Nuclear world The uranium story
INES and the nuclear accidents Radioactive low radiation?!
Uranium transports through Europe The ABC deployment concept

INES and the List of Incidents and Accidents in Nuclear Facilities

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INES? Who the f... is INES?

INES, the International Scale of Nuclear and Radiological Events (INES) is a tool to convey to the public the safety significance of nuclear and radiological events, but INES has more than one problem...

 

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Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

2017

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests03 September 2017 Nuclear weapons proving ground

North Korea's 6th nuclear bomb test

P'unggye-ri

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Wikipedia

North Korean nuclear weapons program

On September 03rd, 2017 at 11:00 a.m. local time, earthquake monitoring stations worldwide registered an artificially caused earthquake in North Korea. According to the Chinese Earthquake Office, it had a magnitude of 6,3 - the authority corrected initial American measurements that had initially indicated 5,6. North Korea announced the successful test of a hydrogen bomb. As in the previous tests, the hypocenter was in the Kilchu region in the north-east of the country, which is also where the P'unggye-ri nuclear weapons test site is located.

So far it was the last of the total 2056 Nuclear weapons tests worldwide ...

As a consequence of this nuclear weapons test, the UN Security Council decided to further tighten sanctions against North Korea ...

 

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Sources A year earlier One year later Top

2016

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests09 September 2016Nuclear weapons proving ground

North Korea's 5th nuclear bomb test

P'unggye-ri

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Wikipedia

North Korean nuclear weapons program

On September 09, 2016 at around 2:30 a.m. CET, earthquake monitors in South Korea, China, the USA and Europe registered a magnitude 5,3 earthquake in North Korea. A few hours later, North Korea announced the successful test of a nuclear bomb...

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https://de.wikipedia.org/wiki/Punggye-ri_(Testgelände)

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https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

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Nuclear Weapons A - Z

North Korea

... To date, North Korea has carried out six nuclear tests: in 2006, 2009, 2013, twice in 2016 and most recently in September 2017. North Korea claimed on January 6, 2016 that the country had successfully tested a hydrogen bomb for the first time. On May 22, 2018, North Korea closed its Punggye-ri nuclear test site.

North Korea has a significant ballistic missile program and has so far been one of the most active exporters of ballistic missile systems, components and technology to other countries such as Pakistan, Iran, Libya, etc. Kim Jong Un announced on April 20 that he was suspending all nuclear and missile tests after agreeing with South Korean President Moon Jae-in to end the state of war between the two parts of Korea. North Korea has not tested since that 2018 summit...

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests04 January 2016Nuclear weapons proving ground

North Korea's 4th nuclear bomb test

P'unggye-ri

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Wikipedia

North Korean nuclear weapons program

On January 06, 2016 at around 2:30 a.m. CET, earthquake monitors in South Korea, China, the USA and Europe registered a 5,1 magnitude man-made earthquake in North Korea. About an hour later, North Korea announced the successful test of a hydrogen bomb... 

 

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Sources A year earlier One year later Top

2015

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INES category 218 August 2015

Blayais, FRA

Overexposure of a worker beyond the legal limit.

Nuclear Power Accidents.pdf

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AtomkraftwerkePlag

Blayais

In June 2015, twice in one week, over 100 people had to be evacuated from the Unit 4 building after elevated levels of radioactivity were detected. 

On August 18, 2015, a worker was exposed to levels of radiation in excess of guidelines. The event was classified as an INES level 2 incident.

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Wikipedia

Blayais

In 2020, the French government announced a 10-year extension for all reactors in operation by a further 10 years from 40 to 50 years. This was approved by the French regulator in 2021 subject to conditions ...

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INES category 128 May 2015

Cattenom, FRA

Unexpected opening of a valve in the secondary system, resulting in a vapor leak.

Nuclear Power Accidents.pdf

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Wikipedia

Cattenom

On May 28, 2015, a valve on the secondary cooling of reactor block 1 stuck in the open position, releasing steam to the environment. The water level in a connected steam generator dropped; to avert a power excursion, the reactor block was automatically shut down in an emergency. According to INA, the steam generator may have been damaged; in the event of further damage, radioactivity could escape into the environment, but this did not happen ...

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AtomkraftwerkePlag

Cattenom

The Cattenom nuclear power plant is located in the Lorraine region north of Metz on the Moselle and is only a few kilometers from the German and Luxembourg borders. Because of the proximity to the border, the frequent breakdowns and the poor safety standards, Rhineland-Palatinate, Saarland and Luxembourg repeatedly demand that the system be shut down ...

 

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Sources A year earlier One year later Top

2014

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INES category 117 May 2014

Tarapore, Maharashtra, IND

(INES 1 - Classification!)

Overdosage of a worker during a transfer process of an irradiated neutron detector.

Nuclear Power Accidents.pdf

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AtomkraftwerkePlag

Tarapore

impoverishment, displacement and disease

The documentary filmed in 2013 "High Power" clarified in interviews the devastating effects of the Tarapur nuclear power plant on the people who have been protesting against the plant since 1999, and the ruthless actions of the Indian state power. The police drove them out of their villages and cleared their houses with bulldozers. Due to the hot cooling water, the "Many suffer from previously unknown diseases such as cancer, heart, respiratory and kidney diseases, infertility, miscarriages, high infant mortality, brain damage and disabilities."

The film, which is banned in India, is directed by Pradeep Indulkar, who worked as an engineer at an Indian nuclear research center for twelve years before becoming an anti-nuclear activist...

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Wikipedia

Tarapore

On May 9, 1983, the daily newspaper The Times of India reported that the Tarapur nuclear power plant was severely radioactively contaminated and could hardly be operated. The employees of the prestige object would be exposed to the ionizing radiation well above the officially and internationally approved guideline values.

In addition to the generators, the PREFRE (Fuel Reprocessing Plant) and Advanced Fuel Fabrication Facility (AFFF) for the production of MOX fuel elements and fuel elements for light water reactors (LWR) and heavy water reactors (PHWR) have also been located on the site since 1982.

Since 1990 there has been a Waste Immobilization Plant (WIP), in which the nuclear waste is vitrified, and a repository (Solid Storage Surveillance Facility), which is to receive the waste from Tarapur and Trombai by 2010.

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Nuclear power accidents by country#India

 

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2013

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INES category 226 September 2013

Petten, NLD

Three out of six control rods showed defects, the research reactor had to be shut down for 5 months.

Nuclear Power Accidents.pdf

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Wikipedia

Institute of Energy

As part of the EURATOM treaty, the Netherlands and the then EURATOM Commission signed the treaty establishing the European research center in 1961, which was opened in Petten in 1962. It took over the high-flux reactor for materials research that had gone into operation the previous year and is now used primarily for the production of medical isotopes...

The fuel elements have since been removed. The High Flux Reactor (HFR) at Petten remains operational and is scheduled to be replaced in 2024 by a new multi-purpose Pallas-type HFR.

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AtomkraftwerkePlag

Netherlands

In 2020, the Rutte government commissioned the consulting firm Enco, which was founded in 1994 by former members of the International Atomic Energy Agency (IAEA), to conduct a pro-nuclear study. This came to the conclusion that nuclear power is a cost-effective source of energy for the goal of CO2 reduction and recommended extending the service life of the existing nuclear power plant and building new ones. Three to ten new power plants were under discussion.

In December 2021, the new government announced that it would build two new nuclear power plants and provide five billion euros for them. In addition, the service life of the Borssele nuclear power plant is to be extended...

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests12 February 2013Nuclear weapons proving ground

North Korea's 3th nuclear test

P'unggye-ri

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Wikipedia

North Korean nuclear weapons program

On February 12, 2013 at around 12:4 p.m. local time (4,9:5,2 a.m. CET), the earthquake monitoring stations in several countries registered an artificially caused earthquake with a magnitude of XNUMX to XNUMX in North Korea. The hypocenter was about a kilometer below the surface in the Kilchu region in the northeast of the country, where the P'unggye-ri nuclear weapons test site is located. The state news agency KCNA had previously announced a "high-intensity action". After the earthquake, KCNA announced an underground test of a lightweight, miniaturized nuclear weapon, but of greater power than previously...

As a consequence of this nuclear weapon test, the UN Security Council unanimously decided on March 7, 2013 to tighten sanctions against North Korea ...

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https://de.wikipedia.org/wiki/Punggye-ri_(Testgelände)

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https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/glossar/n/n-texte/artikel/e1ade835dd8c4151ecdd9a3e88be0ffd/nordkorea.html

 

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Sources A year earlier One year later Top

2012

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INES category 218 January 2012

Cattenom, FRA

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Wikipedia

Cattenom

A missing component did not prevent backflow in the cooling lines of the storage pool for the fuel assemblies of Units 2 and 3. The storage basin could have become empty in an uncontrolled manner. Due to a malfunction, the cooling water injection line of the spent fuel pool could - instead of feeding water regularly - suck water from the pool, which would slowly empty it and lead to larger releases of radioactivity. There is usually a device to interrupt this suction process. In Cattenom it was found in January that this had never been attached to Blocks 2 and 3. If the basin had emptied there, the last countermeasure could have been to pump in external water, for example from the river, using tank fire-fighting vehicles and hose connections...

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

Cattenom

In July 2012, the French nuclear regulatory authority (ASN) made it a requirement for the operator Électricité de France (EDF) to replace the motor pumps for the water supply to the cooling ponds, as they were not robust enough in the event of fuel overheating. This affects the Cattenom, Belleville, Flamanville, Paluel and Saint-Alban nuclear power plants.

According to an information sheet from the citizens' initiative "Cattenom Non Merci", around 2014 reportable events had occurred at the Cattenom nuclear power plant by 800...

 

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Sources A year earlier One year later Top

2011

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14 March 2011

Pickering, Ontario, CAN

(INES - Classification!)

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Ontario's Nuclear Generating Facilities - English - PDF file

Page 8 - Safety Issues at the Pickering “A” Nuclear Station

Translate with https://www.DeepL.com/Translator (free version)

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Wikipedia - English

Pickering Incidents 

On March 14, 2011, 73 cubic meters of demineralized water leaked into Lake Ontario due to a failed pump seal. According to the Canadian Nuclear Safety Commission, there was little risk to the public...

Translated with https://www.DeepL.com/Translator (free version)

Nuclear power accidents by country#Canada

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Pickering_(Kanada)

The grassroots organization Sierra Club Canada protested against the lifetime extension in 2013 and called for the nuclear power plant to be shut down immediately due to aging, increasing radiation and increasing release of tritium. In June 2010, for example, unexpected beta-gamma radiation from reactors 5 to 8 was released into the water.

On March 17, 2011, 73.000 liters of water, slightly contaminated with tritium, flowed into Lake Ontario because of a sealing problem at a pump. The operator and supervisory authority described the risks as "negligible".

In January 2012, according to the Sierra Club, the "broken" reactor 4 leaked contaminated water due to a leak ...

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INES category 213 March 2011

Doel, BEL 

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Doel

On March 13, 2011, damage to Unit 4's water pump was discovered...

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Nuclear power accidents by country#Belgium

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Doel_(Belgien) 

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INES category 312 March 2011

Fukushima 2 Daini, JPN 

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Wikipedia 

https://de.wikipedia.org/wiki/Chronologie_der_Katastrophe_in_Japan_von_2011

Due to the great Tōhoku earthquake of March 11, 2011 and the subsequent tsunami, all four reactor blocks in the Fukushima-Daini (Fukushima II) nuclear power plant were automatically switched off.

On March 12.03.2011, 1, the temperature in the condensation chambers of units 2, 4 and 100 rose to over 10 ° C and the pressure reduction systems ceased to function. For Fukushima II, an evacuation zone with a radius of 20 kilometers was ordered. The evacuation area of ​​Fukushima II was almost entirely within the 3 km evacuation zone for Fukushima I Daiichi. The temperature in the 15 reactors only fell below 100 ° C on March XNUMXth.

On April 18.04.2011, 3, the Japanese nuclear regulatory authority (NISA) rated the events in Fukushima-Daini as INES level XNUMX.

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Nuclear power accidents by country#Japan

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Fukushima_Daini_(Japan)

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INES category 712 March 2011

Fukushima 1 Daiichi, JPN

(INES 7 | NAMS 7,5)

There were about 1,59 million TBq released radioactivity.

An earthquake and tsunami at the Fukushima Daiichi nuclear power plant failed the emergency power generators, causing the reactors to crack and leading to fires and nuclear meltdowns.

Nuclear Power Accidents.pdf

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Wikipedia

https://de.wikipedia.org/wiki/Chronologie_der_Katastrophe_in_Japan_von_2011

Due to the damage to the power supply and cooling system, which were caused by the great Tōhoku earthquake of March 11, 2011 and the subsequent tsunami, as well as the lack of cables for mobile power generators, it occurred in three out of six at the Fukushima-Daiichi (Fukushima I) nuclear power plant Reactor blocks to overheating of the reactor core.

There were several explosions:
In Block 1 on March 12th,
in block 3 on March 14th and
in block 2 on March 15th,

in which the outer building shells were destroyed and radioactive material was released. In addition, on March 15, a fire broke out in reactor block 4. The reactor cores of Units 1 and 3 were flooded with seawater and boric acid for makeshift cooling and to protect against radioactive radiation. The Japanese government ordered evacuation measures with a radius of 20 km, which have affected around 80.000 people so far.

On March 1, 3, the events in blocks 18 to 2011 were provisionally classified as INES 5 by the Japanese Nuclear Safety Agency (NISA).

On April 12.04.2011, 7, the Japanese Nuclear Regulatory Authority (NISA) put Fukushima-Daiichi on a level with the Chernobyl disaster (INES level XNUMX) ...

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Nuclear power accidents by country#Japan

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Fukushima_Daiichi_(Japan)

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INES category 216 February 2011

Tricastin, FRA

The failure of the emergency diesel generator was discovered during one of the regular tests.

Nuclear Power Accidents.pdf

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Tricastin

On February 16, it was found that in more than half of the emergency power diesel generators in Units 3 and 4, some individual parts that had been replaced two years ago for the purpose of replacement could fail prematurely if the diesel had been running for a little longer ... In the event of failure of the external power grid and the reserve grid (Emergency power failure) the power supply for cooling down the decay heat in the reactor core would not have been secured with Tricastin 3/4, in the worst case it could even have led to a core meltdown in both blocks...

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tricastin_(Frankreich)

 

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Sources A year earlier One year later Top

2010

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04 February 2010

Vermont Yanks, USA

(INES - Classification!)

Radioactive tritium escaped from the nuclear power plant's underground pipelines into the groundwater and led to the power plant being shut down.

Nuclear Power Accidents.pdf

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Wikipedia

Vermont Yanks

In February 2010, traces of 137Cs were found on the nuclear power plant site at levels three to XNUMX times higher, according to the Vermont government, than would be expected from the impact of nuclear weapons testing and the Chernobyl disaster. The operator Entergy then announced that it would remove the soil and dispose of it as nuclear waste.

On August 27, 2013, the owner Entergy announced, despite the extended license, that the nuclear power plant should be decommissioned in 2014, as continued operation is no longer economically viable. The reason for the Senate decision was a Tritium leak in the underground of the factory ...

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Nuclear power accidents by country#United_States

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AtomkraftwerkePlag

Vermont Yankees (USA)

In 2010, it turned out that radioactive water containing tritium had leaked into the groundwater. The operator incurred $821 million in costs. In addition, cesium-137 was detected on the site. That same year, as a result of soil contamination, the state of Vermont decided to phase out nuclear power and shut down Vermont Yankee...

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US nuclear power plant - radioactive substances contaminate soil:

https://www.spiegel.de/wissenschaft/technik/us-atomkraftwerk-radioaktive-substanzen-verseuchen-boden-a-686621.html

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We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

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Sources A year earlier One year later Top

Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

2009

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INES category 127 December 2009

Fessenheim, FRA

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Fessenheim

On December 27, a similar disturbance occurred at the Fessenheim NPP as before in Cruas, in which plant residues got into the cooling circuit when the reactor was started up (INES stage 1).

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Fessenheim_(Frankreich)

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INES category 202 December 2009

Cruas, FRA

Vegetation blocked the inlet of the cooling system, the system had to be shut down and repaired.

Nuclear Power Accidents.pdf

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Wikipedia (FRA)

Centrale nucleaire de Cruas

On December 2, in Unit 4 of Cruas NPP, leaves and other fall debris accumulated in the river cooling water circuit and clogged it. The reactor was shut down and switched to hot standby with the flow-independent emergency power supply via the steam generators. However, even after this process, the reactor core must be further cooled with the river cooling water - because of the ongoing decay - in the so-called after-cooling mode, so that it does not overheat and melt ...

Translated with https://www.DeepL.com/Translator (free version)

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Cruas_(Frankreich)

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Aug 09, 2009 - Gravelines, FRA INES category 1

(INES 1 - Classification!)

The fuel assembly system failed to properly eject the spent fuel rods from the Gravelines nuclear plant, resulting in the fuel rods becoming stuck and the reactor shutting down.

Nuclear Power Accidents.pdf

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Wikipedia - English

Nuclear power accidents by country#France

In August 2009, during the annual refueling in Reactor 1, a fuel assembly caught on the upper handling structure, halting operations and prompting the evacuation and isolation of the reactor building...

Translated with https://www.DeepL.com/Translator (free version)

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Information on this accident and other similar incidents is available in German Wikipedia no longer to be found...

https://de.wikipedia.org/wiki/Kernkraftwerk_Gravelines

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Gravelines_(Frankreich)

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INES category 2June 10, 2009 - Cadarache, FRA 

Dismantling of the production plant for MOX fuel elements

In June, dismantling works were carried out at the French nuclear facility Cadarache 39 kilograms of plutonium discovered.
The Atomic Safety Agency ASN stopped the work on October 15, 2009 and assigned the incident to INES Category 2. She also accused the operator of not reporting the event in time …

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Wikipedia

Cadarache - ATPu production plant - dismantling

After the end of use as a production plant for MOX fuel elements in 2003, it was decided to dismantle this part of the plant. Demolition work began in February 2009. In October 2009, work on the plant had to be temporarily stopped by order of the French nuclear safety authority, as a total of 39 kg of plutonium dust was unexpectedly found in the glove boxes...

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

Cadarache (France)

The Center de Cadarache is located on the so-called Durance Fault, a geological fracture zone where strong to devastating earthquakes have repeatedly occurred every 100 years, most recently in 1913. Most of the facilities in Cadarache are therefore classified by French seismologists as a radiation risk for viewed the region...

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests25 May 2009Nuclear weapons proving ground

North Korea's 2nd nuclear bomb test

P'unggye-ri

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Wikipedia

North Korean nuclear weapons program

Underground, 10-20 kilotons (kT) - On May 25, 2009, the second nuclear test was conducted in North Korea. According to Russian information, the explosive device had an explosive force of 20 kilotons. In addition to the nuclear test, several short-range missiles were launched.

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https://de.wikipedia.org/wiki/Punggye-ri_(Testgelände)

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https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/glossar/n/n-texte/artikel/e1ade835dd8c4151ecdd9a3e88be0ffd/nordkorea.html

 

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2008

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INES category 1 - 3September 05 to November 06, 2008

Ascó, ESP

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Wikipedia

Ascó Nuclear Power Plant

Between September 5, 2008 and November 6, 2008, eight INES accidents were registered in the double-unit facility, five of them in Unit II. (Source: CSN)

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The text quoted above on the 2008 INES incidents is in Wikipedia will no longer be found in 2022, and the link to the source of the information has also been removed. 

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

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AtomkraftwerkePlag

Akw Ascó (Spain)

Escape of radioactive water

In November 2007, the conditions in the nuclear power plant seemed appalling. Radioactive particles were released through the ventilation and also reached houses and the Ebro. The operators only admitted the leak months later after environmental protection organizations had received the relevant information. In the meantime, dozens of school classes had visited the nuclear power plant. Proceedings have been opened against those responsible...

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Wikipedia - en

https://en.wikipedia.org/wiki/Asc%C3%B3_Nuclear_Power_Plant

In November 2007, an INES level 1 incident occurred in reactor block 2. The Spanish Nuclear Safety Council (CSN) was only informed about the leak on April 4th. Although the leak began in November, the particles were not discovered outdoors until March 2008.

