Articles | Volume 22, issue 2
https://doi.org/10.5194/acp-22-783-2022
https://doi.org/10.5194/acp-22-783-2022
Research article
 | 
18 Jan 2022
Research article |  | 18 Jan 2022

Reassessment of the radiocesium resuspension flux from contaminated ground surfaces in eastern Japan

Mizuo Kajino, Akira Watanabe, Masahide Ishizuka, Kazuyuki Kita, Yuji Zaizen, Takeshi Kinase, Rikuya Hirai, Kakeru Konnai, Akane Saya, Kazuki Iwaoka, Yoshitaka Shiroma, Hidenao Hasegawa, Naofumi Akata, Masahiro Hosoda, Shinji Tokonami, and Yasuhito Igarashi

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Latest update: 28 May 2024
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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.
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