The reducing rate of radiocesium Cs-137 in the North Pacific surface water after the TEPCO fukushima Dai-ichi nuclear power plant accident

Imai, Keiri; Watanabe, Yutaka W.

Journal of radioanalytical and nuclear chemistry, 2022, 331(9), 3847-3855

Permalink : https://hdl.handle.net/2115/90616

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/90616
タイトル
The reducing rate of radiocesium Cs-137 in the North Pacific surface water after the TEPCO fukushima Dai-ichi nuclear power plant accident
著者
e-Rad_Researcher
40725983
著者名
Imai, Keiri
e-Rad_Researcher
90333640
著者名
Watanabe, Yutaka W.
言語
英語
キーワード
Fukushima Dai-ichi nuclear power plant accident
Cs-137
North Pacific Ocean
Reducing rate
発行日
2022-09
出版者
Springer
収録物名
Journal of radioanalytical and nuclear chemistry
巻(号)
331(9)
ページ
3847-3855
抄録
We started monitoring the radiocesium released from Fukushima in the North Pacific surface water from May 2011 after the accident soon to June 2016, using the cruise of the Oshoro-maru of Hokkaido University. We found that the reducing rate from the ocean surface of Cs-137 regardless of the distance from Fukushima was almost constant at 0.0033 +/- 0.0005 day(-1). This finding indicated that 96% of Cs-137 in the surface water over the North Pacific were removed by 1000 days after the accident from the surface water to the ocean interior excluding the decrease by radioactive disintegration.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/DOI:10.1007/s10967-022-08403-0
PISSN
0236-5731
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s10967-022-08403-0