The CSN initially estimated the total radioactivity detected at around 235.000 becquerels. The plant operator later estimated that a maximum of 2,3 microcuries of radioactivity escaped. CSN announced that it would change the classification of the leak from Level 1 to Level 2 because of "inadequate control of the radioactive material and incomplete and deficient information provided to the control agency". An investigation was launched and the plant's director was fired.

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Dezember 2008INES category 1 - 3

Gravelines 5, FR

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Gravelines

During the revision in June, the engine of one of the two emergency diesel engines was replaced. After more than three months, in October, it was found that this replacement engine had not been properly installed: the diesel would not have been available for three months, which represents a redundancy failure that is far too long ...

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Gravelines_(Frankreich)

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25 August 2008INES category 3

IRE Fleurus, BEL

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http://www.greenpeace.de/themen/energiewende/atomkraft/belgien-strahlenunfall-schwerer-als-gedacht

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Wikipedia

fleurs

Radiochemical industrial plant

2008

After completion of a production process, three smaller collection tanks were filled into a larger waste water tank. This led to an unexpected chemical reaction with the formation of radioactive iodine-131. Due to a defective measuring computer, this could escape slowly and unnoticed through a chimney into the environment for a few days. When the problem was noticed, production in the entire plant was stopped on the instructions of the Belgian supervisory authority and a district sector of 5 kilometers to the north-east was banned from the consumption of agricultural products for a few days (INES 3).

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Wikipedia - fr

https://fr.wikipedia.org/wiki/Institut_national_des_radioéléments

An estimated 45 GBq of iodine-131 was released through the chimney. The Belgian nuclear regulatory agency Agence Fédérale de Contrôle Nucleaire (AFCN) shut down the IRE, a producer of radioisotopes for medical use, immediately after the accident was reported. Residents were warned by the police over loudspeakers six days after the incident not to eat fruit, vegetables, milk and water from the area, after the government's crisis team had revoked the initial all-clear and activated the European information system ECURIE ...

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Nuclear power accidents by country#Belgium

From 2002 to 2011, a total of 5 INES-relevant accidents (3 x INES-2 and 1 x INES-4 and INES-3 each) were registered in Belgium.

Translate with https://www.DeepL.com/Translator (free version)

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July 15 and August 19, 2008INES category 1

Santa Maria de Garona, ESP

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Santa_María_de_Garoña

On July 15 and August 19, the plant's two battery systems were tested. According to the CSN authority, their determined capacity was insufficient. In the event of an accident, these direct current systems perform various safety functions, such as starting the emergency diesel or displaying the reactor status. The main problem with this event is that after detecting the malfunction of the first system on July 15, the operator did not test the second system immediately, but only on August 19, 2008 ...

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The 1 INES-2008 incident text quoted above is in 2022 in the Wikipedia no longer to be found.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

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CSN - Consejo de Seguridad Nuclear

http://web.archive.org/web/20141122120320/http://www.csn.es/index.php/es/nuclear-power-plants/santa-maria-garona 

Reportable Events

Level I event at the Santa María de Garoña nuclear power plant, reported on August 18, 2008, due to the detection of a capacity failure in the supply batteries of the main buses A and B ...

Translate with https://www.DeepL.com/Translator (free version)

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Santa_Mar%C3%ADa_de_Garo%C3%B1a_(Spanien)

In February 2012, it was decided to extend the term by five years until 2018. However, on December 16, 2012, nuclenor prematurely took the nuclear power plant off the grid due to a lack of profitability. An upgrade would have cost 120 million euros, and for 2013 there would also have been an increased tax of 153 million euros.

On June 19, 2013, the Spanish Minister of Energy confirmed that the reactor would be officially closed for good on July 6, 2013...

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23 July 2008INES category 0

 Tricastin, FRA

(INES 1 - Classification!)

The operator Areva reported that on July 08, uranium-contaminated sewage had leaked and flowed into the Rhone. On July 23, around 100 people were "lightly contaminated" by radioactive particles...

Nuclear Power Accidents.pdf

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Tricastin

... on July 23, around 100 people were "lightly contaminated" by radioactive particles. The particles had escaped from the vent line of a shut down nuclear reactor.

Police forces searched the director's office to find out whether the operator had complied with the applicable safety regulations...

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INES category 108 July 2008

Eurodif, Tricastin, FRA

(INES 1 - Classification!)

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tricastin_(Frankreich)

2008 uranium accident

On July 8, 2008, an alarm was raised in the Tricastin area. In a plant for the treatment of uranium solutions on the nuclear power plant site, 30 cubic meters (= 30.000 liters) uranium-containing liquid leaked out of a leaking retention basin during cleaning ...

Water extraction and fishing were prohibited. The environmental protection movement Sortir du Nucléaire dismissed the regulator's claim that there was little risk as downplaying it. "Anyone who drinks contaminated water has the particles in their body. Even with low levels of radiation, there is a considerable risk of cancer."

On July 11, three days later, the nuclear supervisory authority prohibited further operation of the plant because the safety measures were insufficient. Suddenly it was said that 224 kilograms of uranium had leaked and 74 kilograms of it had gotten into the water.

The classification of the accident as an INES level 1 incident was doubted by Sortir du Nucléaire because radioactivity was released. "Based on the information from the authorities, the incident should at least be classified as a "serious incident" at level 3, if not as an "accident" at level 4"

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Wikipedia

https://de.wikipedia.org/wiki/Eurodif#Störfall

At the beginning of July 2008, a large amount of a solution containing unenriched uranium escaped from the plant and was released into the environment. The radioactive solution seeped into the ground and through the sewage system into the smaller rivers Gaffière and Lauzon, the Rhone, possibly also into the groundwater ...

The figures for the amount of pollutants released vary between 6,25 cubic meters of solution with around 75 kilograms of non-enriched uranium (operator information) and 30 cubic meters of solution with around 360 kilograms of uranium (ASN). According to an independent investigation by the organization CRIIRAD, the incident exceeded the legal limits for annual radiation emissions into the environment by more than 100 times ...

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06 June 2008INES category 1

Philippsburg, GER

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Philippsburg

According to the Baden-Württemberg Ministry of the Environment, a pressure drop in the containment of Unit I that exceeded the permissible values ​​was determined on the night of Friday, June 6, 2008. The vessel, which encloses important parts of the reactor, has a slight overpressure of 20 millibars during normal operation. According to the ministry, the pressure drop determined was 1 millibar per hour and was due to a leak. The leak occurred when the system was started up after the inspection and immediately after the tank was flooded with nitrogen...

-

Nuclear power accidents by country#Germany

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Philippsburg_(Baden-W%C3%BCrttemberg)

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10 June 2008INES category 1 - 3

Rivne, UKR

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Riwne

Barely a week after Krško, the same scenario (June 04, 2008 in Krško) was repeated in the Ukrainian NPP Riwne/Rowno. This time the media reported only very sparsely or not at all. The power plant was temporarily taken off the grid.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Riwne_(Ukraine)

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04 June 2008INES category 0

Krsko, SVN

(INES - Classification!)

Regulators shut down the Krsko nuclear power plant after the primary cooling system failed and coolant leaked into the reactor containment.

Nuclear Power Accidents.pdf

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Wikipedia

Nuclear Power Plant Krško | incidents

On June 4, 2008 at 15, a loss-of-coolant accident occurred. Coolant had escaped in the main cooling system (primary circuit) and the reactor output was throttled as a result. The reactor was shut down and completely shut down at 07:20 to be able to investigate the cause of the problem...

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AtomkraftwerkePlag

Krško (Slovenia) | risks and incidents

There were already problems with the delivery in 1981: when the 322-ton steam generator was being transported from Rijeka to Krško, it crashed into the motorway. In the first eight years, operations at the $70 billion facility were halted XNUMX times. The reactor had to be improved in terms of safety ...

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May 2008INES category 1 - 3

Cruas 4, FR

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Cruas

This block was in the revision standstill with the reactor open. Suddenly it was noticed that two valves of the residual heat removal were only partially open for a full four days, which significantly impeded the post-decay heat removal. Writes from an automatic alarm ASN nothing, it is therefore conceivable that the whole thing was only noticed after these four days by steam phenomena in the reactor flood basin (note: NPPs have to cool the fuel even after the reactor has cooled down and opened for the first time, since the fission products continue to with degressive intensity, decay).

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Cruas_(Frankreich)

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April 2008INES category 1 - 3

Flamanville, FRA

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Flamanville

In block 2 of the Akw Flamanville was acc. to Nuclear Regulatory Authority ASN "Severe corrosion" found in the engine cooling lines of both emergency diesel generators. The safety reserves for an emergency power case were therefore small ...

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Flamanville_(Frankreich)

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April 2008INES category 2

Ascó, ESP

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Ascó

Discovery of radioactivity from the fuel assembly building on the factory premises. Although the doses were below the limit values, the CSN authority classified the incident with INES 2: The operator had misinterpreted clear indications (triggering activity alarms) for months and most recently provided the CSN with downplaying data ...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Asc%C3%B3_(Spanien)

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04 February 2008

Krümmel, GER

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Krümmel

On the morning of February 4, 2008, a smoldering fire broke out in a ventilation system in the power plant. The plant fire brigade was able to put it out within an hour using a fire extinguisher. External help was not necessary. At that time, the power plant had been idle since 2007.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Kr%C3%BCmmel_(Schleswig-Holstein)

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February 2008INES category 1 - 3

La Hague, FRA

-

Wikipedia

La Hague reprocessing plant

The highly active substances treated in this reprocessing plant constantly release explosive hydrogen, which threatens the tightness of the building when it reacts with oxygen. To avoid an explosion, the air in the building is freed from hydrogen by continuous circulation. For 3,5 hours, this circulation only worked in normal operation, both reserve air strands were not operational due to defects or maintenance work...

Greenpeace, under the supervision of a chartered technical surveyor, found ... 400 cubic meters of radioactive waste water are flushed daily through a four and a half kilometer pipe into the Alderney Strait via Herqueville. This operation is legal, since only the dumping of barrels with nuclear waste in the sea is prohibited, but direct discharge is not ...

-

https://en.wikipedia.org/wiki/La_Hague_site

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

La Hague (France)

World's largest reprocessing plant

There have been a number of incidents in La Hague since it went into operation.

A study published by the European Parliament in 2001 lists events from 1989 to 2011 that were reported by the operator. Eight accidents were described in more detail ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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February 2008INES category 1 - 3

Paluel, FRA

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Paluel

Incorrect dispositions of insulation fittings were found in one of the four blocks in February, which had existed for more than five months. "This questioned the tightness of the containment," writes the ASN, "during the period in question, had an accident happened". A core melt could have resulted in releases.

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Paluel_(Frankreich)

 

***


Sources A year earlier One year later Top

2007

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December 2007INES category 1 - 3

Vandellos 2, ESP

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Vandellòs

After the eight Spanish NPP units had recorded 14 INES incidents in just three consecutive months, another incident occurred in Vandellos in December. During a test with the reactor running, some shutdown rods unexpectedly collapsed into the core. According to the supervisory authority CSN, this led to a pressure drop in the reactor circuit, and thus to the triggering of the emergency cooling. The pressure build-up that followed led to the activation of the reactor safety valves and the leakage of slightly contaminated cooling water into the containment sump. An internal emergency pre-alarm was triggered.

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Vandell%C3%B3s_(Spanien) 

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21 August 2007INES category 2

Beznau 1, CHE

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Beznau

On August 21, block 2 was in annual revision. The block-common reserve grid feed-in was switched off for maintenance work. To compensate, the emergency diesel generator of Unit 1, which was running at full load, was switched on when idling. After the reserve network was re-established, it was noticed that this diesel would not have fulfilled its emergency power function due to a fault. According to the HSK authority, there would theoretically still have been a cross-connection to the emergency diesel of the shut down Unit 2, but this diesel was also being maintained...

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Beznau_(Schweiz)

Greenpeace has published a fact sheet on Beznau with a list of incidents. According to this, for example, in 1992 two workers died who were in an unpumped room with argon. In 1997 there was a total failure of a cooling system for two weeks. According to the Swiss supervisory authority ENSI (then HSK), however, "one of three emergency cooling lines was not immediately ready for use for two weeks." In August 2009, two workers were badly exposed to radiation due to uncoordinated work. Incidents and emergency shutdowns have increased since 2007.

The August 2009 incident was assessed as an INES level 2 incident. Because of the incident, ENSI only certified that the Beznau nuclear power plant had sufficient operational safety in 2010 and initiated criminal proceedings...

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July 2007INES category 1

Unterweser, GER

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Unterweser

According to an E.ON report from July 2007, one of the four strands of the emergency and residual heat removal system was "only available to a limited extent" for an unspecified time. In addition, periodic repair work was carried out on a second line. However, the two remaining lines (2 x 50%) would still have provided sufficient cooling capacity for the limiting incident if required.

The BMU then supplemented and criticized this situation: The operator had been aware of the error in the line concerned for over a year, but had not rectified it.

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Unterweser_(Niedersachsen) 

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28 June 2007INES category 0

Brunsbuettel, GER

(INES - Classification!)

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Brunsbüttel

During maintenance work in the substation outside the power plant site by E.ON, a short circuit occurred when a newly installed converter was switched on, for a reason that has not yet been clarified. As a result, the NPP was disconnected from the grid on June 28, 2007 and shut down using an automatic emergency shutdown. According to TÜV Nord, the shutdown did not go smoothly. A small smoldering fire developed in a turbine due to the escaping oil. In addition, cracks would have formed on the cover plates.

When the reactor was restarted, incorrect operation by the staff led to two shut-offs in the reactor water purification system on July 1st. When introducing water from the reactor into the condensation chamber, a limit value has been exceeded. This limit value is intended to indicate a broken pipe in the system and then direct the system to shut-off, but there was no broken pipe.

Despite an express request from the reactor supervision on July 2nd to the deputy works manager, he initially denied this reportable event, it was only officially reported on July 6th at noon. (INES level 0)

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Brunsb%C3%BCttel_(Schleswig-Holstein) 

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28 June 2007INES category 0

Krümmel, GER

(INES - Classification!)

-

Wikipedia

Krümmel

On June 28, 2007, a fire began on a transformer on the site of the NPP, which could be extinguished within a few hours. Transformer oil is said to have ignited due to a short circuit for an unexplained cause. According to the authorities, there was no danger to the nuclear area of ​​the NPP. There were no injuries. The nuclear reactor was shut down by means of an emergency shutdown.

The fire brigade was on site with around 80 emergency services to take measures against the fire. According to the Kiel Ministry of Social Affairs, which is responsible for nuclear supervision, the events in both Krümmel and Brunsbüttel are "definitely notifiable". However, a spokesman for the operator of the Krümmel nuclear power plant, Vattenfall Europe, initially denied this for his power plant, since the event took place outside the reactor.

Due to this series of breakdowns, the nuclear supervisory authority of the Federal Ministry for the Environment got involved. On July 13, 2007 there were searches by the police because Vattenfall had repeatedly refused to question the reactor driver...

- -

AtomkraftwerkePlag

Krümmel

With the accident that occurred on June 28, 2007, the "safety culture" of the operators Vattenfall and E.ON reached a new low. A fire broke out in a transformer plant, which enveloped the nuclear power plant in large black clouds. The operator and the Ministry of the Environment said in unison that there was no danger. However, Vattenfall's claim that there was no connection between the fire and the nuclear area of ​​the reactor was described as misleading and disinformation by the Schleswig-Holstein Ministry of Social Affairs, which is responsible for nuclear supervision.

The incident, which initially looked like a harmless industrial accident, increasingly gave the impression of a "near-disaster" that kept the public busy for weeks...

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INES category 1 - 3June 2007

Cattenom, FRA

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Cattenom

The plant on the border with Saarland released zinc into the Moselle in June in a concentration that was above the permitted limit. The annual limit has not been exceeded, writes EDF; it remains unclear whether it was normal zinc (heavy metal) or the radioactive isotope.

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Cattenom_(Frankreich)

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The example of the Philipsburg nuclear power plant makes it clear what went wrong in the nuclear energy debate, and not only in Germany. Each individual disorder may be "barely worth mentioning" on its own, but the underlying principles of overconfidence, "what can't be, what can't be," sloppiness and dealing with the problems in the public eye are pervasive. Playing it down, covering it up and ridiculing critical voices as not to be taken seriously, that's how it has been all these years since the beginning of the nuclear debate and that's how it is to this day. Although the reasoning of Nuclear lobby has long since failed brilliantly, the "Friends of MIC" like the proverbial dove on the chessboard ...

-

INES category 207 May 2007

Philippsburg, GER 

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Philippsburg

On May 7, 2007, the containment was not properly closed after an overhaul "because the limit switch was not switched exactly". A valve was open on both sides of the security lock (INES level 1).

Reportable event 07/2001: Levels in the flood tanks too low

As part of an inspection, it was found that for years after inspections and other shutdowns, the reactor had been run at subcritical temperatures without all flood tanks of the emergency and residual heat removal system having the necessary fill level, so that emergency cooling in accordance with the operating manual was not provided during startup in the subcritical state was. This represents a gross violation of the safety regulations, which was already the norm during the revisions of previous years and also practice in other plants. As a result of the investigations, the operating manual had to be made more precise.
An INES officer rated the event as Level 2 ...

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Philippsburg_(Baden-W%C3%BCrttemberg)

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2007 INES category 1 - 3

Leibstadt, CHE

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Leibstadt

When the automatic pressure relief system (DAS) was accidentally triggered during a test in normal operation, some of the pressure relief valves in the reactor system opened. The water had to be replenished with the emergency cooling (sources: IAEO, HSK)

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Leibstadt_(Schweiz) 

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INES category 1 - 32007 April

Penly 2, FR 

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Penly

When the block was restarted after the overhaul in April, after two days of testing, it was noticed that all emergency cooling pumps would have been unavailable during the two days if required (source: ASN)

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Nuclear power accidents by country#France

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Penly_(Frankreich) 

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2007INES category 1

Dampierre, FRA

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Dampierre

Failure of the external network including the reserve network as well as an emergency diesel generator with 100% supply capacity. The factory is about 80 km from Paris. The reactor was cooled down with the only remaining diesel (100%). Nevertheless, the French regulatory authority ASN only classified the incident with INES 1. Reason: The redundancy reserves of the self-steam-driven auxiliary turbine (ready for immediate use) and the gas turbine (whose synchronization could take hours) were still available (sources: ASN, IRSN)

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Nuclear power accidents by country#France

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Dampierre_(Frankreich)

 

***


Sources A year earlier One year later Top

2006

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests09 October 2006Nuclear weapons proving ground

P'unggye-ri, North Korea's first atomic bomb test

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Wikipedia

North Korean nuclear weapons program

Underground, 0,55 kilotons (kT) - According to North Korean information, the test was successfully carried out on October 9, 2006. Numerous governments around the world sharply criticized the bomb test; even China, allied with North Korea, faced consequences ...

-

https://de.wikipedia.org/wiki/Punggye-ri_(Testgelände)

-

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

- -

Nuclear Weapons A - Z

https://www.atomwaffena-z.info/glossar/n/n-texte/artikel/e1ade835dd8c4151ecdd9a3e88be0ffd/nordkorea.html

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25 July 2006INES category 2

Forsmark NPP, SWE

(INES 2 - Classification!)

A short circuit in an outdoor switchgear of the network near the boiling water reactors caused the emergency shutdown of unit 1 and led to a series of subsequent failures in the plant in a complex scenario. Due to a design error, disconnecting the plant from the grid and switching to house load operation - in which the power plant uses its own electricity to run important ancillary units - did not work as planned.

Nuclear Power Accidents.pdf

-

Wikipedia

Forsmark Nuclear Power Plant

On July 25, 2006, the Forsmark-1 reactor was automatically disconnected from the power supply after a short-circuit in the substation through which the nuclear power plant feeds its electricity to the general grid. This led to a load shedding of the generator and the heat produced in the reactor could no longer be converted into electrical power. The reactor was shut down via a scram. The electricity for the control of the nuclear power plant and the feed pumps, which have to dissipate the decay heat, failed. It had to be provided as a substitute by diesel emergency generators. However, two of the four generators could not feed into the emergency power grid because they remained electrically connected to the 500 V line, which had failed. In addition, the power supply for some of the measuring devices in the control room failed...

