Following the Fukushima nuclear accident in March 2011, decontamination and related works have been carried out over a wide area, mainly in Fukushima Prefecture. In November 2013, the Radiation Dose Registration and Management System for Decontamination Workers was established to manage the occupational exposure doses of workers engaged in such work. The Radiation Effects Association mainly operates the registration system. This paper summarizes existing reports on this system and occupational health issues among decontamination workers. We collected previous reports and related regulatory laws on occupational health management for decontamination workers working in Fukushima Prefecture, summarized the outline of the radiation dose registration and management system for these decontamination workers, and discussed future issues related to their health management. Approximately 100 000 decontamination workers were registered in the system as of 2020, but none showed radiation doses that exceeded the dose limit. To our knowledge, there have been no reports of decontamination workers presenting physical symptoms suspected to be related to radiation exposure. On the other hand, heatstroke countermeasures and anxiety about radiation exposure have been reported as possible issues in the occupational health management of decontamination workers. Although decontamination workers are unlikely to experience biological effects from radiation exposure, epidemiological studies are needed to examine this evidence. Further analysis is also needed on non-radiation effects, which pose occupational health concerns for decontamination workers. The registration system would allow for tracking decontamination workers, providing data for analyzing radiological and non-radiological effects.

中文翻译：

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洗消人员辐射受照剂量登记制度及其职业健康管理概述

2011 年 3 月发生福岛核事故后，以福岛县为中心，在广大地区开展了去污等相关工作。2013年11月，建立了《洗消人员辐射剂量登记管理制度》，对从事洗消工作人员的职业照射剂量进行管理。辐射效应协会主要运营注册制。本文总结了有关该系统和去污工人职业健康问题的现有报告。我们收集了在福岛县工作的去污工人职业健康管理的以往报告和相关法规，总结了这些去污工人的辐射剂量登记和管理制度的概要，并讨论了与他们的健康管理相关的未来问题。截至 2020 年，该系统登记了大约 10 万名去污工作人员，但没有人显示辐射剂量超过剂量限值。据我们所知，目前还没有关于净化工人出现疑似与辐射暴露有关的身体症状的报告。另一方面，中暑对策和对辐射暴露的焦虑已被报告为净化工人职业健康管理中可能存在的问题。尽管净化工作人员不太可能受到辐射暴露的生物学影响，但仍需要进行流行病学研究来检验这一证据。还需要对非辐射效应进行进一步分析，这会给净化工人带来职业健康问题。