April 18, Beijing time, April 2011 marks the 25th anniversary of the Chernobyl nuclear accident in Ukraine. In the early morning of April 26, 1986, the Chernobyl Unit 4 exploded. The accident not only caused a devastating impact on the lives of local residents, but also released radioactive material that has contaminated almost all of Europe. This is the largest accident in the history of the peaceful use of nuclear energy by mankind.
The 9th magnitude earthquake on March 11 in Japan and the tsunami triggered by it have occurred for one month. At the same time, the worrying crisis at the Fukushima Daiichi nuclear power plant has also continued for a month. Japan’s Atomic Energy Safety and Security Institute decided on the morning of the 12th that the nuclear leakage level at the Fukushima Daiichi nuclear power plant will be upgraded from the current level 5 to level 7. This means that the nuclear leakage at the Fukushima Daiichi nuclear power plant reached the same level as that of the Chernobyl nuclear power plant, which is the highest level.
Japan’s Atomic Energy Safety and Security Institute stated that this was re-verified according to the standards set by the International Nuclear Leakage Assessment Agency ZNES. However, the Security Bureau said that although the nuclear pollution of the Fukushima nuclear power plant is relatively large, the nuclear radiation is much lower than that of the Chernobyl nuclear power plant.
According to reports, on April 4, the seawater near the intake of No. 2 unit of the Fukushima Daiichi Nuclear Power Station was sampled. The concentration of iodine-131 exceeded the national standard of Japan by 5 million times, and the concentration of thorium-137 exceeded 1.1 million times. Nearly one-third of Japan’s tap water has detected radioactive contamination, and about one-third of the area’s tap water has been polluted by nuclear pollution. The populace has rushed to purchase mineral water. At the same time, Japan’s nuclear-pollution foods continued to expand. Following the production of vegetables and dairy products, the Ministry of Health, Labour and Welfare announced that mushrooms in the cities of Fukushima Prefecture had detected excessive levels of radioactive iodine and radon. The authorities demanded that farmers stop shipping.
On April 7, the environmental protection department monitored the trace amounts of artificial radionuclides released from the Japan nuclear accident in some regions outside Guizhou, including 30 provinces (cities, districts) in China. The other is in Heilongjiang and Jilin. , Liaoning, Beijing, Tianjin, Hebei, Henan, Shanxi, Shandong, Shanghai, Jiangsu, Zhejiang, Anhui, Fujian, Jiangxi, Hubei, Hunan, Guangdong, Chongqing, Shaanxi, Ningxia, Xinjiang and other 22 provinces (autonomous regions and municipalities) To a lesser amount of radionuclides 铯-137 and 铯-134. A very small amount of radioactive iodine-131 was found in the lettuce leaves of Jiangsu Province and the leek in Guangdong Province. There is no abnormality in the sampling and monitoring of drinking water. Combined with the analysis of radiation environment monitoring data in recent years, it has initially confirmed that the artificial radionuclides detected in various places come from the nuclear accident in Fukushima, Japan. Various kinds of nuclear pollution have caused the public some degree of panic. They need nuclear experts to appear and represent rational voices on behalf of the scientific community.
Science will meet with face to face on April 20, 2011 at 2:00-4:30 pm, and in Room B103 of the China Science and Technology Hall, invites three experts to combine Japan's nuclear leak accidents, popularize knowledge of nuclear pollution, eliminate public concerns and panic, and cultivate public science And rational consciousness guides correct social opinion and maintains social order stability.
1. Expert host: Chen Zhuzhou.
Brief introduction: Professor of China Nuclear Power Group Science and Technology Committee Research Institute, member of the expert group of the National Nuclear Accident Emergency Coordination Committee, and the fifth general secretary of China Nuclear Society.
2. Fu Manchang
Brief introduction: Researcher Gao Gong, once served as the sixth general secretary of the China Nuclear Society, a member of the National Science and Technology Awards Committee, and director of the Department of Science and Technology and International Cooperation of China National Nuclear Corporation. He graduated from the First Middle School of Dandong City in 1960, graduated from Electrophysics Department of Physics Department of Harbin Institute of Technology in 1965, studied as a visiting scholar at the Department of Analysis Science of the University of Manchester, and worked in the Second Institute of Nuclear Industry from 1970 to 1989. -In 1993, he participated in the construction of Daya Bay nuclear power plant as the captain of the Nuclear Technology Industry Research Institute stationed in the Daya Bay Famatong Design Team, and later became the leader of the preparatory group for the independent nuclear power plant project. In 1994, he served as the president of the Second Nuclear Industry Institute, August 1994-February 1996. Director of Nuclear Power Bureau of China National Nuclear Corporation, from March 1996 to April 1999, served as Counselor to the Deputy Permanent Representative of the Chinese Permanent Mission to the International Atomic Energy Agency; from July 1999 to July 2002, he served as China National Nuclear Corporation’s technology and international The director of the Cooperation Department retired and went to China National Nuclear Corporation to appoint science and technology committee members. In September 2002, he went to the China Nuclear Society as secretary-general.
3. Zhou Pingkun
Introduction: Zhou Pingkun, male, born in September 1963, Hunan Hengshan, MD. He is a research fellow at the Institute of Radiation Medicine and Radiation Medicine of the Academy of Military Medical Sciences, a tutor of doctoral students, director of the Academic Committee of the Institute, chief scientist of the National "973" Project, and winner of the National Outstanding Youth Fund. He graduated from the Hunan Medical College (now Xiangya Medical School, Central South University) in 1985 with a bachelor's degree in medicine. He graduated from the Academy of Military Medical Sciences in July 1990 with a master's degree in biochemistry. He graduated in military medicine in July 2004. College of Health Sciences, Department of Hygiene Toxicology, Doctor of Medicine. The main academic part-time job is members of the 1st Committee of the International Committee on Radiological Protection (ICRP), vice chairman and secretary-general of the Chinese Society of Toxicology, director of the China Nuclear Society, and member of the Standing Committee of the Radiation Medicine and Protection Branch of the Chinese Medical Association.