Articles | Volume 22, issue 1
https://doi.org/10.5194/acp-22-675-2022
© 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-22-675-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Jan 2022
Research article |
| 17 Jan 2022
| 17 Jan 2022
Eight-year variations in atmospheric radiocesium in Fukushima city
Akira Watanabe
CORRESPONDING AUTHOR
Faculty of Symbiotic Systems Science, Fukushima University, Fukushima,
Fukushima 960-1296, Japan
Institute for Climate Change, Fukushima, Fukushima 960-0231, Japan
Meteorological Research Institute (MRI), Japan Meteorological Agency
(JMA), Tsukuba, Ibaraki 305-0052, Japan
Faculty of Life and Environmental Sciences, University of Tsukuba,
Tsukuba, Ibaraki 305-8572, Japan
Institute of Radiation Emergency Medicine (IREM), Hirosaki, Aomori
036-8564, Japan
Kazuhiko Ninomiya
CORRESPONDING AUTHOR
Graduate School of Science, Osaka University, Toyonaka, Osaka
560-0043, Japan
Institute for Radiation Sciences, Osaka University, Toyonaka, Osaka
560-0043, Japan
Yoshitaka Nagahashi
Faculty of Symbiotic Systems Science, Fukushima University, Fukushima,
Fukushima 960-1296, Japan
Atsushi Shinohara
Graduate School of Science, Osaka University, Toyonaka, Osaka
560-0043, Japan
Faculty of Health Science, Osaka Aoyama University, Minoh, Osaka
562-8580, Japan
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Short summary
This study summarizes continuous measurements of surface air concentrations and deposition of radiocesium in Fukushima city over 8 years after the Fukushima nuclear accident. The concentration in the city was high in winter and low in summer (inverse of the forest area). The decreasing trends were much faster in the earlier stage, probably because dissolved cesium discharged faster from the local environment. Biotite might play a key role in circulation of particulate cesium in Fukushima city.
This study summarizes continuous measurements of surface air concentrations and deposition of...
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