Prediction of groundwater contamination with 137Cs and 131I from the Fukushima nuclear accident in the Kanto district
Prediction of groundwater contamination with 137Cs and 131I from the Fukushima nuclear accident in the Kanto district
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DOI：
10.1016/j.jenvrad.2011.11.017
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发表时间：
2012-09-01
影响因子：
2.3
通讯作者：
Igarashi, Toshifumi
中科院分区：
文献类型：
--
作者：
Ohta, Tomoko;Mahara, Yasunori;Igarashi, Toshifumi
2011年3月30日至31日，在与福岛县南部接壤的茨城县关东地区采集了土壤和雨水样本，测定了福岛核事故释放的I-131、Cs-134和Cs-137的浓度。柱实验表明，雨水样品中的所有I-131被吸附到阴离子交换树脂上。然而，30%的I-131在穿过土壤层后没有被树脂保留，这表明一部分（131）1与土壤中的有机物结合。关东地区的Cs-137迁移率约为0.6 mm/y，这表明福岛事故后渗入表层土壤的雨水中不太可能发生Cs-137对地下水的污染。(C)2011爱思唯尔有限公司保留所有权利。
We measured the concentrations of I-131, Cs-134, and Cs-137 released from the Fukushima nuclear accident in soil and rainwater samples collected March 30-31, 2011, in lbaraki Prefecture, Kanto district, bordering Fukushima Prefecture to the south. Column experiments revealed that all I-131 in rainwater samples was adsorbed onto an anion-exchange resin. However, 30% of I-131 was not retained by the resin after it passed through a soil layer, suggesting that a portion of (131)1 became bound to organic matter from the soil. The Cs-137 migration rate was estimated to be approximately 0.6 mm/y in the Kanto area, which indicates that contamination of groundwater by Cs-137 is not likely to occur in rainwater infiltrating into the surface soil after the Fukushima accident. (C) 2011 Elsevier Ltd. All rights reserved.