2017年1月
Vertical distributions of global fallout Cs-137 and C-14 in a Japanese forest soil profile and their implications for the fate and migration processes of Fukushima-derived Cs-137
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
- ,
- ,
- ,
- 巻
- 311
- 号
- 1
- 開始ページ
- 473
- 終了ページ
- 481
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s10967-016-4938-7
- 出版者・発行元
- SPRINGER
Vertical distributions of global fallout Cs-137 and C-14 were investigated in a Japanese forest soil in 2001. Even 38 years after the fallout, Cs-137 was still observed mostly in the uppermost 5 cm. A preferential accumulation of Cs-137 was found in a 1-cm-thick transition layer between organic-rich A and underlying B horizons. This unique observation indicated that Cs-137 migrated through the A horizon at a rate of 0.20 % year(-1) and the transition layer acted as a barrier for Cs-137 migration to deeper layers. The vertical distributions of Cs-137 and C-14 were significantly correlated, suggesting a coupled downward migration of Cs-137 and organic matter on a time scale of decades, along the same physical pathways.
- リンク情報
- ID情報
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- DOI : 10.1007/s10967-016-4938-7
- ISSN : 0236-5731
- eISSN : 1588-2780
- ORCIDのPut Code : 29265277
- Web of Science ID : WOS:000392075200050