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AtomkraftwerkePlag

Forsmark (Sweden)

On July 25, 2006, Sweden apparently narrowly escaped a nuclear catastrophe. Reactor 1 at Forsmark Nuclear Power Plant was cut off from power supply due to a short circuit. Only two out of four emergency generators started up. An investigation into the accident revealed that the short circuit had failed computers, speakers, and displays, preventing personnel from seeing the reactor data clearly. "For example, the water level in the reactor dropped significantly as a result of the scrambling, but the exact level remained unclear because of the power outage."

According to the former chief designer of the nuclear power plant, Höglund, you were only 20 minutes away from a meltdown.

The accident was classified as an INES level 2 incident.

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11 March 2006INES category 4

IRE Fleurus, BEL

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Wikipedia - Fr

https://fr.wikipedia.org/wiki/Institut_national_des_radioéléments

On March 11, 2006, a worker irradiating food at Sterigenics was severely irradiated by the Cobalt-60 ionizing radiation source. He entered the room when the source was unsecured and received a high, potentially lethal dose of 4,4 to 4,8 Gray. It was an INES 4 accident. The IRE had a contract for safety management in the company.

 Translated with https://www.DeepL.com/Translator (free version)

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Nuclear power accidents by country#Belgium

From 2002 to 2011, a total of 5 INES-relevant accidents (3 x INES-2 and 1 x INES-4 and INES-3 each) were registered in Belgium.

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INES category 209 March 2006

NFS, Erwin, Tennessee, United States

At a Nuclear Fuel Services facility in Erwin, 35 liters of highly enriched uranium spilled, necessitating a seven-month shutdown.

Nuclear Power Accidents.pdf

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Wikipedia

Nuclear Fuel Services (NFS)

is an American nuclear company. Along with BWX Technologies, the company is the main supplier of nuclear fuel for the US Navy. In addition, the company deals with the conversion of plutonium and uranium from nuclear weapons into fuel rods for nuclear power plants. Browns Ferry nuclear power station is one of the main customers. In addition, one deals with the decontamination of old nuclear power plants. Headquarters Erwin is a small town in Tennessee, Unicoi County.

On August 20, 2007, it was announced that a criticality accident had almost occurred in Erwin. On March 9, 2006, 35 liters of uranium solution ran out of a leaking pipe and spread across a corridor without collecting sufficiently.

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Nuclear power accidents by country#United_States

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INES category 201 March 2006

Kozloduy 5, BGR 

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Kosloduj

During the shutdown of the 5th block on March 1st after a main coolant pump failure, a third of all controls were stuck in the up position. An emergency boration had to be carried out to shut down the reactor. The operator originally classified the incident as INES 0, but the regulatory authority corrected it to INES level 2 ...

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Kosloduj_(Bulgarien)

 

***


Sources A year earlier One year later Top

2005

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29 June 2005

Forsmark NPP, SWE

(INES - Classification!)

Radioactive water leaked into the Baltic Sea from an interim storage facility.

Nuclear Power Accidents.pdf

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Wikipedia

Forsmark, June 29, 2005

On June 29, 2005, radioactive water from the interim storage facility for low and medium-level radioactive waste in the Swedish Forsmark NPP entered the Baltic Sea. Ten times the normal level of radioactive cesium was measured in the waters near the power station. According to the Swedish Radiation Protection Institute SSI, however, this is still within the permissible limits. Corroded tin containers with radioactive waste were probably to blame for the leak.

Forsmark Nuclear Power Plant

- -

AtomkraftwerkePlag

Forsmark

According to a Greenpeace statement from 2012, the Swedish nuclear power plants in Forsmark, Oskarshamn and Ringhals pose a great danger to the population in Sweden and its neighboring countries due to "technical defects and a poor culture of safety control" ...

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16 June 2005

Braidwood, USA

(INES - Classification!)

Millions of liters of tritium-contaminated water were released from the nuclear power plant from spring 1996 to March 2006, contaminating the local water supply.

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

Braidwood June 16, 2005

Two pressurized water reactors with a capacity of 1.270/1.230 MW are operated at Braidwood, which went into operation in 1987 and 1988. The plant is owned by Exelon Corporation, operated by Exelon Generation Co., manufactured by Westinghouse.

In 2006, Excelon was charged with dumping millions of gallons of tritum-contaminated wastewater into groundwater from spring 1996 to March 2006, a charge the operator did not report until December 2005.

For example, on June 16, 2005, tritium leaked from the nuclear power plant and contaminated the local water supply; the damage cost $48 million...

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Wikipedia

Braidwood

(Eng. Braidwood Nuclear Generation Station) with two Westinghouse pressurized water reactors is located in Will County in the north-east of the US state of Illinois.

The nuclear power plant has two reactor blocks, which in May 2001 received approval from the Nuclear Regulatory Commission for a power increase of five percent each.

In March 2006, multiple lawsuits were filed against Exelon and Commonwealth Edison for tritium releases into local water systems between 1996 and 2003.

In the USA, the operating license for a nuclear power plant is initially issued by the Nuclear Regulatory Commission (NRC) for a period of up to 40 years. The 40 year period was originally based on the depreciation period for fixed assets. The Atomic Energy Act of 1954 allows the operating license to be extended (also repeatedly) by 20 years at a time.

The operating license for Unit 1 was extended on January 27, 2016 to October 17, 2046.

The operating license for block 2 was extended on January 27, 2016 to December 18, 2047 ...

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Nuclear power accidents by country#United_States

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INES category 319 April 2005

Thorp, Seascale, Sellafield, GBR

20 tonnes of uranium and 160 kilograms of plutonium escaped from a ruptured pipe at Sellafield's Thermal Oxide Reprocessing Plant (Thorp) over the course of a year.

Nuclear Power Accidents.pdf

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Wikipedia

This 2005 accident is the first and only Sellafield accident after Windscale 1957 still in the Wikipedia can be found.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Sellafield# Incidents

In April 2005, a leak was discovered in Sellafield, through which around 83.000 liters of radioactive liquid, consisting of nitric acid, uranium and plutonium, escaped unnoticed for months. It is the most serious incident at a nuclear facility in Great Britain since 1992. The public was only informed weeks later, the first press reports appeared on May 9, 2005. The "Independent on Sunday" later reported that the pipe had been leaking since August 2004, but this was not discovered until April 19, 2005.

The British nuclear company BNG (British Nuclear Group), which is responsible for the decommissioning of the Sellafield reactors, was fined on 16 October 2006 for negligence to pay £500.000 (around 750.000 euros) for the incident. The cost of this event is estimated at $76 million.

Since the late 1940's and Windscale/Sellafield's inception, approximately 20 incidents of greater or lesser severity involving the release of radioactivity have been reported. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield

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Nuclear power accidents by country#United_Kingdom

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AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

On April 19, 2005, a leak from a damaged pipe was discovered at the THORP facility, from which 83.000 liters of radioactive acid had spilled. The British nuclear company British Nuclear Group (BNC) admitted that it had not complied with safety regulations and was ordered to pay 500.000 British pounds. The incident has been classified by the IAEA as a serious INES level 3 incident... 

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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INES category 1 - 328 March 2005

Leibstadt, CHE

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Leibstadt

On March 28, 2005, the Leibstadt NPP came to a standstill for five months. The reason for this was damage to the generator; the repair work on the generator was not the responsibility of the HSK (nuclear supervisory authority), as the nuclear part of the nuclear power plant was not affected.

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Leibstadt_(Schweiz)

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2005 INES category 2

All nuclear vehicles in France

The ASN supervisory authority announced that - in the event of a leak in the reactor circuit - if the line suction strainers of the emergency cooling in the containment sump (with waste such as insulating material or rags) clogged, "the coolability of the core is not guaranteed". INES classification: 2. Improvement measures have been announced. The cleanliness is the smaller problem; the aforementioned insulating material only comes off due to a leak that has occurred, due to the pressure forces of the exiting water jet.

-

Nuclear power accidents by country#France

 

***


Sources A year earlier One year later Top

2004

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INES category 22004

Vandellos 2, ESP 

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Vandellòs

The supervisory authority CSN determined that the operator of this plant had kept a line corrosion from it for years, which could have called the functionality of the component cooling into question. If the two lines had failed at about the same time (and not just one, as happened), the reactor would hardly have been able to be cooled down (INES stage 2)

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Vandell%C3%B3s_(Spanien)

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04 November 2004 INES category 1 - 3

Balakovo, RUS

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Balakowo

On November 4, 2004, an incident occurred in Balakovo. The reactor was shut down. According to the operator Rosenergoatom, no radioactivity escaped.

-

Nuclear power accidents by country#Russia

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Balakovo_(Russland) 

- -

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09 August 2004INES category 1

Mihama, JPN

(INES 1 - Classification!)

A steam explosion in block 3 of the Mihama nuclear power station killed 5 workers and injured 6 others.

Nuclear Power Accidents.pdf

-

Wikipedia - English

https://en.wikipedia.org/wiki/Mihama_Nuclear_Power_Plant#2004_accident

On August 9, 2004, an accident occurred in a building housing the turbines of the Mihama 3 reactor. Five workers died and six others were injured when hot water and steam escaped from a ruptured pipe. The accident, which was provisionally classified as INES level 0, was described as the worst accident (to date) at a Japanese nuclear power plant...

Translated with https://www.DeepL.com/Translator (free version)

-

Nuclear power accidents by country#Japan

-

https://de.wikipedia.org/wiki/Kernkraftwerk_Mihama

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Mihama_(Japan) 

In August 2004, at Mihama-3, a condensate line in the non-nuclear secondary circuit broke longitudinally and circumferentially. The escaping hot water turned to steam and scalded workers; five died and six others were injured. The cause was corrosion and sloppiness: the wall thickness of the line had thinned from an initial 10 mm to around 1,5 mm, and the line is said not to have been checked since the reactor was commissioned. The vulnerability had been known a year earlier...

Despite its serious consequences, the 2004 accident was only classified as INES level 1.

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27 July 2004INES category 1

Neckarwestheim, GER

(INES 1 - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Neckarwestheim

At the Neckarwestheim nuclear power plant, human error caused an incident in which water from Block II, contaminated with two megabecquerels, got into the Neckar despite countermeasures being taken immediately. For the first time in Germany, the incident led to the operating company of a nuclear power plant (EnBW) having to pay a fine (€25.000). A plant manager was fired because he had made critical comments.

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Neckarwestheim_II_(Baden-W%C3%BCrttemberg) 

On July 27, 2004, low-level radioactive water escaped from the nuclear power plant and flowed unnoticed into the Neckar. Since the release of radioactive substances was not reported, administrative offense proceedings were initiated ...

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08 February 2004INES category 0

Biblis, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Biblis

An incident occurred at the Biblis nuclear power plant, during which at least five of the power supply systems failed one after the other. During a storm, two high-voltage lines near the NPP collided and caused a short circuit. As a result, a main network connection failed in the power plant, followed shortly afterwards by the second. The reserve connection also did not work. The emergency power supply of Block A and the auxiliary power supply of Block B then also failed. There was therefore a risk that the safety systems could no longer be supplied with energy. As a result of these events, the reactor was automatically shut down for safety reasons. The properly working emergency power diesel generators prevented worse. In the past, some of these four emergency generators were not available several times during regularly recurring tests, but one is sufficient to ensure reactor safety.

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Biblis_(Hessen)

 

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Sources A year earlier One year later Top

2003

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19 November 2003 INES category 2

La Hague, FRA

Worker was contaminated with plutonium during cleaning work.

Nuclear Power Accidents.pdf

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Wikipedia

La Hague reprocessing plant

The highly active substances treated in this reprocessing plant constantly release explosive hydrogen, which threatens the tightness of the building when it reacts with oxygen. To avoid an explosion, the air in the building is freed from hydrogen by continuous circulation. For 3,5 hours, this circulation only worked in normal operation, both reserve air lines were not operational due to defects or maintenance work. (Source: ASN)

Greenpeace, under the supervision of a sworn technical expert, determined ... 400 cubic meters of radioactive waste water were flushed daily through a four and a half kilometer pipe into the Alderney Strait via Herqueville. This operation is legal, since only the dumping of barrels with nuclear waste in the sea is prohibited, but direct discharge is not ...

-

https://en.wikipedia.org/wiki/La_Hague_site

-

Nuclear power accidents by country#France

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AtomkraftwerkePlag

La Hague (France)

World's largest reprocessing plant

There have been a number of incidents in La Hague since it went into operation.

A study published by the European Parliament in 2001 lists events from 1989 to 2011 that were reported by the operator. Eight accidents were described in more detail ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

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10 April 2003INES category 3

Paks, HUN

(INES 3 | NAMS 3,9)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Paks

During cleaning work in unit 2 of the Paks nuclear power plant, the sheathing of fuel rods was damaged. Radioactive gas escaped, causing a "serious incident" (INES 3). Nobody was injured in this accident. However, the measuring probes in the area registered inert gas levels above the limit values. 

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Paks_(Ungarn) 

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01 March 2003INES category 1 - 3

Kozloduy 3, BGR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Kosloduj

In full load operation, a primary circuit leak suddenly occurred at a weld seam. The emergency cooling started working. In contrast to the more powerful Units 1 and 4 and all western pressurized water reactors, units 5 to 6, which have now been shut down, were able to shut off individual segments of the primary circuit with valves. A shut-off was made so that the loss of water could be stopped after a relatively short time.

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Kosloduj_(Bulgarien)

 

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Sources A year earlier One year later Top

2002

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22 November 2002INES category 2

Tihange, BEL

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Tihange

Although the reactor was shut down and no longer critical at that time, the reactor was still producing heat due to decay heat, which is dissipated by circulating the coolant in the primary circuit, as in power operation. A test opened a safety valve on the pressurizer by mistake, causing the pressure in the primary circuit to drop from 155 bar to 85 bar in a very short time. The high pressure in the primary circuit during operation means that the water does not boil, even at high temperatures, but remains in the liquid state. However, if the pressure drops, the boiling temperature of the water decreases and it changes to the gaseous state. Then the decay heat of the fuel elements can no longer be transported away and there is a risk of core meltdown. In this case, however, due to the rapid pressure drop, several safety systems were activated, feeding water into the reactor and thus further cooling the fuel elements. The pressure relief valve, which had been opened by mistake, was only closed again after three minutes due to communication problems.

-

Nuclear power accidents by country#Belgium

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tihange_(Belgien)

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08 March 2002INES category 3

Davis Besse, Ohio, United States

March 08, 2002 - Severe corrosion on the control rod forced the Davis-Besse reactor into a 24-month shutdown.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Davis_Besse#St%C3%B6rf%C3%A4lle

In March 2002, a long-delayed inspection revealed that boric acid had leaked from the reactor near a control rod duct on the reactor pressure vessel cover. The boric acid is used to control the reactor and is added to the coolant. However, the acid reacts very aggressively to heavy metals. As a result, there was severe corrosion on the reactor lid, so that only a few millimeters thin layer of the inner lid lining remained. Experts at Oak Ridge National Laboratory then calculated that in the worst case, it would have taken another five months for a large leak to form in the reactor head...

-

Nuclear power accidents by country#United_States

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Davis-Besse_(USA)

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21 January 2002INES category 2

Flamanville, FRA

Control systems and safety valves failed after improper installation of condensers, forcing a two-month shutdown.

Nuclear Power Accidents.pdf

-

Wikipedia

Flamanville Nuclear Power Plant

On January 21, 2002, incorrect installation of condensers caused failures in the control system and safety valves. The cost of the incident is estimated at $119 million.

- -

AtomkraftwerkePlag

Flamanville Nuclear Power Plant - Block 2

On January 21, 2001 (?) a process control system failed in Flamanville-2 due to an error during maintenance work. A chain of irregularities and damage to various systems followed ...

 

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Sources A year earlier One year later Top

2001

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14 December 2001

Brunsbuettel, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Brunsbüttel

Serious incident at the Brunsbüttel NPP. As it became known only a few months later, a hydrogen explosion had occurred in the immediate vicinity of the reactor pressure vessel. The supply line for cooling the reactor cover with a diameter of 100 mm was torn over a length of 2 to 3 meters. There was a risk that splinters could damage the containment by passing the splinterguard. The operator HEW tried to cover up the incident as far as possible. For example, it was only reported to the responsible ministry as "spontaneous seal leakage". Only after two months did the supervisory authorities manage to inspect the “leak” while the reactor was shut down, and the extent of the incident was discovered, despite a violent dispute with the operator. If the reactor had been shut down according to regulations immediately after the explosion, the operator would have had to buy additional electricity for several million euros at the beginning of winter.

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Brunsb%C3%BCttel_(Schleswig-Holstein)

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16 November 2001

HFR Petten, NLD

(INES - Classification!)

-

Wikipedia

Institute of Energy

As part of the EURATOM treaty, the Netherlands and the then EURATOM Commission signed the treaty establishing the European research center in 1961, which was opened in Petten in 1962. It took over the high-flux reactor for materials research that had gone into operation the previous year and is now used primarily for the production of medical isotopes...

According to the report of the former IE director Frans Saris, on November 16, 2001 there was an officially concealed incident (Station Blackout = total power failure) at the High Flux Reactor, in which one was only just about to meltdown. Due to a failure of the external power supply, the pumps that are used to cool the reactor were suddenly without power. After that, the emergency power supply also failed, and due to the inadequate power supply, the operators had great difficulty opening a valve that is used for passive emergency cooling ...

- -

AtomkraftwerkePlag

Netherlands

In 1955 the construction of the High Flux Reactor (HFR) in Petten was started, with which one wanted to gain experience with atomic energy ...

In December 2021, the new government announced that it would build two new nuclear power plants and provide five billion euros for them. In addition, the term of the Borssele nuclear power plant is to be extended. The reasons given were climate change and an increase in the security of supply with energy ...

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INES category 212 August 2001

Philippsburg, GER

A deviation from the prescribed boron concentration was reported to the authorities. In addition, the liquid level had not reached the value stipulated in the start-up operating instructions and was only implemented with a delay. Subsequent investigations revealed that significant deviations from the commissioning requirements and violations of the relevant instructions have probably been common for several years and also occur in other nuclear vehicles.

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Philippsburg_(Baden-W%C3%BCrttemberg)

Philippsburg II was started up in August 2001 with a defective emergency cooling system. Although the defect was discovered two weeks later, the reactor continued to operate unlawfully. It was later determined that the emergency cooling system had not been sufficiently filled for years. It should be added that the operator did not report this incident from 2001 to the supervisory authority. In November 2001, the Stuttgart Ministry of the Environment reported that contaminated water had leaked out of Philippsburg I due to a defect in a fitting for company drainage...

- -

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Philippsburg

At the Philippsburg nuclear power plant, the operating team failed to see that the emergency cooling system did not meet the requirements of the operating manual when block 2 was started up. The emergency cooling system was sufficient to cool the cold and uncritical reactor. After restarting the reactor, the emergency cooling system was upgraded to the extent required by the limit values. However, the incident mentioned below occurred. The coolant, which is buffered in the flood tanks (emergency cooling system) of the nuclear power plant, fell below the permissible boron concentration. Three of the four existing containers were affected. As a result of these events, the power plant manager and two board members of the operator EnBW lost their jobs.

 

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Sources A year earlier One year later Top

2000

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05 July 2000INES category 0

Grafenrheinfeld, GER

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Grafenrheinfeld

At the Grafenrheinfeld nuclear power plant, there was a fire in the motor of the main coolant pump, which is located in the immediate vicinity of the reactor pressure vessel. (INES level 0)

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Grafenrheinfeld_(Bayern) 

- -

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26 June 2000INES category 1

Grafenrheinfeld, GER

(INES - Classification!)

-

Wikipedia

On June 26, 2000, an INES stage 1 incident occurred at the Grafenrheinfeld nuclear power plant. Technical defects were found in five of eight control valves that had been installed the year before.

https://de.wikipedia.org/wiki/Kernkraftwerk_Grafenrheinfeld

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Grafenrheinfeld_(Bayern)

*

We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

***


Sources A year earlier One year later Top

Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1999

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27 December 1999INES category 2

Blayais, FRA

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Blayais

In the four-block Blayais nuclear power plant not far from Bordeaux on the Atlantic, storm Lothar flooded the area and caused a partial failure of the external power supply. Two blocks had to be cooled down using the emergency diesel generator sets. In addition, some of the emergency cooling and component cooling pumps were flooded and would not have been operational if required (sources: EDF, ASN) INES level 2

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Nuclear power accidents by country#France

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Blayais_(Frankreich)

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INES category 430 September 1999

Tokaimura, JPN

(INES - Classification!)

