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1986年苏联切尔诺贝利核电站4号堆发生事故的10天里,共释放出约1.85×10~6TBq的稀有气体和约1.85×10~6TBq的其他核素,污染了世界许多国家。日本离事故地点约8000公里,科学技术厅于4月29日对全日本放射性监测网所属的32个都道府县作出了加强监测的指示,5月3日就发现了切尔诺贝利核电站事故对日本的污染,比预料的要早。日本原子能安全委员会4月30日作出决定,并于5月13日设立了事故调查特别委员会,开始了事故原因及影响的调查和研究。为了有助于该委员会
In 1986, a total of about 1.85 × 10 ~ 6TBq rare gases and about 1.85 × 10 ~ 6TBq other radionuclides were released within 10 days of the Chernobyl nuclear reactor 4 heap pollution, which polluted many countries in the world. Japan about 8,000 kilometers from the site of the accident, the Office of Science and Technology on April 29 to all Japan radioactive monitoring network belongs to 32 prefectures made instructions to strengthen monitoring, on May 3 found the Chernobyl nuclear accident The pollution to Japan is earlier than expected. Japan’s Atomic Energy Safety Committee made a decision on April 30, and on May 13 established an accident investigation special committee to begin the investigation and research on the causes and effects of the accident. To help the committee