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Radioactivity impacts of the Fukushima Nuclear Accident on the atmosphere
Abstract The Fukushima Nuclear Accident (FNA) resulted in a large amount of radionuclides released into the atmosphere and dispersed globally, which has greatly raised public concerns. The state of the art for source terms of 19 kinds of radionuclides derived from the FNA was comprehensively collected and compared with levels of the global fallout and the Chernobyl Nuclear Accident (CNA). The atmospheric impacts of the FNA were evaluated from three aspects including radioactive baseline of the atmosphere, the concentration limits in standards and radiological protection. The FNA should not impose significant radiological risk on the public members in the countries excluding Japan. A conceptual scheme of Fukushima-derived radionuclides with physical and physicochemical insights on different temporal–spatial timescales was discussed and illustrated to understand their fates in the atmosphere.
Highlights The radioactive source terms from the FNA were comprehensively collected. Natural atmospheric radionuclides with total activity of 1–100 Bq/m3 were discussed. The peak activity from the FNA was less than 1‰ of that in national standards. The effective dose from the FNA for public excluding Japanese was about 71 nSv. A conceptual scheme of atmospheric radionuclides from the FNA was illustrated.
Radioactivity impacts of the Fukushima Nuclear Accident on the atmosphere
Abstract The Fukushima Nuclear Accident (FNA) resulted in a large amount of radionuclides released into the atmosphere and dispersed globally, which has greatly raised public concerns. The state of the art for source terms of 19 kinds of radionuclides derived from the FNA was comprehensively collected and compared with levels of the global fallout and the Chernobyl Nuclear Accident (CNA). The atmospheric impacts of the FNA were evaluated from three aspects including radioactive baseline of the atmosphere, the concentration limits in standards and radiological protection. The FNA should not impose significant radiological risk on the public members in the countries excluding Japan. A conceptual scheme of Fukushima-derived radionuclides with physical and physicochemical insights on different temporal–spatial timescales was discussed and illustrated to understand their fates in the atmosphere.
Highlights The radioactive source terms from the FNA were comprehensively collected. Natural atmospheric radionuclides with total activity of 1–100 Bq/m3 were discussed. The peak activity from the FNA was less than 1‰ of that in national standards. The effective dose from the FNA for public excluding Japanese was about 71 nSv. A conceptual scheme of atmospheric radionuclides from the FNA was illustrated.
Radioactivity impacts of the Fukushima Nuclear Accident on the atmosphere
Atmospheric Environment ; 102 ; 311-322
21.11.2014
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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