日本川崎市土壤中放射性铯的定点观测与特征描述。
FIXED-POINT OBSERVATION AND CHARACTERIZATION OF RADIOACTIVE CS IN SOIL COLLECTED AT KAWASAKI, JAPAN.
机构信息
Graduate School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa, Japan.
School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama -ku, Kawasaki, Kanagawa, Japan.
出版信息
Radiat Prot Dosimetry. 2022 Sep 9;198(13-15):1030-1035. doi: 10.1093/rpd/ncac043.
Radioactive Cs derived from the Fukushima Daiichi Nuclear Power Plant accident was detected in soils sampled at Kawasaki, Japan. Radioactive Cs adsorbed on soil is hard to be removed. Fixed-point observation of radioactive Cs concentration was performed on two observation sites of Meiji University. The soil samples were also analyzed for the distribution of radioactive Cs concentration and chemical form. 10 years after the accident, the activity concentration of radioactive Cs in soil samples at the Ikuta Campus of Meiji University ranged from 127 to 448 Bq kg-1. The sequential extraction method results indicated that most radioactive Cs in the surface soil exists in a poorly soluble form.
在日本川崎采集的土壤样本中检测到了来自福岛第一核电站事故的放射性铯。吸附在土壤上的放射性铯很难被去除。在明治大学的两个观测点进行了放射性铯浓度的定点观测。还分析了土壤样品中放射性铯浓度的分布和化学形态。事故发生 10 年后，明治大学生田校区土壤样本中的放射性铯活度浓度范围为 127 至 448 Bq kg-1。顺序提取法的结果表明，表层土壤中的大部分放射性铯以难溶性形式存在。
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