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The reducing rate of radiocesium Cs-137 in the North Pacific surface water after the TEPCO fukushima Dai-ichi nuclear power plant accident
| Title: | The reducing rate of radiocesium Cs-137 in the North Pacific surface water after the TEPCO fukushima Dai-ichi nuclear power plant accident |
| Authors: | Imai, Keiri Browse this author →KAKEN DB | | Watanabe, Yutaka W. Browse this author →KAKEN DB |
| Keywords: | Fukushima Dai-ichi nuclear power plant accident | | Cs-137 | | North Pacific Ocean | | Reducing rate |
| Issue Date: | Sep-2022 |
| Publisher: | Springer |
| Journal Title: | Journal of radioanalytical and nuclear chemistry |
| Volume: | 331 |
| Issue: | 9 |
| Start Page: | 3847 |
| End Page: | 3855 |
| Publisher DOI: | 10.1007/s10967-022-08403-0 |
| Abstract: | 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. |
| Rights: | 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 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/90616 |
| Appears in Collections: | 水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 今井 圭理
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