Journal
JOURNAL OF RADIATION RESEARCH
Volume 64, Issue 1, Pages 2-10Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jrr/rrac079
Keywords
governmental policy; Fukushima Daiichi Nuclear Power Plant (FDNPP) accident; external exposure assessment; difficult-to-return areas; simulation
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This article reviews the efforts made by the Japanese government and research institutes to assess radiation doses to residents after the Fukushima Daiichi Nuclear Power Plant accident, and summarizes the methods to determine individual radiation doses that residents need to consider after the evacuation order is lifted.
The evacuation order areas established due to the accident at the Tokyo Electric Power Company Holdings' (TEPCO) Fukushima Daiichi Nuclear Power Plant (FDNPP) have been reorganized according to the decrease in ambient dose rates and the decontamination progress. The Japanese government decided to decontaminate the difficult-to-return areas and lift the evacuation order by 2030. This radiation protection strategy can be optimized by examining emergency exposure situations to date and the existing exposure after the accident. This article reviews the methods that can determine the individual radiation doses of residents who should return to their homes when the evacuation order is lifted in the specific reconstruction reproduction base area and the difficult-to-return areas outside this base area and summarizes the points to be considered when implementing these methods. In Part 1 of this article, we review the efforts made by the Japanese government and research institutes to assess radiation doses to residents after the FDNPP accident.
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