Workers at the Tokaimura uranium processing plant tried to save time and put too much uranium into a preparation tank (16,6 kg instead of 2,3 kg). Two people died and 1.200 were injured.

Nuclear Power Accidents.pdf

-

Wikipedia

Tokaimura nuclear accident in 1999

... To speed up the process and thus save money, that day the plant workers filled the precipitation vessel with 16,6 kg of uranium instead of the permitted 2,4 kg - a sixfold excess. The critical mass, which in this case was 5 kg, was significantly exceeded, resulting in an explosive accumulation of fission neutrons. This inevitably led to an uncontrollable chain reaction, which the workers perceived as a "blue flash" (Cherenkov light) accompanied by a loud bang. The workers who were involved in the work processes at that time had not been informed or only partially informed about the dangers of the criticality.

The nuclear chain reaction released gamma and neutron radiation over a period of 20 hours...

The number of people who received increased doses of radiation is given as 35 to 63. Three workers were exposed to particularly high levels of radioactivity of up to 17 sieverts. Around 300.000 residents were asked not to leave their homes. This accident is officially rated INES 4, but by some scientists INES level 5. 

Two workers died as a result of the increased radiation ...

-

Nuclear power accidents by country#Japan

- -

AtomkraftwerkePlag

Tokaimura, Japan

On September 30, 1999, the most serious nuclear accident in Japan to date occurred in the Tokaimura fuel element factory in Japan. Two workers, who had not been informed of the dangers of highly enriched uranium by the operator JCO, had filled a uranium solution with steel buckets and by hand in too large a quantity into a tank and used "spoon-like devices" for mixing. In order to save time during production, the operator changed a procedural regulation without the knowledge of the nuclear supervisory authority and the work steps were shortened ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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18 June 1999INES category 2

Shika, Ishikawa, JPN

A control rod malfunction triggered an uncontrolled nuclear reaction in unit 1 of the Shika nuclear power plant. Amount of damage approx. US$ 39,6 million

Nuclear Power Accidents.pdf

-

Wikipedia

Shika Nuclear Power Plant

On June 18, 1999, an incident occurred in which three control rods were removed from the core instead of inserting one. This meant that the reactor could no longer be controlled for 15 minutes. All of this only became known on March 15, 2007, the authorities had not been informed.

-

Nuclear power accidents by country#Japan

- -

AtomkraftwerkePlag

Akw Shika (Japan)

From 1992 and 2005, two boiling water reactors with 540 and 1.206 MW capacity were operated in Shika. After the severe earthquake on July 16, 2007 off the west coast of Japan, the two reactors were retrofitted in December 2007 for safety reasons. On March 18, 2009, a lawsuit filed by Japanese citizens due to safety concerns and the aim of shutting down Shika-2 was dismissed in the second instance ...

Accident

In June 1999, three of 1 control rods on the Shika-89 unit slipped from their normal positions, setting off an uncontrolled nuclear fission chain reaction. This event, which the operator kept secret until 2007, was eventually classified as an INES level 2 incident. The reactor was therefore shut down from March 2007 to mid-May 2009. The incident was traced to an error in a manual...

 

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Sources A year earlier One year later Top

1998

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of testsMay 28 and 30, 1998Nuclear weapons proving ground

Pakistan detonates 6 nuclear bombs underground

Ras Koh

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Wikipedia

https://de.wikipedia.org/wiki/Streitkr%C3%A4fte_Pakistans

According to its own statements, Pakistan successfully carried out six nuclear tests on May 28th and 30th, 1998 (as a reaction to the 5 Indian tests on May 11th and 13.05.1998th, XNUMX). However, based on the seismic signals, experts assume that only two tests were actually carried out ...

-

https://de.wikipedia.org/wiki/Pakistanisches_Atomprogramm

-

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

-

https://de.wikipedia.org/wiki/Atommacht

- -

Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten/pakistan.html

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests11. to 13. May 1998Nuclear weapons proving ground

India detonates 5 nuclear bombs underground

Pokhran

-

Wikipedia

https://de.wikipedia.org/wiki/Kernenergie_in_Indien#Milit%C3%A4rische_Nutzung

The first nuclear charge had an explosive force of 43 kilotons of TNT equivalent and was detonated on May 11, 1998 at the army base near Pokhran (Rajasthan) in the Thar desert for test purposes, 4 further tests were also carried out in Pokhran on May 13.

-

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

-

https://de.wikipedia.org/wiki/Atommacht

- -

Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten/indien.html

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1998 INES category 1 - 3

NPP Doel or Tihange, BEL

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Doel

Belgium is one of the few Western European countries that, like the USA, examines its accidents with the help of so-called precursor analyzes for risk relevance. The supervisory authority AVN also uses the probability calculation. The most serious incident was a complete brief failure of the component cooling in an unspecified block of the Doel or Tihange nuclear power plant sites. Many of the operational and safety systems rely on other systems (the failed ones) for cooling to function, illustrating the magnitude of this failure.

-

https://de.wikipedia.org/wiki/Kernkraftwerk_Tihange

-

Nuclear power accidents by country#Belgium

- -

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tihange_(Belgien)

-

https://atomkraftwerkeplag.fandom.com/de/wiki/Doel_(Belgien)

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1998 INES category 2

Bilibino in Siberia, RUS

-

Wikipedia

An INES 2 incident occurred in 1998 at the Bilibino nuclear power plant.

https://de.wikipedia.org/wiki/Kernkraftwerk_Bilibino

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Bilibino_(Russland)

 

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Sources A year earlier One year later Top

1997

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11 March 1997INES category 3

Tokaimura, JPN

At least 37 workers were exposed to increased levels of radiation after an explosion at the plant. ...

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Tokai_(Ibaraki)

On March 11, 1997, a fire in the fortification plant caused the worst nuclear accident in Japan to date. 37 workers were contaminated. A week later, in the town of Tsukuba, 60 kilometers away, “drastically increased levels of the radioactive gamma-ray emitter cesium in rainwater” were found. According to Georg Blume, Japan's "most influential politician" at the time, Seiroku Kajiyama (LDP), said: "'We have placed too much trust in the nuclear industry for more than forty years.'" The accident was finally classified according to level three of the international rating scale for nuclear events. .

-

Nuclear power accidents by country#Japan

- - 

AtomkraftwerkePlag

http://de.atomkraftwerkeplag.wikia.com/wiki/Tokaimura,_Japan_1999

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

 

***


Sources A year earlier One year later Top

1996

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1996 INES category 1 - 3

Oskarshamn 1, SWE

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Oskarshamn

In this system, the core jacket had to be replaced due to a tear in its circumferential seam of almost the circumference. The core jacket is part of the internals of the reactor vessel. Its rupture could make it impossible to shut down the reactor quickly. (Sources: IAEA, SKI)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Oskarshamn_(Schweden)

 

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Sources A year earlier One year later Top

1995

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1995 INES category 1 - 3

Trillo, ESP

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Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Trillo

During inspections, it was found that half of the strands of the sump recirculation of the emergency cooling were blocked with foreign objects. According to the authority CSN, it was a matter of incorrect dispositions in the construction phase eight years ago, with which the supplier Siemens-KWU was also responsible (source: NRC-NUREG 0933)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Trillo_(Spanien)

 

***


Sources A year earlier One year later Top

1994

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ines210 December 1994

Pickering, Ontario, CAN

(INES - Classification!)

-

Ontario's Nuclear Generating Facilities - English - PDF file

Page 8 - Safety Issues at the Pickering “A” Nuclear Station

Translate with https://www.DeepL.com/Translator (free version)

- - 

Information on this accident and other similar incidents is available in German Wikipedia not or no longer to be found.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia - English

Pickering Incidents 

On December 10, 1994, an accident involving loss of coolant occurred. The Senate Standing Committee on Energy, Environment and Natural Resources called it the deadliest accident in Canadian history (June 2001). The emergency core cooling system was deployed to prevent a core meltdown...

Translated with https://www.DeepL.com/Translator (free version)

Nuclear power accidents by country#Canada

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Pickering_(Kanada)

The grassroots organization Sierra Club Canada protested against the lifetime extension in 2013 and called for the nuclear power plant to be shut down immediately due to aging, increasing radiation and increasing release of tritium. In June 2010, for example, unexpected beta-gamma radiation from reactors 5 to 8 was released into water...

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March 1994

Biblis A, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Biblis

In March 1994, the engine of a main coolant pump caught fire in Biblis A inside the containment because a short circuit had occurred due to a chisel forgotten in the engine during maintenance work....

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Biblis_(Hessen)

- -

---------------------------------------------------------------------------

1994 INES category 1 - 3

Dukovany, CZE

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Dukovany

An electrician's mistake in maintaining the grid led to the disconnection of all four reactor blocks from the grid. After load shedding, two of the blocks reached production for their own use, the other two failed to follow this procedure and had to be supplied by their emergency diesel generators after an emergency shutdown. One of the diesels did not start automatically and had to be started manually on site. There were also a large number of smaller malfunctions (source: SKI-Report IRS)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Dukovany_(Tschechien)

 

***


Sources A year earlier One year later Top

1993

---------------------------------------------------------------------------

06 April 1993INES category 4

Tomsk 7, Seversk, RUS

(INES 4 | NAMS 4,8)

-

Wikipedia

https://de.wikipedia.org/wiki/Kerntechnische_Anlage_Tomsk

Large amounts of short-lived radioactive substances were released as a result of an accident in the reprocessing plant of the Tomsk nuclear facility (mainly used for the production of weapons-grade plutonium). As a result, one hundred square kilometers in the Seversk Oblast (also known as Tomsk-7) were contaminated. (INES level 4)

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Sewersk/Tomsk-7,_ehemalige_Sowjetunion_1993

 

*** 


Sources A year earlier One year later Top

1992

---------------------------------------------------------------------------

28 June 1992INES category 2

Barsebäck-2 NPP, SWE

(INES - Classification!)

A leaking valve in the Barsebäck boiling water reactor automatically triggered safety functions such as reactor shutdown, high-pressure safety injection, core spray and containment spray systems. The jet of steam from an open safety valve hit thermally insulated equipment. The insulation material was swept into the suppression pool, affecting the core's emergency cooling system, which is essential for heat removal in the event of a reactor coolant leak. Similar incidents occurred in several countries, and it turned out that the problem affected many, if not most, of the world's light water reactors.

Nuclear Power Accidents.pdf

-

Wikipedia

Barsebäck nuclear power plant

The closed Barsebäck nuclear power plant is located in Barsebäck in the municipality of Kävlinge in Scania, Sweden.

... The reactors had been in commercial operation since July 1, 1975 and July 1, 1977, respectively.

Because it's only 20 kilometers from the Danish capital Copenhagen, the Danish government pushed for the nuclear power plant to be the first to be shut down in the wake of Sweden's nuclear phase-out...

- - 

AtomkraftwerkePlag

Barsebäck (Sweden)

risks and incidents

The Barsebäck nuclear power plant was considered particularly dangerous in neighboring Denmark, as it is only 20 km away from its capital Copenhagen on the other side of the Öresund. The Öresund is one of the busiest waterways in Europe and Copenhagen Airport's approach path is close to the nuclear power plant.

On July 28, 1992, hot steam shot out of a defective valve into the reactor hall at Barsebäck-2, taking with it large quantities of rock wool that had been used as insulation. The rockwool clogged all the filters in the emergency cooling system within 20 minutes, a time that nobody expected. Fortunately, Sweden avoided a serious accident because the normal cooling worked. The incident resulted in the temporary closure of Barsebäck I and II, Oskarsham I and II and Ringhals as well as expensive conversion work. As has been the case several times before, Denmark has called for the closure of Barsebäck.

In May 1999, the water cooling in reactor 2 was removed due to an operator error. The 1992 and 1999 incidents were both categorized as INES level 2 incidents.

In the years 2002/2003 concentrations of radionuclides in sea plants were discovered at different distances from the Barsebäck site.

 

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1991

---------------------------------------------------------------------------

10 July 1991INES category 3

Bilibino, RUS

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Bilibino

There was a leak as a result of the transfer of liquid high-level radioactive waste to a warehouse. Not only the Akw building and the means of transport were contaminated, but also the premises of the head office.

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Bilibino_(Russland)

 

***


Sources A year earlier One year later Top

1990

---------------------------------------------------------------------------

1990INES category 2

Leibstadt, CHE

(INES 2)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Leibstadt

When starting up this reactor - located on the German border - it was noticed after three hours at an output of 20% that the emergency shutdown would not work if requested. The reactor was slowly shut down with the control rod motors. The authority HSK classified the incident with INES level 2.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Leibstadt_(Schweiz)

*

We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

***


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Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1989

---------------------------------------------------------------------------

1989INES category 3

Vandellòs-1, ESP

(INES 3)

A fire at the Vandellòs nuclear plant severely damaged the safety systems. As a result, Vandellòs 1 was definitively shut down as a result of a political decision by the Spanish government.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Vandellos

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Vandellos_(Spanien) 

- -

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1989INES category 1 - 3

Krsko, SVN

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Krsko

As a correct reaction to an operational malfunction, a valve to relieve the pressure in the reactor circuit opened due to the pressure. After dissipating the pressure transient, it unexpectedly got stuck in the open position. Due to the associated loss of cooling water, the emergency cooling switched on automatically. After about 15 minutes, the valve did close and the emergency cooling system refilled the reactor circuit to some extent.

Slightly radioactive water had to be removed from the containment swamp after the accident by dumping it into the neighboring river...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Krsko_(Slowenien)

 

***


Sources A year earlier One year later Top

1988

---------------------------------------------------------------------------

18 June 1988

Tihange-1 NPP, BEL

(INES - Classification!)

On June 18, 1988, during the operation of the pressurized water reactor, a sudden leak occurred in a short section of the ECCS (Emergency Core Cooling System) pipeline that could not be isolated. The leak rate was in the order of 1.300 liters per hour. The cause of the leak was a crack in the wall of the pipeline measuring 9 cm on the inside and 4,5 cm on the outside. The risk of a pipe rupture in the emergency cooling system is considerable when the emergency injection system is activated, since large quantities of cooling water are injected if coolant is lost.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Tihange 

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tihange_(Belgien)

- -

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12 May 1988INES category 2

Civaux-1, FRA

The Civaux-1 pressurized water reactor was shut down for five days when, during start-up tests, a 25 cm diameter pipe of the main residual heat removal system ruptured and a large leak (30.000 liters per hour) occurred in the primary cooling circuit. The reactor core must be continuously cooled, even when shut down, to dissipate the significant amount of residual heat from the fuel. It took nine hours to isolate the leak and achieve a stable situation. An 18 cm long crack was found at a weld and 300 m³ of primary coolant had leaked into the reactor building. Prior to the incident, the reactor block had only been in operation for six months at a maximum of 50% capacity.

The operator EDF suggested classifying the event as level 1 on the INES scale, but the safety authorities opted for level 2.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Civaux 

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Civaux_(Frankreich)

 

***


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1987

---------------------------------------------------------------------------

16 December 1987INES category 1

Biblis A, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Biblis

When the reactor was started up, a valve that had to shut off a connecting line to the reactor circuit, which was under 150 times atmospheric pressure, got stuck and remained open. Only after 15 hours did the operating personnel take the warning lamp seriously, as the control logic of the lamp was considered defective. The personnel did not shut down the reactor immediately, but opened a second, redundant safety valve to flush out the stuck valve and thus close it. The valve did not close and 107 liters of radioactive cooling water ran into the annulus. The accident only became public after a year through an article in an American trade journal (Nucleonic Weeks), but the operator reported it to the authorities in good time, which in turn did not publish a press release. The incident was later classified as level 1 (disruption) according to the INES scale...

-

Nuclear power accidents by country#Germany

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Biblis_(Hessen)

 

***


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1986

---------------------------------------------------------------------------

1986INES category 1 - 3

Mühleberg, CHE

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Mühleberg

In the Chernobyl year of 1986, an independent physics teacher took dose measurements in the vicinity of the Mühleberg nuclear power plant. To his amazement, the readings were unusually high one day. The operator had to admit filter damage, which led to releases just below the limit value. Allegedly, neither the operator nor the HSK supervisory authority registered this release. The values ​​are still slightly higher today...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/M%C3%BChleberg_(Schweiz)

- -

---------------------------------------------------------------------------

May 04-05, 1986INES category 0

THTR 300, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_THTR-300#Probleme_und_St.C3.B6rf.C3.A4lle

Unknown amounts of radioactive aerosols escaped from the nuclear power plant THTR-300 in Hamm-Uentrop. Broken spherical fuel elements clogged the pipes of the charging system and attempts were made to blow these pipes free again with high gas pressure (helium). The existing measuring devices were switched off at the time of the incident, so nothing is known about the exact amounts. Further attempts to clear the pipes resulted in all the jammed balls breaking and parts of the system being bent. The reactor was temporarily shut down. On September 1, 1989, the decommissioning of the THTR-300 was decided due to disagreements about further funding. 

-

Nuclear power accidents by country#Germany

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Hamm-Uentrop_(Nordrhein-Westfalen)

-

See: The accident

-

MIRROR article 'Sparkling eyes'

- -

---------------------------------------------------------------------------

26 April 1986INES category 7

Chernobyl, USSR

(INES 7 | NAMS 8)

There were about 5,2 million TBq released by radioactive radiation.

-

Wikipedia

https://de.wikipedia.org/wiki/Nuklearkatastrophe_von_Tschernobyl

In a super-GAU (INES level 7) in Block 4 of the Chernobyl Akw in Ukraine, there was a meltdown and, as a result, explosions. Large amounts of radioactivity were released through exposure and fire of the reactor core, the immediate area was heavily contaminated; in addition, there were numerous direct radiation victims among the auxiliary workers. The worst case scenario was proven by radioactivity measurements and fallout in Sweden and other European countries. A large restricted area was established and the area evacuated. The number of people harmed varies considerably depending on the study. The fact that the accident has resulted in unexpectedly few victims so far (according to the IAEA) is partly due to the fact that the violent graphite fire carried large parts of the radioactivity directly and up into the atmosphere and that the wind was blowing largely in the direction of less populated regions before the evacuation of larger cities such as Prypiat .

- - 

AtomkraftwerkePlag

On April 26, 1986, the INES level 4 catastrophic accident occurred in Chernobyl reactor 7, during which, after a core meltdown and hydrogen explosions, large amounts of radioactive substances leaked into the environment and the atmosphere ...

https://atomkraftwerkeplag.fandom.com/de/wiki/Tschernobyl_(Ukraine)

- -

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06 January 1986INES category 4

Cimarron Fuel Fabrication Site, Oklahoma, United States

-

Wikipedia

https://en.wikipedia.org/wiki/Kerr-McGee

At the Kerr-McGee reprocessing facility in Gore, Oklahoma, a cylinder of nuclear material broke after being heated improperly. One worker died and 100 had to be hospitalized. (INES level 2-4)

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


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1985

---------------------------------------------------------------------------

10 August 1985INES category 5

K-431 nuclear submarine, Vladivostok, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Echo-Klasse#K-31

In the Chazhma Bay near Vladivostok, a serious accident occurred while the fuel element was being replaced on the nuclear-powered submarine K-314. When the reactor lid was replaced, improper handling led to a spontaneous chain reaction. The cooling water evaporated suddenly and the reactor core was thrown onto the pier by the explosion. 29 people received high doses of radiation, another 10 people died from a fatal dose of neutrons. The radioactive cloud did not reach Vladivostok, 55 kilometers away, but further victims of this accident (long-term cancer) cannot be ruled out in closer places. (INES level 5)

- -

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10 July 1985

Rainbow Warrior - Port of Auckland, New Zealand

Greenpeace

Rainbow Warrior I - the legend

After the conversion to a combined sail-motor drive, the ship set off towards the Pacific in the mid-1980s. From Hawaii we go to the Marshall Islands, medical supplies for the population of the archipelago are stored in the hull of the ship, because the US military has been conducting nuclear tests in the South Pacific since the 50s. Cancer cases, a consequence of radioactivity, are now increasing among the residents. In May 1985, the crew landed on the heavily radiation-contaminated Pacific island of Rongelap. Their residents had asked Greenpeace for help. The Rainbow Warrior takes around 300 people on board and relocates them to another island.

