Aging Effect of Cs-137 Obtained from Cs-137 in the Kanto Loam Layer from the Fukushima Nuclear Power Plant Accident and in the Nishiyama Loam Layer from the Nagasaki A-bomb Explosion

Ohta, Tomoko; Mahara, Yasunori; Kubota, Takumi et al.

Analytical sciences, 2013, 29(10), 941-947

Permalink : https://hdl.handle.net/2115/54528

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アクセス権
open access
URI
https://hdl.handle.net/2115/54528
タイトル
Aging Effect of Cs-137 Obtained from Cs-137 in the Kanto Loam Layer from the Fukushima Nuclear Power Plant Accident and in the Nishiyama Loam Layer from the Nagasaki A-bomb Explosion
著者
Ohta, Tomoko ; Mahara, Yasunori ; Kubota, Takumi ; Igarashi, Toshifumi
著者名
Ohta, Tomoko
著者名
Mahara, Yasunori
著者名
Kubota, Takumi
著者名
Igarashi, Toshifumi
言語
英語
キーワード
Fukushima nuclear power plant accident
cesium-137
Nagasaki A-bomb
aging effect
Kanto loam
Nishiyama loam
migration
発行日
2013-10
出版者
Japan soc analytical chemistry
収録物名
Analytical sciences
巻(号)
29(10)
ページ
941-947
抄録
We measured Cs-134 and Cs-137 in the surface soil of the Kanto loam in the eastern Tokyo metropolitan area and the Nishiyama loam in Nagasaki, Japan. The observed Cs-137 deposition in the Kanto loam from the Fukushima nuclear power plant (NPP) accident ranged from 4.0 to 77 kBq m(-2), which corresponds to 0.3 - 5 times of that in the Nishiyama loam. The Cs-137 retardation factor in the Kanto loam obtained seven months after the Fukusima NPP accident and in the Nishiyama loam after 36 and 38 years from the detonation of the Pu atomic bomb (A-bomb) ranged from 180 to 260 and 2000 to 10000, respectively. This difference in the retardation factors is attributed to an aging effect that corresponds to seven months and 36 to 38 years after the deposition of Cs-137 occurred on the soil minerals.
資源タイプ
学術雑誌論文
出版タイプ
Version of Record
PISSN
0910-6340
関連情報 (isIdenticalTo)
出版社版DOI
https://doi.org/10.2116/analsci.29.941