Prediction of groundwater contamination with 137Cs and 131I from the Fukushima nuclear accident in the Kanto district

被引：31

作者：

Ohta, Tomoko ^{[1
]}

Mahara, Yasunori ^{[2
]}

Kubota, Takumi ^{[2
]}

Fukutani, Satoshi ^{[2
]}

Fujiwara, Keiko ^{[2
]}

Takamiya, Koichi ^{[2
]}

Yoshinaga, Hisao ^{[2
]}

Mizuochi, Hiroyuki ^{[3
]}

Igarashi, Toshifumi ^{[1
]}

机构：

[1] Hokkaido Univ, Fac Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan

[2] Kyoto Univ, Inst Res Reactor, Kumatori, Osaka 5900494, Japan

[3] Sumiko Resources Explorat & Dev Co Ltd, Ikenohashi, Taitou Ku, Tokyo 1100008, Japan

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2012年 / 111卷

关键词：

Cesium-137; Environmental radioactivity; Fukushima nuclear accident; Iodine-131; Rainwater; SOIL; MIGRATION; NAGASAKI;

D O I：

10.1016/j.jenvrad.2011.11.017

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：38 / 41

页数：4

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