A few weeks later there was a scandal. The Greenpeace flagship anchored in the port of Auckland in New Zealand after its South Seas mission. On July 10, 1985, two bombs detonated on the ship's hull, tearing a huge hole in the ship's side. The Rainbow Warrior sinks immediately. The crew escapes to shore, Greenpeace photographer Fernando Perreira dies...

- - 

Wikipedia

Sinking the Rainbow Warrior

The Greenpeace ship Rainbow Warrior was sunk by French Service Action agents in Auckland, New Zealand, on July 10, 1985...

On the evening of July 10, 1985, divers from the French secret service attached two bombs to the hull of the ship. A meeting of Greenpeace activists took place on board at the same time. The first bomb detonated at 23:38 p.m. after the meeting was already over. However, the crew was still on the ship. Shortly thereafter, the second explosion followed, which caused the Rainbow Warrior to sink. Of the twelve crew members, the Dutch-Portuguese Greenpeace photographer Fernando Pereira drowned... 

Dubbed "Operation Satanique" by the French secret service, the operation was financed from the "fonds speciaux", a sort of official "black box" that only the President of the Republic can access...

- - 

The search engine Ecosia is planting trees!

Keyword Search: Rainbow Warrior

https://www.ecosia.org/search?q=Rainbow%20Warrior

- -

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09 June 1985INES category 4

Davis Besse, Ohio, United States

June 09, 1985 - In June 1985, a potentially catastrophic 12-minute loss of coolant shut down the power plant for more than a year. The NRC described the accident as the worst since Three Mile Island.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Davis_Besse#Störfälle

On June 9, 1985, when the cooling system of the 'Kkw Davis Besse 1' was commissioned, there was a malfunction in a pump which, due to incorrect operation by an operator, was running at too high a speed. To counteract this, the delivery rate was throttled. Shortly thereafter, there was overpressure at another pump. The operators turned off the pump. However, this stopped the circulation of the coolant flow. To counteract this, an operator activated the emergency feedwater pumps. The event was first classified as “extraordinary”; later, the incident was investigated more closely and it was found that a near meltdown (melting of the reactor core) had occurred. According to estimates by the IAEA, the incident was to be rated at least INES 4, i.e. "accident".

-

Nuclear power accidents by country#United_States

- - 

Sierra Club

DAVIS BESSE NUCLEAR REACTOR

The Davis-Besse nuclear reactor is located on Lake Erie in Oak Harbor, Ohio, 20 miles east of Toledo. It is a commercial nuclear power plant with an output of 894 megawatts. In 2015, the Nuclear Regulatory Commission (NRC) granted FirstEnergy a license extension to operate Davis-Besse 20 years beyond its design lifespan of 40 years. The generation of high-level radioactive waste at Davis-Besse will increase by approximately 30 tons per year.

ACCIDENTS AND INCIDENTS: Davis-Besse has experienced accidents and violations since before it was put into operation.

In 1972, strong winds caused the lake's water to flood the site for a month. Recurrence during operation of the reactor could have catastrophic consequences.

Six of the 34 "major accidents" in the United States occurred at Davis-Besse.

In October 1977, a pilot operated pressure relief valve opened in an incident nearly identical to the cause of the 1979 Three Mile Island (TMI) meltdown. Had the NRC then asked all similar pressurized water reactors to fix this problem, the TMI incident could have been avoided.

In June 1985, a potentially catastrophic 12-minute loss of coolant shut down the plant for more than a year. The NRC described the accident as the worst since Three Mile Island.

The direct impact of a tornado in 1998 resulted in the total loss of external power, destroying the alarm, communications and emergency systems. A meltdown threatened...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Davis-Besse_(USA)

 

***


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1984

---------------------------------------------------------------------------

17 July 1984INES category 3

Sellafield, GBR

(INES 3 | NAMS 1,8)

There were about 2,9 TBq released by radioactive radiation.

A solvent fire in the sludge tank of the sewage treatment plant in building B241 was caused by dripping hot metal during cutting work.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


Sources A year earlier One year later Top

1983

---------------------------------------------------------------------------

11 November 1983INES category 3

Sellafield, GBR

Accidental transfer of 59 TBq of radioactivity with solvents and raw materials from building B205 to a sea tank in building B242.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

1983INES category 1 - 3

Doel 1 and 2, BEL

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Doel

After the failure of the 380 kV network and strong voltage fluctuations in the reserve network, an emergency power situation occurred in the two oldest Doel blocks. Four diesel generators started, but could not guarantee the necessary supply for cold start due to errors. As a last reserve, an electricity-independent cooling system, driven by the steam of the decay heat, came into action in both reactor blocks until the power supply was restored after about an hour (source: SKI Report IRS)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Doel_(Belgien

- -

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23 September 1983INES category 4

Centro Atomic Constituents, Buenos Aires and, ARG

On September 23, 1983, a nuclear meltdown occurred in the Constituyentes nuclear center due to an operator error during the reconfiguration of the RA-2 research reactor, in which a total of 18 people were irradiated; one of the reactor technicians died two days later from the radiation damage he had suffered.

Nuclear Power Accidents.pdf

-

Wikipedia - it

Accident nuclear reactor RA-2

The RA-2 nuclear accident that occurred in Argentina on Friday, September 23, 1983 stems from serious human operator error that triggered a power excursion at the RA-2 research reactor. The reactor was located in the Centro Atómico Constituyentes, a department of the Comisión Nacional de Energía Atómica (CNEA). This is the deadliest accident in the history of Argentine nuclear development, and the technician in charge of the tests died. In addition, 17 other people were exposed to varying degrees of radiation, depending on their distance from the scene of the accident...

 Translated with https://www.DeepL.com/Translator (free version)

- - 

Spiegel 17/1987

»A cold shiver runs down my spine«

SPIEGEL report on hidden nuclear power plant incidents around the world

Humanity has slipped past the catastrophe several times by a hair's breadth. This is revealed by 48 accident reports that were kept secret by the Vienna International Atomic Energy Agency: breakdowns, often of the most bizarre, profane kind from the United States and Argentina to Bulgaria and Pakistan ...

- -

---------------------------------------------------------------------------

30 June 1983

Embalse, ARG

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Embalse

On June 30, 1983, a serious incident occurred in the nuclear power plant (overheating of the cooling circuit), which, however, could be brought under control by employees. In 1986 there was another incident when heavy water came out of the power plant. Both incidents were kept secret by those responsible for a long time, only the International Atomic Energy Agency (IAEA) was informed. The operators were obviously able to prevent an INES classification. It was only through research that the media managed to bring the incident to the public.

Up to 2007 there had been a total of ten incidents at Akw Embalse ...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Embalse_(Argentinien)

Prevented GAU 1983 and other incidents

On June 30, 1983, an incident occurred that those responsible kept secret from the public: According to "Spiegel", the secondary circuit collapsed after several pumps failed and due to operating errors, the water continued to heat up, radioactive steam and hot water shot out a defective auxiliary valve. After more than three hours, all valves could be closed with improvised measures, a GAU was just prevented ...

 

***


Sources A year earlier One year later Top

1982

---------------------------------------------------------------------------

01 September 1982INES category 5

Chernobyl, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Tschernobyl

On September 1, 1982, a central fuel assembly was destroyed by overheating as a result of operator error. Significant amounts of radioactivity escaped, the radioactive gases reached the city of Pripyat. During the repair, several workers were exposed to a significantly higher dose of radiation, and the accident is listed as category INES 5.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tschernobyl_(Ukraine)

 

***


Sources A year earlier One year later Top

1981

---------------------------------------------------------------------------

01 October 1981 INES category 3

Sellafield, GBR

(INES 3 | NAMS 1,3)

Reprocessing of fuel assemblies that had been cooled for only 27 days resulted in the release of 0,9 Tbq of radioactive iodine ...

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

In November 2001, a study on the possible toxic effects of the reprocessing plants in La Hague (France) and Sellafield was published by the European Parliament, written by WISE/Paris under the direction of Mycle Schneider. Their conclusion was that up to this point in time both sites had the highest human-caused release of radioactivity, comparable to a major nuclear accident every year. The release of radioactive substances was possibly twice that after the Chernobyl disaster. A significant increase in leukemia cases was observed in the vicinity of both sites; it is considered possible that the radioactive emissions from both plants contributed to this. Significant concentrations of radionuclides in food, sediment, flora and fauna have been detected at Sellafield. Carbon-14, caesium-137, cobalt-60, iodine-129, plutonium, strontium-90, technetium-99 were found, the latter with a half-life of 214.000 years...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- -

---------------------------------------------------------------------------

22 May 1981INES category 3

La Hague, FRA

In La Hague there was a catastrophic fire in a waste storage facility with graphite elements and uranium metal, Workers were exposed to increased levels of radiation.

Nuclear Power Accidents.pdf

-

La Hague reprocessing plant

The highly active substances treated in this reprocessing plant constantly release explosive hydrogen, which threatens the tightness of the building when it reacts with oxygen. To avoid an explosion, the air in the building is freed from hydrogen by continuous circulation. For 3,5 hours, this circulation only worked in normal operation, both reserve air lines were not operational due to defects or maintenance work.

Greenpeace, under the supervision of a sworn technical expert, determined ... 400 cubic meters of radioactive waste water were flushed daily through a four and a half kilometer pipe into the Alderney Strait via Herqueville. This operation is legal, since only the dumping of barrels with nuclear waste in the sea is prohibited, but direct discharge is not ...

-

A number of accidents and releases of radioactivity are in the Wikipedia not or no longer to be found.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

https://en.wikipedia.org/wiki/La_Hague_site

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

La Hague (France)

World's largest reprocessing plant

There have been a number of incidents in La Hague since it went into operation.

A study published by the European Parliament in 2001 lists events from 1989 to 2011 that were reported by the operator. Eight accidents were described in more detail ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


Sources A year earlier One year later Top

1980

---------------------------------------------------------------------------

22 September 1980INES category 3

Sellafield, GBR

(INES 3 | NAMS 1,6)

Corrosion in the B38 building Magnox storage silo resulted in the release of 2 Tbq of plutonium ...

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

13 March 1980INES category 4

Saint-Laurent, FRA

A faulty cooling system has fused fuel bundles in the Saint Laurent A2 reactor, forcing an extended shutdown. Partial nuclear meltdown with 20 kg of uranium, the repairs took years...

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Saint-Laurent

The partial melting of a few fuel elements led to contamination of the reactor building (INES level 4). The first two reactors built at St. Laurent were graphite-moderated and gas-cooled. The emergency cooling was therefore not carried out with water, but with air drawn in from the factory environment. The reactor continued to operate for a while after repairs.

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Saint-Laurent_(Frankreich)

*

We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

***


Sources A year earlier One year later Top

Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1979

---------------------------------------------------------------------------

1979INES category 1 - 3

Doel 2, BEL

- - 

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Doel

The breakage of a steam generator heating pipe resulted in a slight release of radioactivity into the environment. The control of this incident requires the correct handling of complicated procedures by the personnel. The four nuclear power plants in Doel are only 8 km from Antwerp (source: NEA-OECD)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Doel_(Belgien)

- -

---------------------------------------------------------------------------

11 September 1979INES category 4

Sellafield, GBR

(INES 4 | NAMS 3,4)

When radioactive waste water was transported to building B242 130 TBq plutonium released.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

16 July 1979INES category 3

Sellafield, GBR

(INES 3 | NAMS 1,9)

In a remote gutting cave in building B30 were caught in a fire 3,7 TBq released radioactivity.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

---------------------------------------------------------------------------

28 March 1979INES category 5

Three mile island, USA

(INES 5 | NAMS 7,9)

There were about 3,9 million TBq released radioactivity.

Equipment failure and operator error led to the loss of coolant and partial meltdown at the Three Mile Island nuclear reactor.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Three_Mile_Island

On March 28, 1979, an INES level 5 serious accident occurred in reactor block 2 of the nuclear power plant near Harrisburg. There, about half of the inventory in the reactor core melted in a partial meltdown.

-

https://de.wikipedia.org/wiki/Reaktorunfall_im_Kernkraftwerk_Three_Mile_Island

Venting to the environment

... This was done on the one hand by condensers and on the other hand, which was very controversial, by venting into the atmosphere. It is estimated that radioactive gas (in the form of krypton-85; 10,75 year half-life) with an activity of about 1,665 · 10 to the power of 15 Bq was released during the incident.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Harrisburg/Three_Mile_Island_(USA)

 

***


Sources A year earlier One year later Top

1978

---------------------------------------------------------------------------

31 December 1978INES category 4

Beloyarsk, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Belojarsk

In the turbine house of Unit 2 of the Belojarsk NPP, a ceiling plate fell on a turbine oil tank and caused a major fire. 8 people suffered high doses of radiation while organizing the reactor emergency cooling. (INES level 3–4)

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Beloyarsk_(Russland) 

From 1964 to 1979 there was a series of events in Beloyarsk-1 in which fuel channels were destroyed and workers were exposed to increased levels of radiation. In 1977, 50% of the fuel assemblies at Beloyarsk-2 melted down; the staff were exposed to high levels of radioactivity. In a fire that broke out on December 31, 1978 due to a falling cover plate, eight people suffered an increased radiation dose.

Various incidents during breeder operation were also reported in the 1990s ...

- -

---------------------------------------------------------------------------

18 June 1978

Brunsbuettel, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Brunsbüttel

Only two years after commissioning, two tons of radioactive steam escaped into the machine building and subsequently through the roof flaps to the outside due to a blind socket being torn off. Despite this, the reactor continued to run for more than two hours. The operating crew had manipulated the automatic safety system to keep the plant connected to the grid. As a result, the Brunsbüttel NPP stood still for more than two years...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Brunsb%C3%BCttel_(Schleswig-Holstein)

- -

---------------------------------------------------------------------------

13 May 1978

AVR Julich, GER

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/AVR_(Jülich)

A water inrush accident in the Jülich experimental reactor, which was only assigned to the lowest category C at the time, led to a high level of contamination of the cooling circuit and the soil and groundwater under the reactor with strontium-90 and tritium. Critics of the pebble bed reactor concept assume that the far too favorable classification of this event as insignificant in terms of safety from today's perspective served to preserve the development chances of pebble bed reactors ...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Jülich_(Nordrhein-Westfalen)

On May 13, 1978, a serious incident occurred. Water leaked into the reactor due to a leak in a heat exchanger. This had an impact on the demolition of the reactor, because it still contained "197 destroyed or atomized fuel elements", which were then embedded in concrete. Large amounts of strontium-90 and tritium are said to have escaped during the incident and got into the groundwater. Despite this, the reactor continued to operate at an excessively high temperature...

 

***


Sources A year earlier One year later Top

1977

---------------------------------------------------------------------------

24 September 1977INES category 3

Davis Besse, Ohio, United States

September 24, 1977 - A pressure relief valve opened in the primary circuit and steam escaped.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Davis_Besse#Störfälle

On September 24, 1977, a pressure relief valve in the primary circuit opened, causing steam to escape. The control room staff was unable to bring the situation under control for a long time. There was a risk that the core of the reactor could have been exposed and overheated due to the severe loss of coolant. Before this happened, the valve could be closed again. A few years later, the accident was assigned Category 3 on the International Nuclear Event Rating Scale...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Davis-Besse_(USA)

- -

---------------------------------------------------------------------------

10 June 1977

Millstone, USA

(INES - Classification!)

A hydrogen explosion damaged three buildings and forced the shutdown of the Millstone-1 reactor.

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

Millstone

... On June 10, 1977, a hydrogen explosion occurred at Millstone-1; the reactor was shut down.

[...]

and many more incidents...

- - 

Wikipedia

List of nuclear power accidents by country

Millstone is the only nuclear power plant in the US state of Connecticut. It is situated on, and named after, a former quarry on the Atlantic Ocean's Niantic Bay in the City of Waterford. It consists of three reactors, one decommissioned boiling water reactor and two active pressurized water reactor units...

 Translated with https://www.DeepL.com/Translator (free version)

-

Nuclear power accidents by country#United_States

- -

What's wrong with Wikipedia?

The Wikipedia article "Millstone Nuclear Power Plant" contains no reference to the hydrogen explosion of June 10, 1977.

- -

---------------------------------------------------------------------------

22 February 1977INES category 4

Jaslovke Bohunice, SVK

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Bohunice

On February 22, 1977, the plant was severely damaged while being refilled with fuel rods: In the accident, forgotten remnants of the silica gel drying agent included in the packaging led to blockages on a fuel element, so that the coolant could not flow through properly and local overheating occurred. The pressure tube, as well as surrounding technological channels, were damaged. Heavy water entered the gas cooling circuit. Due to the rapid rise in temperature, the coating of the fuel rods in the active zone was damaged. Due to the failure of this barrier, the primary area was contaminated and then parts of the secondary area due to leaks in the steam generators. It was already clear in the first half of 1978 that operations would not be resumed for economic and technical reasons. The federal government decided in 1979 not to resume operations and to shut down the reactor block.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tschechien

- -

---------------------------------------------------------------------------

13 January 1977

NPP Gundremmingen, GER

Due to the unclear situation, this incident was not assigned an INES level!

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Gundremmingen

In cold and damp weather, short circuits occurred on two current-carrying high-voltage lines. The resulting quick shutdown led to control errors. After about ten minutes, the radioactive water in the reactor building of Block A was about three meters high and the temperature had risen to around 80 ° C. At first it was said that the reactor would be able to go back into operation in a few weeks. After the incident, the operators assumed that Unit A would be brought back into operation quickly. However, due to the modernization of the control and safety technology required by politics and supervisory authorities, the operators later decided not to recommission Unit A (category A or E) for economic and political reasons.

-

'Gar Nix' provides further information

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Gundremmingen_A_(Bayern)

- -

---------------------------------------------------------------------------

01 January 1977INES category 5

Beloyarsk, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Belojarsk

In an accident, 50% of the fuel channels in Unit 2 of the Belojarsk NPP, a pressure tube reactor similar to the RBMK, melted. The repair took about a year. The staff was exposed to high levels of radiation. (INES level 5)

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Beloyarsk_(Russland)

From 1964 to 1979 there was a series of events in Beloyarsk-1 in which fuel channels were destroyed and workers were exposed to increased levels of radiation. In 1977, 50% of the fuel assemblies at Beloyarsk-2 melted down; the staff were exposed to high levels of radioactivity. In a fire that broke out on December 31, 1978 due to a falling cover plate, eight people suffered an increased radiation dose.

Various incidents during breeder operation were also reported in the 1990s ...

 

***


Sources A year earlier One year later Top

1976

---------------------------------------------------------------------------

05 January 1976

Jaslovke Bohunice, CS

(INES - Classification!)

Two workers died in an accident due to carbon dioxide escaping from the reactor cooling system of a KS 150 in the Bohunice nuclear power plant.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Bohunice 

On January 5, 1976, radioactively contaminated coolant leaked into the reactor hall. The fuel elements were usually changed under full operation. After replacing a fuel element, it became detached in the pressure tube, shot up out of the reactor into the reactor hall and smashed on the crane standing above the reactor. The pressurized carbon dioxide used as coolant flowed through the open channel into the reactor space. Although the operating team managed to seal the open channel with the loading crane, two employees could not save themselves in time and suffocated.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Tschechien

 

***


Sources A year earlier One year later Top

1975

---------------------------------------------------------------------------

07 December 1975INES category 3

Greifswald, GDR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Greifswald

When an electrician at the Greifswald NPP wanted to show an apprentice how to bypass electrical circuits, he triggered a short circuit on the primary side of the block transformer in Block 1. The resulting arc caused a cable fire. The fire in the main cable duct destroyed the power supply and the control lines of 5 main coolant pumps (6 are in operation for one block). A core meltdown could have threatened, as reactor 1 could no longer be cooled properly. However, the fire was quickly brought under control by the company fire brigade and the power supply to the pumps was temporarily restored. The case was only made public on television after the fall of the Wall in 1989. Soviet authorities informed the IAEA just a few hours after the incident, which later classified it in INES 3 (precursor to an accident, here a "station blackout" melting scenario).

-

Nuclear power accidents by country#Germany

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Greifswald/Lubmin_(Mecklenburg-Vorpommern)

- -

---------------------------------------------------------------------------

28 November 1975INES category 5

Sosnovy Bor, Leningrad, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Leningrad

In 1975 there was a partial destruction of the reactor core in Unit 1 of the Leningrad NPP. The reactor was shut down. The next day the core was cleaned by pumping through an emergency reserve of nitrogen and venting through the exhaust stack. Approximately 1,5 megacuries (55 PBq) of radioactive substances were released into the environment. (INES level 5)

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Leningrad_(Russland)

- -

---------------------------------------------------------------------------

November 19 - 1975

NPP Gundremmingen, GER

Due to the unclear situation (?), This incident was not assigned an INES level!

