Nuclear Safety Research Center, Japan Atomic Energy Agency 2-4 Shirakara, Tokai-mura, Naka-gun, Ibaraki, Japan 319-1195.
Health Phys. 2021 May 1;120(5):517-524. doi: 10.1097/HP.0000000000001371.
Dose estimation was conducted by assuming landfill disposal of removed soil generated outside the Fukushima Prefecture by each local town and in a lump sum. Because the radioactivity of removed soil is lower than that of specified waste that was generated at Fukushima Prefecture and the radioactivity concentration is 100,000 Bq kg-1 or less, simple landfill covered with 30 cm of non-contaminated soil was used. The exposure doses of loading/unloading, transportation, and landfill workers and the public residing near the repository site were estimated. Furthermore, migration of cesium into groundwater because of precipitation and using the contaminated groundwater for drinking and agricultural water was evaluated, and exposure doses regarding farmers and the ingestion of agricultural products were estimated. It was confirmed that estimated exposure doses during landfill were less than 1 mSv y-1, and those for after landfill were 0.01 mSv y-1.
剂量估算假设福岛县外各地方城镇产生的和一次性产生的移出土壤进行垃圾填埋处置。由于移出土壤的放射性比在福岛县产生的指定废物低，且放射性浓度为 100,000 Bq kg-1 或以下，因此使用了简单的用 30 厘米无污染土壤覆盖的垃圾填埋。估算了装卸、运输和填埋场工人以及居住在储存场附近的公众的暴露剂量。此外，还评估了由于降水导致的铯向地下水的迁移，以及使用受污染的地下水作为饮用水和农业用水的情况，并估算了农民和食用农产品的摄入相关的暴露剂量。确认在垃圾填埋期间的估算暴露剂量小于 1 mSv y-1，而在垃圾填埋之后的暴露剂量为 0.01 mSv y-1。
