2.1966 65438+1October 17 An American B-52 bomber collided with KC- 135 tanker while refueling over the Spanish coast during the Paris mares hydrogen bomb accident. After the impact, the tanker was completely destroyed, the B-52 bomber disintegrated, and the four hydrogen bombs it carried "escaped" from the broken fuselage. Two "non-nuclear weapons" of the hydrogen bomb exploded when they landed, causing 490 acres (about 2 square kilometers) to be contaminated by radioactive plutonium. Searchers found one of the devices in the Mediterranean.
3.1April 26, 986, the Chernobyl nuclear accident was called the worst nuclear power plant disaster in history. 1On the morning of April 26th, 986, the No.4 reactor of Chernobyl nuclear power plant exploded, and then more explosions occurred, which caused a fire and radioactive fallout into the air. It is reported that the amount of radioactive fallout from this accident is 400 times that of the atomic bomb dropped on Hiroshima.
4.1968 65438+1October 2 1 The crew of a B-52 bomber in the United States was forced to make an emergency landing because of a fire in the engine room. The B-52 bomber finally hit the sea ice near Thule Air Force Base in Greenland, causing the nuclear weapons it carried to rupture and the radioactive pollutants to spread in a large area.
5.1957 101October10, the Winskel fire caused a nuclear disaster in the graphite core of a British nuclear reactor near Cumberland. The fire caused a large amount of radioactive pollutants to leak out. This nuclear disaster is the most serious reactor accident before the accident at Three Mile Island Nuclear Power Station.
6.1987 September 13 A garbage dump worker pried open an abandoned radiotherapy machine and took out a small piece of highly radioactive cesium chloride, which brought disaster to the city. At that time, more than 240 people were exposed to nuclear radiation. Deceived by the bright green of radioactive substances, the children touched and smeared on their skin with their hands, causing pollution in several blocks and had to be removed.
7.1Tomsk -7 nuclear explosion on April 6, 993 This nuclear accident occurred in Tomsk, Siberia, and was caused by the explosion of nitric acid while cleaning containers. The explosion caused the recovery and treatment facilities of Tomsk -7 to release radioactive gas clouds. 8.1985 August 10 K-43 1 Nuclear submarine accident During the refueling process in Vladivostok (nuclear submarine K-43 1), the E-2 class nuclear submarine K-43 1 exploded and radioactive gas clouds entered. 10 sailors were killed in this nuclear accident, and 49 others suffered radioactive damage.
9. 1999 On September 30th, 1999, the Shojimura nuclear accident occurred at the uranium recovery and treatment facility in the northeast of Tokyo, which was the worst nuclear disaster in Japanese history. The workers were mixing liquid uranium when the accident happened.
10.1970 65438+February 18 The Gakapi nuclear accident in Nevada, USA occurred during the Barnabas nuclear experiment. After the experiment, the plug sealing the surface shaft failed, resulting in radioactive debris leaking into the air. Six workers at the scene were exposed to nuclear radiation.
11.1March 28, 979: Nuclear leakage at Three Mile Island nuclear power plant in the United States. The radioactive material leakage accident of the No.2 reactor of Three Mile Island Nuclear Power Plant is the most serious nuclear power plant accident in American history, although no casualties were caused.
12. 1985 August 10, K-43 1 nuclear submarine accident. During the refueling process of Vladivostok (K-43 1 nuclear submarine), the E-2 class K-43 1 nuclear submarine exploded and radioactive gas clouds entered the air. 10 sailors were killed in this nuclear accident, and 49 others suffered radioactive damage.
13.1in the early morning of April 26, 986, a violent explosion occurred at the Chernobyl nuclear power plant, which is located 130 km north of Kiev, the capital of Ukraine, and the reactor room building was destroyed. At the same time, a fire broke out, a large number of radioactive materials leaked out of the reactor, and the surrounding environment was seriously polluted, which caused the most serious accident in the history of nuclear power.
14.1987 September 13, Iania nuclear accident. In Iania, Brazil, a garbage dump worker pried open an abandoned radiotherapy machine and took out a small piece of highly radioactive cesium chloride, which brought disaster to the city. At that time, more than 240 people were exposed to nuclear radiation. Deceived by the bright green of radioactive substances, the children touched and smeared on their skin with their hands, causing pollution in several blocks and had to be removed.
1 5.1988 65438+10 On 6 October, a nuclear power plant in Oklahoma, USA exploded due to improper heating of the cylinder of nuclear material, resulting in1worker death and 100 injury.
16.1992165438+10. In October, the most serious nuclear accident occurred in France: three workers were contaminated after entering a nuclear particle accelerator without wearing protective clothing.
17.1993 April 6, Tomsk -7 nuclear explosion. The Tomsk nuclear accident in Siberia was caused by the explosion of nitric acid while cleaning the container. The explosion caused the recovery and treatment facilities of Tomsk -7 to release radioactive gas clouds. 18. 1999, a radiation leak occurred in a nuclear reactor near Tokyo, killing two workers.
19.1999 September 30, Shinohara nuclear accident. A nuclear accident occurred at the uranium recovery facility in Shojimura, northeast of Tokyo. The workers were mixing liquid uranium when the accident happened.
From 20. 1998 to 2002, six nuclear accidents occurred in nuclear power plants in India in four years.
21.200365438+On February 29th, a nuclear accident occurred in Unit 5 of Korea Rongguang Nuclear Power Station.
22. On August 9th, 2004, another steam leakage accident occurred at Mihama Nuclear Power Station in Fukui Prefecture, central Japan, killing four people and injuring seven others.
23. In May, 2005, the thermal oxygen reprocessing plant of Sellafield Nuclear Power Station in the UK was forced to shut down due to radioactive liquid leakage. On 24.2011March 12, after the earthquake of magnitude 9 occurred in Japan, safety accidents occurred in the first and second nuclear power plants in Fukushima Prefecture, Japan.