Articles | Volume 22, issue 2
https://doi.org/10.5194/acp-22-783-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-22-783-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Jan 2022
Research article |
| 18 Jan 2022
| 18 Jan 2022
Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in eastern Japan
Meteorological Research Institute (MRI), Japan Meteorological Agency
(JMA), Tsukuba, Ibaraki 305–0052, Japan
Institute of Radiation Emergency Medicine (IREM), Hirosaki University,
Hirosaki, Aomori 036–8564, Japan
Faculty of Life and Environmental Sciences, University of Tsukuba,
Tsukuba, Ibaraki 305–8572, Japan
Akira Watanabe
Faculty of Symbiotic Systems Science, Fukushima University, Fukushima,
Fukushima 960–1296, Japan
Institute for Climate Change, Fukushima, Fukushima 960–0231, Japan
Masahide Ishizuka
Faculty of Engineering and Design, Kagawa University, Takamatsu,
Kagawa 761–0396, Japan
Kazuyuki Kita
Graduate School of Science and Engineering, Ibaraki University, Mito,
Ibaraki 310–8512, Japan
Yuji Zaizen
Meteorological Research Institute (MRI), Japan Meteorological Agency
(JMA), Tsukuba, Ibaraki 305–0052, Japan
Takeshi Kinase
Institute of Arctic Climate and Environmental Research (IACE), Japan
Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Kanagawa
236–0001, Japan
Meteorological Research Institute (MRI), Japan Meteorological Agency
(JMA), Tsukuba, Ibaraki 305–0052, Japan
Rikuya Hirai
School of Life and Environmental Sciences, University of Tsukuba,
Tsukuba, Ibaraki 305–8572, Japan
Research Center for Advance Science and Technology (RCAST),
University of Tokyo, Meguro, Tokyo 153–0041, Japan
Kakeru Konnai
School of Life and Environmental Sciences, University of Tsukuba,
Tsukuba, Ibaraki 305–8572, Japan
Akane Saya
Meteorological Research Institute (MRI), Japan Meteorological Agency
(JMA), Tsukuba, Ibaraki 305–0052, Japan
Kazuki Iwaoka
National Institute of Radiological Sciences, National Institutes for
Quantum and Radiological Science and Technology, Chiba, Chiba 263–8555,
Japan
Yoshitaka Shiroma
Faculty of Education, University of the Ryukyus, Nishihara, Okinawa
903–0213, Japan
Hidenao Hasegawa
Department of Radioecology, Institute for Environmental Sciences, Rokkasho, Aomori 039–3212,
Japan
Naofumi Akata
Institute of Radiation Emergency Medicine (IREM), Hirosaki University,
Hirosaki, Aomori 036–8564, Japan
Masahiro Hosoda
Institute of Radiation Emergency Medicine (IREM), Hirosaki University,
Hirosaki, Aomori 036–8564, Japan
Shinji Tokonami
Institute of Radiation Emergency Medicine (IREM), Hirosaki University,
Hirosaki, Aomori 036–8564, Japan
Yasuhito Igarashi
Institute for Integrated Radiation and Nuclear Science (KURNS), Kyoto
University, Kumatori, Osaka 590–0494, Japan
Graduate School of Science and Engineering, Ibaraki University, Mito,
Ibaraki 310–8512, Japan
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Short summary
Using a numerical model and observations of surface concentration and depositions, the current study provides quantitative assessments of resuspension, transport, and deposition of radio-Cs in eastern Japan in 2013, which was once deposited to the ground surface after the Fukushima nuclear accident. The areal mean resuspension rate of radio-Cs from the ground to the air is estimated as 0.96 % per year, which is equivalent to 1–10 % of the decreasing rate of the ambient gamma dose in Fukushima.
Using a numerical model and observations of surface concentration and depositions, the current...
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