(INES - Classification!)

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Gundremmingen

In the Gundremmingen nuclear power plant there is an accident in which two people die (spiegel). When working on an ancillary system of the primary circuit, 2 locksmiths loosen the mounting of a stuffing box and a radioactive steam-water mixture with a temperature of 280 ° C explodes. The younger of the two, a Master at the age of 34, was hit directly by the beam and died instantly. It was only 15 minutes after the accident that other power plant employees wearing heavy radiation protection suits recovered him. The other was 46 years old and was initially able to escape the confined space despite severe burns. He was taken to the nearby Lauingen hospital for emergency care. He was then taken by helicopter to a burn injury clinic where he died in the early hours of the next day.

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Gundremmingen_A_(Bayern)

-

'Gar Nix' provides further information

 

***


Sources A year earlier One year later Top

1974

---------------------------------------------------------------------------

The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests18 May 1974Nuclear weapons proving ground

India's first nuclear bomb test

Pokhran

-

Wikipedia

https://de.wikipedia.org/wiki/Kernenergie_in_Indien#Militärische_Nutzung

This "Smiling Buddha" atomic bomb test had a yield of about 8 kilotons of TNT equivalent and was detonated on May 18, 1974 at a depth of 107 m at the army compound near Pokhran (Rajasthan) in the Thar desert.

-

https://de.wikipedia.org/wiki/Operation_Smiling_Buddha

-

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

-

https://www.atomwaffena-z.info/heute/atomwaffenstaaten/indien.html

-

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

- -

---------------------------------------------------------------------------

INES category 506 February 1974

Sosnovy Bor, Leningrad, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Leningrad

Due to boiling water, a rupture of the heat exchanger in unit 1 occurred. Three people died. Highly radioactive water from the primary circuit along with radioactive filter sludge was released into the environment. (INES level 5)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Leningrad_(Russland)

 

***


Sources A year earlier One year later Top

1973

---------------------------------------------------------------------------

26 September 1973INES category 4

Sellafield, GBR

(INES 4 | NAMS 2) There were 5,4 TBq released radioactivity.

An exothermic reaction between accumulated zirconium and a solvent occurred in a tank at the processing plant, exposing 35 workers to increased levels of radiation.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

 

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


Sources A year earlier One year later Top

1972

---------------------------------------------------------------------------

06 December 1972INES category 3

Sellafield, GBR

(INES 3 | NAMS 1,6)

The processing of fuel elements stored too short caused a high iodine content and settled 2,2 tbq radioactivity free.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

1972INES category 1 - 3

Santa Maria de Garona, ESP

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Santa_María_de_Garoña

In the early years of its operation, this boiling water reactor regularly recorded significant excesses of the emission limit values ​​that were still less restrictive at the time (source: IAEA)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Santa_Maria_de_Garona_(Spanien)

- -

---------------------------------------------------------------------------

27 July 1972

Surry, Va, USA

(INES - Classification!)

Two killed when a steam pipe ruptured. 

Nuclear Power Accidents.pdf

-

Information on this accident and other similar incidents is available in German Wikipedia not or no longer to be found ...

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia - English

Nuclear Power Plant in Surry County in southeastern Virginia...

- On July 27, 1972, two workers were fatally burned after routine valve adjustment resulted in steam escaping through a gap in a vent line.

- On May 8, 1979, FBI agents examined a white crystalline substance that had been poured into 62 fresh fuel assemblies stored at the plant, a day after plant officials made the discovery. Westinghouse metallurgists found no damage to the fuel assemblies, including the metal containers and zirconium rods that held the fresh fuel.

- On December 9, 1986, a steam explosion in the non-nuclear part of Unit 2 injured eight workers (the condensate supply line ruptured due to internal erosion and overpressure when the supply pump check valve failed). Four of them later died.

- On April 16, 2011, a tornado struck the power plant's electrical switchgear, disrupting the primary power supply to the power plant's cooling pumps and allowing the backup diesel generators to be activated without incident.

- On August 23, 2011, an earthquake in central Virginia automatically shut down Dominion's North Anna reactors 11 miles from the epicenter. The similar reactors at Surry remained operational and Dominion issued a "Notice of Unusual Event" (the lowest level of a four-level emergency scale) at the Surry power plant, which was lifted later that same day.

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Surry_(USA)

On November 6, 2015, Dominium applied to the NRC for a lifetime extension to 1 years for Surry-2 and -80 to 2052 and 2053. Lifetimes of 80 years are currently the subject of controversy in the USA; Various nuclear experts doubt that safe operation can be guaranteed with such runtimes ...

 

***


Sources A year earlier One year later Top

1971

---------------------------------------------------------------------------

19 March 1971INES category 3

Sellafield, GBR

(INES 3 | NAMS 2)

Sparks from an arc ignited radioactive waste in a basement, causing 4,8 TBq radioactivity were released.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

 

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

 

***


Sources A year earlier One year later Top

1970

---------------------------------------------------------------------------

29 November 1970INES category 3

Sellafield, GBR

(INES 3 | NAMS 2,5)

The chimney of building B230 released approx. 1,6 TBq of plutonium.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia... 

 

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

08 June 1970INES category 4

LLNL Lawrence Livermore, USA

(INES 4 | NAMS 3,6)

About 222 Tbq were released in this accident, the wind blew the cloud mainly in a south-easterly direction. Radiation levels were measured 200 miles away.

Nuclear Power Accidents.pdf

-

Watching out for the ecology of Livermore

Livermore Eco Watchdogs

-

HISTORICAL PUBLIC DOSES FROM ROUTINE AND ACCIDENTAL RELEASES OF TRITIUM -
LAWRENCE LIVERMORE NATIONAL LABORATORY, 1953 - 2005

Historical Doses To The Public from Routine and Accidental Releases of Tritium

An estimated 29.300 TBq of tritium was released into the atmosphere at the Lawrence Livermore National Laboratory's Livermore site during its fifty-three years of operation; about 75% of this was accidentally released as gaseous tritium in 1965 and 1970. Routine emissions contributed to the total dose with just over 3.700 TBq of gaseous tritium and about 2.800 TBq of tritiated water vapor...

Translated with https://www.DeepL.com/Translator (free version)

USE OF TRITIUM AT LIVERMORE LABORATORY:

Tritium and the Lawrence Livermore National Laboratory

Two of the three largest tritium accidents I have ever seen documented occurred here at Livermore Lab's main site. In 1965 and 1970, the Livermore Lab released approximately 650.000 curies (23.700 TBq) of tritium into the air from the stacks of the tritium facility (Building 331). Note: One curie corresponds to 37 billion radioactive decay processes per second, in becquerels 37 GBq.

The largest release in LLNL history happened on January 20, 1965, since it was about 259 TBq.

The second highest dose comes from the release of 222 TBq that took place in 1970.

After the 1965 accident, not much data is available on wind patterns, precipitation, etc., but after the 1970 accident, Livermore Lab scientists found elevated tritium levels that they linked to the 1970 accident, as far south as Fresno, in southeast about 200 miles away.

Translated with https://www.DeepL.com/Translator (free version)

- - 

Wikipedia

Unfortunately, there is no information about these accidents in the German Wikipedia.

https://de.wikipedia.org/wiki/Lawrence_Livermore_National_Laboratory 

-

From English Wikipedia:

Just the usual propaganda copied from advertising brochures - in the past it was probably called - court reporting.

https://en.wikipedia.org/wiki/Lawrence_Livermore_National_Laboratory#Public_protests

Public protests

The Livermore Action Group organized numerous mass protests against the production of nuclear weapons by the Lawrence Livermore National Laboratory from 1981 to 1984. Peace activists Ken Nightingale and Eldred Schneider were involved. On June 22, 1982, more than 1.300 anti-nuclear weapons protesters were arrested in a non-violent demonstration. More recently, there is an annual protest against nuclear weapons research in Lawrence Livermore. In August 2003, 1.000 people protested at Livermore Labs against "new generation nuclear warheads". During the 2007 protests, 64 people were arrested. In March 2008, more than 80 people were arrested while protesting outside the gates.

On July 27, 2021, the Society of Professionals, Scientists, and Engineers - University of Professional & Technical Employees Local 11, CWA Local 9119 went on a three-day strike over unfair labor practices.

Translated with https://www.DeepL.com/Translator (free version)

- -

---------------------------------------------------------------------------

10 March 1970INES category 3

Sellafield, GBR

(INES 3 | NAMS 2)

Release of about 18 TBq of plutonium through the chimney of building B230.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia...

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

 

**

We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

***


Sources A year earlier One year later Top

Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1969

---------------------------------------------------------------------------

17 October 1969INES category 4

Saint-Laurent, FRA

More than 50 kilograms of uranium fuel at the Saint-Laurent nuclear plant began to melt after the cooling systems failed. The plant had to be shut down and repaired.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Saint-Laurent

On October 17, 1969, the reactor core was damaged during loading of the graphite reactor A1. The cooling of a fuel element was interrupted, which then melted. 50 kg of uranium escaped. Only the site was contaminated; the population was not informed. In 1969 this level 4 accident on the INES scale was declared an 'incident' by the EdF...

-

Nuclear power accidents by country#France

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Saint-Laurent_(Frankreich) 

- -

---------------------------------------------------------------------------

12 October 1969INES category 4

Sellafield, GBR

Release from the chimney of building B204.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia...

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

---------------------------------------------------------------------------

11 May 1969INES category 5

Rocky Flats, USA

(INES 5 | NAMS 2,3)

A plutonium fire broke out in the processing department of building 776 10 TBq Released radioactivity and caused high doses of radiation to 41 firefighters.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Rocky_Flats

Plutonium spontaneously ignited in a container with 600 t of inflammable material. The fire burned 2 t of the material and released plutonium oxide. Soil samples taken around the facility revealed that the area was contaminated with plutonium. Since the operators of the plant refused to initiate investigations, the samples were taken as part of an unofficial investigation ...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/USA

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

---------------------------------------------------------------------------

May 01, 1969 - Ågesta, Stockholm, SWE

(INES - Classification!)

A valve malfunction caused a flood in Agesta's heavy water pressure reactor.

Nuclear Power Accidents.pdf

- - 

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_%C3%85gesta 

- -

---------------------------------------------------------------------------

05 March 1969INES category 3

Sellafield, GBR

(INES 3)

A release from 370 MBq of plutonium in the laboratory of building B229.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia...

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

---------------------------------------------------------------------------

21 January 1969INES category 5

Lucens, CHE

(INES 5 | NAMS 1,6)

There were about 2,1 TBq radioactive radiation released.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Reaktor_Lucens

When the cooling system of an experimental reactor in the experimental nuclear power plant Lucens (VAKL) in the canton of Vaud failed, there was a partial core meltdown in the reactor. At the beginning of 1968 there was an inspection of the reactor producing energy with a capacity of 8 MW. It was put into operation in April/May, but was then switched off again until January of the next year. During this standstill, external water ran into the reactor's cooling circuit via a defective fan seal. The magnesium fuel rod cladding tubes corroded. When the reactor was restarted at 21:1969 am on January 4, 00, the products of corrosion were impeding cooling. Around 17:00 the fuel overheated and several fuel rods melted. A whole bundle of fuel rods caught fire and burst the moderator tank. Carbon dioxide (coolant) and heavy water (moderator) leaked into the reactor cavern. Since the increased radioactivity was measured a little earlier, the power plant could be evacuated and the cavern isolated. A large amount of radiation has been released into the Fels Reactor Cavern. The radioactive debris could only be cleared from the tunnel system years later. The cavern still contained a lot of radioactive material, but was sealed in such a way that no radiation could escape into the environment for the time being. The clean-up work lasted until May 1973. The rubble was stored in sealed containers on the site until it was transported to the central interim storage facility in Würenlingen (ZWILAG) in 2003...

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Lucens,_Schweiz_1969

 

***


Sources A year earlier One year later Top

1968

---------------------------------------------------------------------------

01 May 1968 INES category 4

Sellafield, GB

(INES 4 | NAMS 4)

The chimney of building B230 emitted over a period of about a month due to a defective filter 550 TBq radioactive radiation.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia...

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

Since the late 1940's and Windscale/Sellafield's inception, approximately 20 incidents of greater or lesser severity involving the release of radioactivity have been reported. The nuclear waste generated during day-to-day operations is discharged in large quantities in liquid form via a pipeline into the Irish Sea.

-

https://en.wikipedia.org/wiki/Sellafield

-

Nuclear power accidents by country#United_Kingdom

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

---------------------------------------------------------------------------

05 April 1968INES category 5

Mayak, Chelyabinsk, USSR

(INES 5 | NAMS 5)

There were about 5600 TBq released radioactivity. A technician died as a result of exposure to radiation.

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

The Mayak plutonium factory 

In 1957, the first major accident occurred in the use of atomic energy, which is comparable in its dimensions to the catastrophes in Fukushima and Chernobyl, but only became known to the world public in 1989.

The Mayak nuclear complex, 15 kilometers east of the city of Kyshtym in Chelyabinsk Oblast on the eastern side of the southern Urals, was an important part of Stalin's 1945 plans to rapidly produce weapons-grade plutonium and close the Soviet Union's nuclear weapons deficit. In 1948 the first reactor was switched on, in 1949 the first atomic bomb was detonated and Stalin had caught up with the USA.

235 radioactive accidents with serious consequences for the environment occurred in Mayak ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


Sources A year earlier One year later Top

1967

---------------------------------------------------------------------------

Würenlingen, CHEINES category 1 - 3

-

Wikipedia

The small research reactor "Diorit" produced a melted fuel element, the reactor hall was contaminated. Later a waste water batch was made, which corresponded to 40 times the normal value. (Source: ASK, today's Federal Nuclear Safety Inspectorate ENSI)

https://de.wikipedia.org/wiki/Forschungsreaktor_Diorit

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Schweiz

- -

---------------------------------------------------------------------------

02 May 1967INES category 4

Chaplecross, Scotland, UK

A fuel rod caught fire causing a partial meltdown at the Chaplecross Magnox Nuclear Power Plant, shutdown and 2 year repair time.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Chapelcross

In May 1967 there was a partial core meltdown in Block 2. The cause was a test fuel rod in which a graphite particle blocked the cooling system. The core was renewed and returned to service in 1969.

In 2001 there was an incident when reactor 3 was being refueled.

-

Nuclear power accidents by country#United_Kingdom

- - 

AtomkraftwerkePlag

Partial meltdown, Lockerbie plane crash and other incidents

On May 2, 1967, a partial meltdown occurred in Chapelcross-2. The trigger was a fuel rod that broke and caught fire. The incident was kept secret for several years, the reactor remained shut down for two years ...

https://atomkraftwerkeplag.fandom.com/de/wiki/Chapelcross_(Großbritannien)

 

***


Sources A year earlier One year later Top

1966

---------------------------------------------------------------------------

05 October 1966INES category 4

Enrico Fermi, Michigan, United States

Fermi 1, the prototype fast breeder reactor, suffered a partial fuel meltdown.

Nuclear Power Accidents.pdf

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Enrico_Fermi_(USA)#Enrico_Fermi_1

A malfunction of the sodium cooling system in the Enrico Fermi demonstration nuclear breeder reactor (fast breeder reactor) on the shore of Lake Erie resulted in a partial meltdown with no radiation escaping the containment. The reactor core contained 105 fuel assemblies consisting of zirconium-clad pins.

... Two of the 105 fuel elements melted, but no radiation was measured outside the containment. However, weeks later recriticality was feared. The 60 MWe reactor was running at full power again in October 1970. This incident provided the basis for John G. Fuller's controversial polemic We Almost Lost Detroit. (INES level 4)

-

Nuclear power accidents by country#United_States

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Fermi_(USA)

- -

---------------------------------------------------------------------------

The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests02 July 1966Nuclear weapons proving ground

 

France's first atomic bomb tests in the Pacific

Muroroa Atoll

-

spiegel

http://www.spiegel.de/einestages/mururoa-wie-frankreich-atombomben-auf-dem-atoll-testete-a-1100371.html

- - 

Wikipedia

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

- - 

Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

- -

---------------------------------------------------------------------------

07 May 1966INES category 4

Melekess, near Nizhny Novgorod (Gorki), USSR

An accident occurred in the research reactor VK-50: the technician and the shift manager were exposed to a high dose of radiation ...

Nuclear Power Accidents.pdf

-

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/VK-50_Melekess_(Russland)

On May 7, 1966, an accident occurred in the research reactor VK-50: a power excursion occurred during a chain reaction of fast neutrons. The operator and the shift supervisor were exposed to a high dose of radiation...

- - 

Wikipedia

https://de.wikipedia.org/wiki/RIAR

A power excursion by fast neutrons occurred in an experimental boiling water reactor (VK-Reactor) at the Atomic Reactor Research Institute Melekess. The operator and shift supervisor received high doses of radiation...

-

With the VK-50 in Melekess, the boiling water reactor concept of the USA was also briefly adopted in the 1960s, which, however, came to an abrupt end after two years with a serious accident.

https://de.wikipedia.org/wiki/Liste_der_kerntechnischen_Anlagen_in_Russland#Geschichte

-

Nuclear power accidents by country#Russia

 

***


Sources A year earlier One year later Top

1965

---------------------------------------------------------------------------

On March 2, 1965, the USA bombed North Vietnam for the first time, and from March 8, regular US combat troops land in Vietnam.

---------------------------------------------------------------------------

20 January 1965INES category 4

LLNL Lawrence Livermore, USA

(INES 4 | NAMS 3,7)

Approximately 259 TBq was released from the tritium plant's chimney. This accident was kept secret for years, during this time the population grew and houses were built on polluted soils...

Nuclear Power Accidents.pdf

-

Watching out for the ecology of Livermore

Livermore Eco Watchdogs

-

HISTORICAL PUBLIC DOSES FROM ROUTINE AND ACCIDENTAL RELEASES OF TRITIUM -
LAWRENCE LIVERMORE NATIONAL LABORATORY, 1953 - 2005

Historical Doses To The Public from Routine and Accidental Releases of Tritium

An estimated 29.300 TBq of tritium was released into the atmosphere at the Lawrence Livermore National Laboratory's Livermore site during its fifty-three years of operation; about 75% of this was accidentally released as gaseous tritium in 1965 and 1970. Routine emissions contributed to the total dose with just over 3.700 TBq of gaseous tritium and about 2.800 TBq of tritiated water vapor...

Translated with https://www.DeepL.com/Translator (free version)

-

USE OF TRITIUM AT LIVERMORE LABORATORY:

Tritium and the Lawrence Livermore National Laboratory

Two of the three largest tritium accidents I have ever seen documented occurred here at Livermore Lab's main site. In 1965 and 1970, the Livermore Lab released approximately 650.000 curies (23.700 TBq) of tritium into the air from the stacks of the tritium facility (Building 331). Note: One curie corresponds to 37 billion radioactive decay processes per second, in becquerels 37 GBq.

The largest release in LLNL history happened on January 20, 1965, since it was about 259 TBq.

The second highest dose comes from the release of 222 TBq that took place in 1970.

After the 1965 accident, not much data is available on wind patterns, precipitation, etc., but after the 1970 accident, Livermore Lab scientists found elevated tritium levels that they linked to the 1970 accident, as far south as Fresno, in southeast about 200 miles away.

Translated with https://www.DeepL.com/Translator (free version)

- - 

Wikipedia

Unfortunately, there is no information about these accidents in the German Wikipedia.

https://de.wikipedia.org/wiki/Lawrence_Livermore_National_Laboratory 

-

Wikipedia - en

Just the usual propaganda copied from advertising brochures - in the past it was probably called - court reporting.

https://en.wikipedia.org/wiki/Lawrence_Livermore_National_Laboratory#Public_protests

Public protests

The Livermore Action Group organized numerous mass protests against the production of nuclear weapons by the Lawrence Livermore National Laboratory from 1981 to 1984. Peace activists Ken Nightingale and Eldred Schneider were involved. On June 22, 1982, more than 1.300 anti-nuclear weapons protesters were arrested in a non-violent demonstration. More recently, there is an annual protest against nuclear weapons research in Lawrence Livermore. In August 2003, 1.000 people protested at Livermore Labs against "new generation nuclear warheads". During the 2007 protests, 64 people were arrested. In March 2008, more than 80 people were arrested while protesting outside the gates.

On July 27, 2021, the Society of Professionals, Scientists, and Engineers - University of Professional & Technical Employees Local 11, CWA Local 9119 went on a three-day strike over unfair labor practices.

Translated with https://www.DeepL.com/Translator (free version)

 

***


Sources A year earlier One year later Top

1964

---------------------------------------------------------------------------

1964 – 1979INES category 4

Beloyarsk, USSR

-

Wikipedia

https://de.wikipedia.org/wiki/Kernkraftwerk_Belojarsk

From 1964 to 1979 there was a series of destruction of fuel channels in reactor 1 of the Beloyarsk nuclear power plant. In each of these accidents, the personnel were exposed to significant radiation exposure. (INES level 4)

-

Nuclear power accidents by country#Russia

- - 

AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Beloyarsk_(Russland)

- -

---------------------------------------------------------------------------

23 July 1964INES category 4

Charlestown, Rhode Island, United States

Inside a nuclear fuel assembly facility (Wood River Junction Chemical Process Plant) in Charlestown one man died from a lethal dose of radiation, when a liquid uranium solution he was handling became critical...

-

Information on this accident and other similar incidents is available in German Wikipedia not or no longer to be found ...

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia - English

United Nuclear Corporation, Wood River Junction

On July 24, 1964, a fatal criticality accident occurred at the United Nuclear Corporation's Wood River Junction nuclear facility. This plant was designed for the recovery of highly enriched uranium from waste from fuel element production. Technician Robert Peabody worked with a tank containing radioactive uranium-235 in a sodium carbonate solution stirred with a stirrer. Intending to add a bottle of trichloroethane to remove organics, he accidentally added a bottle of uranium solution to the tank, resulting in a criticality excursion (runaway chain reaction) which is accompanied by a flash of light and the squirting out of about 20% of the tank's contents (approx 10 liters from 40 to 50 liters including the contents of the bottle).

This criticality exposed the 37-year-old Peabody to a lethal radiation dose of "more than 700 rem," equivalent to 7 Sv. He died 49 hours after the incident...

Translated with https://www.DeepL.com/Translator (free version)

- -

---------------------------------------------------------------------------

The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests1 April 1964Nuclear weapons proving ground

China's nuclear weapons test site

Loop Nor

-

Wikipedia

https://de.wikipedia.org/wiki/Kernwaffentestgelände_Lop_Nor

The Chinese Lop Nor Nuclear Weapons Test Site was established on April 1, 1960 in Xinjiang near Qinggir north of the Lop Nor desert in the Kuruk Tagh mountains as the largest nuclear weapons test site in the world with an area of ​​100.000 km². Between 1964 and 1996 a total of 45 above-ground (most recently on October 16, 1980) and underground nuclear tests for plutonium bombs and from 1967 also for hydrogen bombs were carried out there.

-

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

- - 

Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.htm

 

***


Sources A year earlier One year later Top

1963

---------------------------------------------------------------------------

Seemingly has been a happy year for humanity ...

Or did I just forget something?

 

***


Sources A year earlier One year later Top

1962

---------------------------------------------------------------------------

The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests01 May 1962Nuclear weapons proving ground

French atomic bomb test in Algeria - "Beryl"

In Ecker

Nuclear test Béryl - In 1961 and 1962, France carried out 13 underground nuclear tests in the Hoggar Mountains, the second test "Béryl" on 01.05.1962/XNUMX/XNUMX broke through and was overground ...

-

AtomkraftwerkePlag

Atomic bomb tests France

Algeria and French Polynesia

Up until 2001, the French government still denied that there were any radiation victims as a result of its 210 nuclear tests in Algeria and Polynesia.

In the Algerian Sahara, shortly after one of the tests, French recruits were deliberately led to the site of the explosion in order to "explore the physical and mental effects of the nuclear weapon on people." Many of the nuclear test veterans now suffer from cancer and other radiation sicknesses...

- - 

Atomwaffen A-Z

The nuclear weapon states

Overview of the atomic arsenals worldwide ... 

- - 

Wikipedia

French atomic bomb tests

In the vicinity of In Ekker, France operated an experimental center for the military ("Center d'expérimentations militaires des oasis, CEMO"). 7 nuclear weapons tests were carried out there between November 1961, 16 and February 1966, 13. On the second test (Beryl) on May 1, 1962, the closure of the tunnel did not withstand. Radioactive gases, dust and lava were ejected. The observers of the test were contaminated (including French ministers present) ...

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Sources A year earlier One year later Top

1961

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests30 October 1961Nuclear weapons proving ground

Hydrogen bomb test, USSR - "AN602"

Novaya Zemlya

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Wikipedia

https://de.wikipedia.org/wiki/AN602

The AN602, also known as the Tsar bomb, was detonated on October 30, 1961 at 11:32 a.m. Moscow time over the test site in Mityushika Bay on the North Sea island of Novaya Zemlya. The bomb was dropped from a modified Tupolev Tu 95W bomber at an altitude of over 10.000 meters and slowed down by a parachute to give the aircraft sufficient time to leave the test area.

The explosion took place at an altitude of around 4.000 m. The explosive power of the Tsar bomb was 57 megatons TNT equivalent, making it around 4000 times as powerful as the Hiroshima Little Boy bomb and approximately three to four times as powerful as Castle Bravo, the most powerful nuclear weapon test in the United States. Was the designer of the Tsar bomb Andrei Sakharov ...

The amount of the chemical explosive TNT, which would release an energy comparable to the Tsar bomb (57 MT), would have a diameter of 400 meters as a sphere.

AN602 was the largest man-made nuclear weapon and the devastating effect made it clear to all politicians who think and act responsibly that continuing with larger and larger bombs would inevitably make this planet uninhabitable.

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https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

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19 June 1961INES category 3

Sellafield, GBR

(INES 3 | NAMS 4)

A leak in an evaporator released large quantities of liquid containing plutonium (540 TBq) released into the cooling water. Although it was the XNUMXth largest release of radioactivity in the world, we have no further information.

Nuclear Power Accidents

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The nuclear chain

Sellafield/Windscale, UK

nuclear factory

The largest civilian and military nuclear facility in Europe is in Sellafield. While in the past plutonium was produced here for the British nuclear weapons program, the site now serves as a nuclear waste reprocessing plant. The Great Fire of 1957 and numerous radioactive leaks contaminated the environment and exposed the population to increased levels of radiation...

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This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

The one classified as "serious accident" INES 5 Windscale fire of 1957 is the only pre-2005 Sellafield incident that hasn't disappeared from Wikipedia...

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

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https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

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AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

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INES category 403 January 1961

NRTS Idaho Falls, USA

(INES 4 | NAMS 2,9)

There were about 41 TBq released by radioactive radiation.

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Wikipedia

List of accidents in nuclear facilities

At the National Reactor Testing Station Idaho, the experimental SL-1 reactor suffered a critical steam explosion and heavy release of radioactive material incident, killing the three operating crew members. With the exception of iodine-131, the spread of the radiation was limited to an area of ​​12.000 m². Within a radius of 30 km around the reactor, the contamination of vegetation by iodine-131 was about 100 times the natural radiation intensity. Even 80 km away, the load on the vegetation was twice as high...

... The rescue team could not find either a fire or the victims at first, but they found radiation levels of about 10 mSv/h inside the reactor building. When appropriate protective equipment arrived, a team entered the reactor building and found one dead and another member of the three-man crew still alive. According to a US Atomic Energy Commission report, 22 rescuers received an equivalent dose in the range of 30 to 270 mSv. The reactor was dismantled and the 12 ton reactor core and pressure vessel were buried a few months later...

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http://de.wikipedia.org/wiki/Idaho_National_Laboratory

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https://de.wikipedia.org/wiki/Experimental_Breeder_Reactor_I

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Nuclear power accidents by country#United_States

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What's wrong with Wikipedia?

The incident of January 4, 3, rated INES 1961 can be found in the Wikipedia entry "Idaho National Laboratory" in this paragraph:

The Stationary Low-Power Reactor Number One (SL-1) was a particularly low-power reactor intended to provide electrical power and heat to remote United States Army stations such as arctic radar stations. An accident on January 3, 1961 killed three people, the operators of the reactor. Radioactive iodine leaked from the reactor building, contaminating the surrounding area with 50-100 times the natural level, and 80 km downwind radiation levels were twice normal.

In the Wikipedia article linked from here "Experimental Breeder Reactor I" the fatal INES 4 accident of November 29, 1955 is dealt with in one sentence.

During the operation of the second core, a partial core meltdown occurred in 1955, the effects of which, however, were limited to the core itself.

Two INES 4 incidents should actually be enough to include a separate category for incidents.

 

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Sources A year earlier One year later Top

1960

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03 April 1960INES category 4

Waltz Mill, USA

WTR-2 reactor meltdown accident at Westinghouse's Waltz Mill site.

Nuclear Power Accidents.pdf

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Wikipedia - en

https://en.wikipedia.org/wiki/Westinghouse_TR-2#1960_accident

On Sunday evening, April 3, 1960, a partial meltdown occurred in the reactor. A fuel element melted and released the radioactive gaseous fission products krypton and xenon. The overheating and subsequent damage to the fuel assembly was said to have been caused by a local lack of adequate coolant flow. The accident was rated 4 on the international scale for nuclear events, an accident with local consequences ...

Translated with https://www.DeepL.com/Translator (free version)

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests13 February 1960Nuclear weapons proving ground

1. French atomic bomb test in Algeria

Reggane

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FAZ - Frankfurter Allgemeine Zeitung

France deliberately had soldiers irradiated

The emerging nuclear power France sent soldiers to radioactive areas in Algeria for a series of nuclear tests in the early XNUMXs and cared little about their health. The reveal excerpts from a secret report.

Around 50 km southwest of Reggane or 20 km south of Hamoudia there was a French nuclear weapons test site (CSEM - Center Sahara des Expérimentations Militaires) until 1965. There, on February 13, 1960, France carried out its first nuclear test with a 70 kT atomic bomb, which was about 4 times as powerful as the Hiroshima bomb. On April 1, 1960, December 27, 1960 and April 25, 1961, three further above-ground atomic bomb tests with less than 5 kT each were carried out on this site ...

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AtomkraftwerkePlag

Atomic bomb tests France

Algeria and French Polynesia

Up until 2001, the French government still denied that there were any radiation victims as a result of its 210 nuclear tests in Algeria and Polynesia.

In the Algerian Sahara, shortly after one of the tests, French recruits were deliberately led to the site of the explosion in order to "explore the physical and mental effects of the nuclear weapon on people." Many of the nuclear test veterans now suffer from cancer and other radiation sicknesses...

Around 150.000 people worked for the test program, many of whom were exposed to unprotected radiation, developed cancer and died ...

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Atomwaffen A-Z

The nuclear weapon states

Overview of the atomic arsenals worldwide ... 

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Wikipedia

French atomic bomb tests

On February 13, 1960, France tested its first atomic bomb (with a yield of 70 kt TNT equivalent) near Reggane. It was the most powerful bomb ever detonated in a first test. For comparison: the first US test (Trinity) had a power of 20 kt, the first USSR test (RDS-1) was 22 kt, the first British test (Hurricane) was 25 kt. The Hiroshima bomb (Little Boy) was 13 kt, the Nagasaki bomb (Fat Man) was 22 kt. The other three surface bombs at Reggane were less than 5 kt each...

*

We are looking for current information. If you can help, please send a message to: nuclear-world@reaktorpleite.de

 

***


Sources A year earlier One year later Top

Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1959

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20 November 1959INES category 4

Oak Ridge Laboratories, USA

Were caused by a chemical explosion 15 grams of plutonium-239 released.

Nuclear Power Accidents.pdf

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Wikipedia

List of accidents in nuclear facilities

A chemical explosion occurred at the Oak Ridge National Laboratory radiological chemical plant in Tennessee during the decontamination of work facilities. A total of 15 grams of plutonium-239 was released. During the explosion, this caused significant contamination of the building, the adjacent streets and the facades of adjacent buildings. The explosion is believed to have been triggered by contact of nitric acid with phenolic decontamination fluids. A technician had forgotten to flush an evaporator with water to make it free of decontamination liquids. Areas that could not be decontaminated were marked with a conspicuous warning color or concreted in. Oak Ridge authorities began using containment when handling radioactive chemical materials. (INES level 4)

https://de.wikipedia.org/wiki/Oak_Ridge_National_Laboratory

What's wrong with Wikipedia?

In the Wikipedia article linked from here "Oak Ridge National Laboratory" this INES 4 rated accident is not even mentioned anymore.

Why are you letting this go? Aren't you afraid of your credibility?

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

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26 July 1959INES category 6

Santa Susana Field Laboratory, Simi Valley, USA

Partial meltdown in the Santa Susana Field Laboratory sodium reactor experiment.

Nuclear Power Accidents.pdf

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Wikipedia

https://de.wikipedia.org/wiki/Santa_Susana_Field_Laboratory

At the Santa Susana Field Laboratory in California, which operated a 7,5 MWe sodium-cooled fast breeder reactor, a 30 percent meltdown occurred in this reactor due to a clogged cooling duct. Most of the fission products could be filtered out. However, most of the radioactive gases were released into the environment, resulting in one of the largest iodine-131 releases in nuclear history. The accident was kept secret for a long time ...

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accident in 1959

https://de.wikipedia.org/wiki/Sodium_Reactor_Experiment#Unfall_im_Jahr_1959

... It is very likely that the coolant partially boiled (boiling point of sodium: 883 °C), which allows conclusions to be drawn about the local temperatures. However, the melting temperature of the metallic uranium used as fuel was not reached, only the fuel rod cladding began to turn into a liquid state. The exact date of the damage is unknown, but could be narrowed down to the period between July 12 and 26, 1959.

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Nuclear power accidents by country#United_States

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Simi_Valley,_USA_1959

Simi Valley, USA 1959

On July 26, 1959, a partial meltdown occurred in the Sodium Reactor Experiment (SRE), a sodium-cooled reactor with an output of 7,5 to 20 MW at the Santa Susana Field Laboratory near Moorpark, California.

Because of the high heat, 10 of 43 fuel elements were damaged and radioactive substances were released. The reactor was shut down in February 1964 ...

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Sources A year earlier One year later Top

1958

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30 December 1958INES category 4

Los Alamos, USA

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Wikipedia

https://de.wikipedia.org/wiki/Los_Alamos_National_Laboratory

A criticality accident occurred while extracting a plutonium-containing solution at the Los Alamos Scientific Laboratory in New Mexico. The operator died of acute radiation sickness. After this accident, manipulators were used for good when working with critical masses in the United States. Until then, despite the criticality accidents in the 1940s, manual labor in handling plutonium was widespread. (INES level 4)

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What's wrong with Wikipedia?

In the Wikipedia article linked from here, this INES 4 incident, like all other accidents in Los Alamos, is dealt with in four sentences...

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

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INES category 415 October 1958

Vinca, Boris Kidrič Institute, YU

(INES 4)

6 workers were exposed to a high dose of radiation, one of whom died a few days later.

Nuclear Power Accidents.pdf

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NTI - Nuclear Threat Initiative

https://www.nti.org/learn/countries/former-yugoslavia/nuclear/

Yugoslavia worked with Norway in the field of plutonium reprocessing, set up a department for the reprocessing of spent fuel elements in Vinca, signed a cooperation agreement with the Soviet Union in 1956 for the 6,5 MW research reactor RA (heavy water reactor with moderation and cooling) and built the RB, a critical arrangement with heavy water natural uranium at zero output. Described by Vinca officials as "essentially a reactor for producing plutonium," the RA reactor was fundamental to Tito's weapons research.

In the early 1960s, as the nuclear research program gained momentum, Tito reportedly scaled back the weapons aspect of the program. In 1958, a criticality accident at Vinca's heavy water RB reactor killed one person and suffered five others from radiation poisoning...

Translated with https://www.DeepL.com/Translator (free version)

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24 May 1958

ChalkRiver, Ontario, CAN

(INES - Classification!)

A fuel rod caught fire, contaminating half the facility.

Nuclear Power Accidents.pdf

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The power of the nuclear lobby.

Just as there was no INES classification at that time, this accident is simply not mentioned in the German Wikipedia to this day.

From English Wikipedia:

https://en.wikipedia.org/wiki/Chalk_River_Laboratories#1958_NRU_incident

The 1958 accident resulted in a fuel rupture and fire in the reactor building of the National Research Universal Reactor (NRU). Some fuel rods had overheated. Using a robotic crane, one of the rods containing metallic uranium was pulled out of the reactor vessel. As the crane's arm moved away from the reactor vessel, the uranium caught fire and the rod broke. Most of the rod fell into the containment vessel and was still burning. The entire building was contaminated. Ventilation system valves were opened and a large area outside the building was contaminated. The fire was extinguished by scientists and maintenance personnel in protective gear, who ran buckets of wet sand through the hole in the containment and threw the sand down the moment they passed the smoking entrance.

... The Canadian Coalition for Nuclear Responsibility, an anti-nuclear organization, however, points out that some clean-up workers who were part of the military contingent in the NRU reactor building unsuccessfully applied for a military disability pension due to poor health. Chalk River Laboratories remains an AECL facility to this day and is used both as a research facility (in collaboration with the NRC) and as a manufacturing facility (on behalf of the AECL) in support of other Canadian electric utilities...

Translated with https://www.DeepL.com/Translator (free version)

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02 January 1958INES category 4

Mayak, Chelyabinsk, USSR

A supercriticality accident at the USSR's Mayak Complex killed three people and injured one.

Nuclear Power Accidents.pdf 

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Wikipedia

Mayak, January 2, 1958

After a criticality experiment, the uranium solution should be transferred to geometrically safe containers. In order to save time, the experimenters bypassed the standard procedure for decanting because they assumed that the remaining solution was far subcritical. However, due to the changed geometry during the transfer, the presence of the people was sufficient to reflect enough neutrons for the solution to promptly become critical. The solution exploded and three workers received radiation doses of about 60 gray and died after five to six days. A worker at a distance of 3 meters received 6 Gray, survived the acute radiation sickness, but suffered from serious secondary diseases. The criticality experiments in this factory were then discontinued. On the international assessment scale for nuclear incidents (INES), the incident was classified at level 4 (accident) ...

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AtomkraftwerkePlag

The Mayak plutonium factory 

The Mayak nuclear complex, 15 kilometers east of the city of Kyshtym in Chelyabinsk Oblast on the eastern side of the southern Urals, was an important part of Stalin's 1945 plans to rapidly produce weapons-grade plutonium and close the Soviet Union's nuclear weapons deficit. In 1948 the first reactor was switched on, in 1949 the first atomic bomb was detonated and Stalin had caught up with the USA.

235 radioactive accidents with serious consequences for the environment occurred in Mayak ...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

 

***


Sources A year earlier One year later Top

1957

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07. - 12. October 1957INES category 5

wind scale/ Sellafield, GBR

(INES 5 | NAMS 4,6)

A fire ignited plutonium and generated a very large amount of radioactive dust (1786 TBq), which, among other things, forced the surrounding dairy farms to give up.

Nuclear Power Accidents.pdf

-

This accident is the last and only one Accident in Sellafield before 2005, not yet from the German Wikipedia has disappeared...

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

Since the late 1940's and Windscale/Sellafield's inception, approximately 20 incidents of greater or lesser severity involving the release of radioactivity have been reported. Up until the mid-1980s, large quantities of the nuclear waste generated in day-to-day operations were discharged in liquid form via a pipeline into the Irish Sea.

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Windscale brand

In the nuclear reactor Pile No. 1 in Windscale and Sellafield, respectively, technicians heated up the reactor in order to glow the so-called Wigner energy from the graphite serving as a moderator...

The accident is later blamed for dozens of cancer deaths.

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https://en.wikipedia.org/wiki/Sellafield

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Nuclear power accidents by country#United_Kingdom

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AtomkraftwerkePlag

Sellafield (formerly_Windscale), UK 1957

Windscale began operations in the 1940s. The site was initially responsible for the inspection and packaging of small arms ammunition and later, aided by its isolated location, for plutonium production for the British nuclear weapons program...

On October 7, 1957, Pile 1 was heated for the ninth time, and initially there were no complications. However, when the temperature did not rise to the required level the following day, the crew decided to heat it up again, causing the reactor to spiral out of control. There was a sudden increase in temperature, which continued over the next few days without being able to be stopped. On October 10, the reactor caught fire and radioactivity was released. All attempts to delete it failed. On October 11, 1957, a maximum temperature of 1.300 °C was reached and a large radioactive cloud containing iodine, cesium, strontium and plutonium spread over the Irish Sea. The reactor was finally cooled with large quantities of water and the fire was extinguished the following day.

Nobody was evacuated. The full extent of the accident and the mistakes in organization and technology were kept secret for 30 years...

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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29 September 1957INES category 6

Mayak, the Kyshtym accident, USSR

(INES 6 | NAMS 7,3)

There were about 1 million TBq released radioactivity.

At the Majak Scientific-Production Association spent fuel storage facility, heat exchangers in the nitrate storage tank failed, causing a severe chemical explosion.

Nuclear Power Accidents.pdf

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Wikipedia

https://de.wikipedia.org/wiki/Kyschtym-Unfall

Also known as the Accident of Mayak. The reprocessing plant there stored its waste products in large tanks. The radioactive decay of the substances generates heat, which is why these tanks have to be constantly cooled. After the cooling lines of one of these 1956 m³ tanks leaked in the course of 250 and the cooling was therefore switched off, the contents of this tank began to dry out. Triggered by a spark from an internal measuring device, the nitrate salts contained exploded and released large quantities of radioactive substances. Since the contaminated cloud remained low to the ground, the pollution in the area around Russia's Kyshtym was almost twice that of the Chernobyl accident. Since the contamination was limited to the Urals, measuring devices in Europe did not sound the alarm (cf. Chernobyl accident), which meant that the accident could be kept secret from the world public for 30 years. (INES level 6)

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Nuclear power accidents by country#Russia

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AtomkraftwerkePlag

The Mayak plutonium factory 

In 1957, the first major accident occurred in the use of atomic energy, which is comparable in its dimensions to the catastrophes in Fukushima and Chernobyl, but only became known to the world public in 1989.

The Mayak nuclear complex, 15 kilometers east of the city of Kyshtym in Chelyabinsk Oblast on the eastern side of the southern Urals, was an important part of Stalin's 1945 plans to rapidly produce weapons-grade plutonium and close the Soviet Union's nuclear weapons deficit. In 1948 the first reactor was switched on, in 1949 the first atomic bomb was detonated and Stalin had caught up with the USA.

235 radioactive accidents with serious consequences for the environment occurred in Mayak ...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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11 September 1957INES category 5

Rocky Flats, USA

(INES 5 | NAMS 2,3)

There were about 7800 TBq released radioactivity.

A fire destroyed a plutonium processing plant.

Nuclear Power Accidents.pdf

-

Wikipedia

Rocky Flats

Plutonium spontaneously ignited in a container with 600 t of inflammable material. The fire burned 2 t of the material and released plutonium oxide. Soil samples taken around the facility revealed that the area was contaminated with plutonium. Since the operators of the plant refused to initiate investigations, the samples were taken as part of an unofficial investigation ...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

 

***


Sources A year earlier One year later Top

1956

---------------------------------------------------------------------------

Seemingly has been a happy year for humanity ...

Or did I just miss something?

 

***


Sources A year earlier One year later Top

1955

---------------------------------------------------------------------------

08 December 1955INES category 3

wind scale/ Sellafield, GBR

A fire broke out in a silo for radioactive waste in building B247.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Until the mid-1980s, large quantities of the nuclear waste generated in daily operations were discharged in liquid form via a pipeline into the Irish Sea ...

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- -

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29 November 1955INES category 4

NRTS Idaho Falls, EBR-I, ID, USA

Partial meltdown during a coolant flow test.

Nuclear Power Accidents.pdf

-

Wikipedia

At the National Reactor Testing Station Idaho, the EBR-I research reactor suffered a partial meltdown. The core, made of enriched uranium combined with 2% zirconium, melted in tests that called for a rapid increase in performance due to fuel tubes warping. Evaporation of the coolant NaK transported the melting fuel into the cooling system tubes and dropped below criticality, causing the reactor to shut itself down...

https://de.wikipedia.org/wiki/Idaho_National_Laboratory

In the Wikipedia article, this INES 4 incident from November 29.11.1955, 4 is not even mentioned and the fatal incident from January 03.01.1961, 4, also rated as INES XNUMX, is only touched upon briefly. Two INES XNUMX incidents should actually be enough to include a separate section for incidents.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

-

Nuclear power accidents by country#United_States

- -

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14 July 1955INES category 3

wind scale/ Sellafield, GBR

(INES 3)

A radioactive leak was discovered during clean-up work.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Until the mid-1980s, large quantities of the nuclear waste generated in daily operations were discharged in liquid form via a pipeline into the Irish Sea ...

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

- - 

AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

The operator Sellafield Ltd. admits that parts of the subsurface at Sellafield are contaminated with radioactive substances such as cesium-137, technetium-99, strontium-90, iodine-129, tritium, carbon-14, plutonium and uranium. It is estimated that nine to 13 million cubic meters are affected by the contamination.

"Children and adolescents from Sellafield are ten times more likely to develop blood cancer than the national average. Traces of plutonium and strontium were found in the teeth of adolescents."

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

- -

---------------------------------------------------------------------------

25 March 1955INES category 4

wind scale/ Sellafield, GBR

(INES 4 | NAMS 4,3)

In this fire were about 1000 terabecquerels released radioactivity.

Nuclear Power Accidents.pdf

-

This accident, as well as several other releases of radioactivity originating from Sellafield, are no longer in the German Wikipedia to find.

Apparently, slowly but surely, all important information about accidents in the nuclear industry is being removed from Wikipedia!

Wikipedia

https://de.wikipedia.org/wiki/Sellafield

The complex was made famous by a catastrophic fire in 1957 and by frequent nuclear incidents, which is one of the reasons why it was renamed Sellafield. Until the mid-1980s, large quantities of the nuclear waste generated in daily operations were discharged in liquid form via a pipeline into the Irish Sea ...

-

https://en.wikipedia.org/wiki/Sellafield#Incidents

Radiological releases

Between 1950 and 2000 there were 21 serious off-site incidents or accidents involving radiological releases that warranted classification on the International Nuclear Event Scale, one at Level 5, five at Level 4 and fifteen at Level 3. In addition, there were in intentional releases of plutonium and irradiated uranium oxide particles into the atmosphere known for extended periods in the 1950s and 1960s...

Translated with https://www.DeepL.com/Translator (free version)

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AtomkraftwerkePlag

Sellafield (formerly_Windscale), United Kingdom

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There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

 

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Sources A year earlier One year later Top

1954

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests28 February 1954Nuclear weapons proving ground

Test series with 6 hydrogen bombs, USA

Bikini Atoll

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Wikipedia

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

On February 28.02.1954, 6, the first of six hydrogen bomb tests took place within XNUMX weeks near Bikini Atoll, the entire series became known under the name 'Operation Castle'. As a result, 236 people on Rongelap Island suffered from high levels of radiation. The 140 crew members of the Japanese fishing boat were found 23 km from the explosion site.Lucky Dragon V.'heavily irradiated.

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

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Sources A year earlier One year later Top

1953

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Apparently it was a happy year for mankind, there were no major nuclear power plant incidents ...
Or did I just miss something?

An armistice agreement has been in force in Korea since July 27, 1953!

 

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Sources A year earlier One year later Top

1952

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INES category 512 December 1952

ChalkRiver, CAN

A hydrogen explosion damaged the interior of the reactor and sat 30 kilograms of uranium oxide particles free.

Nuclear Power Accidents.pdf

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Wikipedia

The first serious reactor accident occurred in the so-called NRX reactor at Chalk River Laboratories near Ottawa, Canada. During a test of the research reactor, incorrect operation, misunderstandings between the operator and the operating staff, incorrect status displays in the control room, incorrect assessments by the operator and hesitant action caused the reactor core to be destroyed in the event of a partial core meltdown. An oxyhydrogen explosion in the reactor core threw the dome of a four-tonne helium gas container 1,2 m high, causing it to get stuck in the structure. The explosion released at least 100 TBq of fission products into the atmosphere. Up to four million liters of radioactively contaminated water with around 400 TBq of long-lived fission products were pumped from the basement of the reactor containment into a sandy septic tank in order to prevent contamination of the nearby Ottawa River. The damaged reactor core was buried. The later one US President Jimmy Carter, then a nuclear technician in the Navy, helped with the clean-up work that lasted several months ...

https://de.wikipedia.org/wiki/Chalk_River_Laboratories

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https://de.wikipedia.org/wiki/NRX-Reaktor#Reaktorunfall

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https://de.wikipedia.org/wiki/Liste_von_Unfaellen_in_kerntechnischen_Anlagen

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Nuclear power accidents by country#Canada

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AtomkraftwerkePlag

https://atomkraftwerkeplag.fandom.com/de/wiki/Chalk_River,_Kanada_1952

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests03 October 1952Nuclear weapons proving ground

Britain's first atomic bomb test

Trimouille Island

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Wikipedia

List of nuclear weapons tests#Britain

Great Britain used test sites in Australia (12 tests), on the Christmas Island (6 attempts) and on Malden Island (3 tries).

The Operation Hurricane was the first British atomic bomb test, on October 3, 1952 on Trimouille Island, one of the 174 small Montebello Islands carried out on the north west coast of Western Australia...

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Nuclear Weapons A - Z

Trimoulle Island - Montebello Islands

The Montebello Islands are located about 100 km northwest of the Australian coast. Britain secretly carried out three nuclear tests here between 1952 and 1956 with the approval of Australian Prime Minister Robert Menzies. It is questionable whether Menzies included his cabinet in the decision. The Australian population initially knew nothing about it.

The first British atomic bomb was detonated as part of Operation Hurricane on October 3, 1952 at 8 a.m. local time. It was a 25 KT (kiloton) plutonium bomb and was detonated on a ship, HMS Plym. The ship was anchored in a lagoon near Trimouille Island. The plutonium used for the implosion bomb similar to the "Fat Man" bomb was produced in Windscale (later Sellafield) and shipped from Canada. The explosion was detonated below deck, 2,7 meters underwater. It created a crater on the sea floor that was 6 meters deep and more than 300 meters wide...

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1951

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Apparently it was a happy year for mankind, there were no major nuclear power plant incidents ...
Or did I just miss something?

 

***


Sources A year earlier One year later Top

1950

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Apparently it was a happy year for mankind, there were no major nuclear power plant incidents ...
Or did I just miss something?

Oh yes, the Korean War started on June 25, 1950!

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Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

1949

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ines4December 02nd, 1949 - "Green Run" Nuclear weapons proving ground

Intentional release of radioactivity

Hanford, Washington, United States

(INES 4 | NAMS 3,8)

The operators released 8.000 curies (289 Tbq) of iodine-131 over two days in an experiment known as the "Green Run".

Nuclear Power Accidents.pdf

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Wikipedia

Green Run

The Green Run experiment saw the release of a radioactive cloud from the Hanford Site military nuclear complex. Estimates are in the range of several 100 TBq of iodine-131 and even more cesium-133. The iodine-131 portion alone was 5500 curie; this corresponds to roughly 250 times the amount that, according to official figures, was released into the area in the 1979 accident at the Three Mile Island nuclear power plant near Harrisburg. The dangers of iodine 131 for the thyroid gland had not yet been recognized in the 1940s; iodine 131 could escape unfiltered from the Hanford site even when it was used as intended. During normal operation, several 10 TBq of medium- and long-lived nuclides were released into the Columbia River every day. Hanford is considered to be the most severely radioactive place in the western hemisphere.

At that time hardly anyone knew anything about what happened on December 02.12.1949nd, XNUMX in Hanford Washington. We all got something out of it ...

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Hanford site

The US pays over $200.000 billion a year to private corporations to decontaminate the facility; in addition, around 2014 cubic meters of radioactive waste must be disposed of. In early 6, a decontamination project manager was fired for the third time after he or she raised concerns about the safety of the operations and monitoring procedures.[2047] A preliminary plan called for the end of the work in 2014, since 2052 the Ministry of Energy has been assuming at least XNUMX ...

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Nuclear power accidents by country#United_States

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AtomkraftwerkePlag

Hanford (USA)

The Hanford Military Complex is located on the Columbia River north of the city of Richland in northwest Washington state and was used to produce plutonium for military use from 1943 ...

With Hanford, the US has the worst-radiated nuclear facility in the western world, which was shut down in 1988 and has been decontaminated ever since.

-

There are comparable nuclear factories all over the world:

Uranium enrichment and reprocessing - facilities and sites

During reprocessing, the inventory of spent fuel elements can be separated from one another in a complex chemical process (PUREX). Separated uranium and plutonium can then be reused...

- - 

YouTube - Reactor bankruptcy

Uranium economy: Facilities for processing uranium

Reprocessing plants turn a few tons of nuclear waste into many tons of nuclear waste

All uranium and plutonium factories produce radioactive nuclear waste: uranium processing, enrichment and reprocessing plants, whether in Hanford, La Hague, Sellafield, Mayak, Tokaimura or anywhere in the world, all have the same problem: With every processing step More and more extremely toxic and highly radioactive waste is being produced ...

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests29 August 1949Nuclear weapons proving ground

First nuclear bomb test of the USSR - "RDS-1"

Semipalatinsk

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Wikipedia

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

The Soviet Union carried out its first atomic bomb test ("RDS-1") on Aug 29, 1949 on the Semipalatinsk nuclear weapons test site (now Kazakhstan) through. Between 1949 and 1990, the Soviet Union carried out a total of 715 tests with 969 individual explosives ...

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

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Sources A year earlier One year later Top

1948

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Apparently it was a happy year for mankind, there were no major nuclear power plant incidents ...
Or did I just miss something?

 

***


Sources A year earlier One year later Top

1947

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Apparently it was a happy year for mankind, there were no major nuclear power plant incidents ...
Or did I just miss something?

 

***


Sources A year earlier One year later Top

1946

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of testsJuly 1946Nuclear weapons proving ground

US atomic bomb test series

Bikini Atoll, Pacific Ocean

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Wikipedia

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

The Operation crossroads was the second nuclear weapons testing operation by the United States Armed Forces. It involved two nuclear tests, 'Able' and 'Baker', at Bikini Atoll, US Pacific Islands Trust Territory, in the summer of 1946, each with a TNT equivalent of 23 kT: Test Able was one on July 1, 1946 by a Boeing B -29 Mk.158 implosion bombs dropped and detonated 3 meters above the lagoon, Test Baker was an underwater detonation of an identical bomb at a depth of 27 meters and took place on 25 July 1946 ...

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

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21 May 1946INES category 4

Los Alamos, USA

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Wikipedia

https://de.wikipedia.org/wiki/Louis_Slotin

The Nuclear weapons factory in Los Alamos Canadian physicist Louis Slotin carried out tests on the criticality of plutonium in the presence of several scientists. The experimental setup consisted of a subcritical plutonium core (the same one involved in the 6 accident, hereinafter referred to as the "Demon Core") weighing about 1945 kg, and two hemispheres made of beryllium, which served as neutron reflectors and the core could enclose.

[...]

Slotin was able to lift off the upper hemispherical shell and thus reduce the reactivity again. However, he was exposed to a lethal energy dose of about 10 Gray from the accident, with the seven observers receiving up to 1,7 Gray. Slotin died of radiation sickness on May 30...

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List of accidents in nuclear facilities

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1945

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21 August 1945INES category 4

Los Alamos, USA

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Wikipedia

https://de.wikipedia.org/wiki/Harry_Daghlian

Harry K. Daghlian Jr. worked on the Omega site of the Nuclear weapons factory in Los Alamos and created supercritical mass when he accidentally dropped a block of tungsten carbide onto a plutonium core (Demon Core). Although he pushed the piece away, he received a fatal dose of radiation in the incident and died on September 15, 1945....

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List of accidents in nuclear facilities

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of testsAugust 06 and 09, 1945

1st and 2nd use of nuclear bombs over Japan

dropping the Atomic bombs on Japan

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Wikipedia

August 9, 1945 - The 2nd atomic bomb - plutonium bomb 'Fat man' - dropped on Nagasaki! (Explosive power 22.000 tons of TNT)

August 6, 1945 - The first atomic bomb - the 'Little Boy' uranium bomb - was dropped on Hiroshima! (Explosive force 1 tons of TNT)

The two Atomic bomb explosions killed a total of about 92.000 people immediately.
A further 130.000 people died as a result of the attacks by the end of 1945, and countless others died from consequential damage in the years that followed.

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The mushroom cloud stands for atomic or hydrogen bombs, also in the context of tests16 July 1945Nuclear weapons proving ground

First atomic bomb test - "Trinity"

"Trinity", New Mexico, USA

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Wikipedia

The US led the first "Trinity" atomic bomb test in the Alamogordo Test Range, plutonium-239 produced at the Hanford site was used as fissile material; the explosive force was 20-22 kilotons (kT).

https://de.wikipedia.org/wiki/Liste_von_Kernwaffentests

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Nuclear Weapons A - Z

https://www.atomwaffena-z.info/heute/atomwaffenstaaten.html

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1944

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The 2nd World War is raging ...

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1943

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The 2nd World War is raging ...

Work on the Hanford Engineer Works (HEW) began in March 1943. Before the end of the war in August 1945, 554 buildings were erected in Hanford:

- three reactors (100-B, 100-D, and 100-F)

- three plutonium processing plants (200-T, 200-B, and 200-U)

- 64 underground tanks for highly radioactive waste

- uranium enrichment plants

- 621 km of road

- 254 km of railway line

- 4 electrical distribution stations

- plus hundreds of kilometers of fences.

600.000 m³ of concrete and 40.000 tons of steel were used for this at a total cost of 230 million US dollars. Hanford is considered the most radioactive place in the Western Hemisphere...

 

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1942

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The 2nd World War is raging ...

Wikipedia

Chicago Pile 1

Chicago Pile refers to a series of experimental reactors. The first three of these reactors were part of the Manhattan Project, whose goal was to build atomic bombs.

When the Chicago Pile 1 (English pile, pile '), short CP-1, reached criticality, he was the first functional man-made nuclear reactor. The pilot plant was built by the Metallurgical Laboratory at the private University of Chicago. It should confirm the theoretical expectation that a self-sustaining fission chain reaction can be controlled. The metallurgical laboratory was founded in 1942 by Arthur Holly Compton, a winner of the 1927 Nobel Prize in Physics. The reactor development had the goal of breeding weapons-grade plutonium from uranium-238 for the Manhattan project ...

- -

Jun. 23, 1942 - University of Leipzig

In the laboratory of the experimental physicist Prof. Robert Döpel a so-called uranium machine exploded, burning the uranium powder used. It was a nuclear test facility, which was used in the Third Reich as part of the secret uranium project was used. Hydrogen was produced, as it was in the run-up to a number of later nuclear accidents - up to Fukushima in 2011. Although the extent of the fire was relatively small, it took the fire police two days to extinguish it. The emergency services were not wearing respirators, which meant they inhaled radioactive material. However, nothing is known about health consequences, since the documents were destroyed during the war.

 

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1941

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The 2nd World War is raging ...

On December 07.12.1941th, XNUMX, Japanese naval aviators attacked the American port 'Pearl Harbor'in Hawaii, on December 08.12.1941th, XNUMX the USA officially entered World War II.

On February 24.02.1941th, 94, the chemist Arthur Wahl provided clear evidence for the element XNUMX (plutonium).

 

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1940

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The 2nd World War is raging ...

Plutonium was founded by the Americans Glenn T. Seaborg, JW Kennedy, EM McMillan, Michael Cefola and Arthur Wahl on 14 December 1940 discovered, they produced the isotope 238Pu by bombarding uranium 238U with deuterium in a cyclotron ...

The Second World War started on 01 September 1939 with the German invasion of Poland. At that time, Japan was in a border war with the Soviet Union (1938/39) and in East Asia, since the incident at the Marco Polo Bridge on 07.07.1937/XNUMX/XNUMX, in war with China ...

Am 02 August 1939 Albert Einstein wrote the letter to US President Roosevelt that he himself later described as his "greatest mistake".

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Radioactive events of the years:
2019 – 2010 2009 – 2000 1999 – 1990 1989 – 1980
1979 – 1970 1969 – 1960 1959 – 1950 1949 – 1940

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