10-year variation of atmospheric Cs radioactivity concentration observed at highly polluted area in Fukushima

Kazuyuki Kita, Naho Hayashi, Peng Tang, Kotaro Hatanaka, Takeshi Kinase, Kouji Adachi, Yuji Zaizen, Ishizuka Masahide, Jun Furukawa, Yuko Hatano, Keisuke Sueki, Yuichi Onda, Kazuhiko Ninomiya, SHINOHARA ATSUSHI, Sakae Toyoda, Keita Yamada, Naohiro Yoshida, Yukihiko Satou, Yasuhito Igarashi

Presentation information

[J] Oral

M (Multidisciplinary and Interdisciplinary) » M-AG Applied Geosciences

[M-AG38] Ten years after the Fukushima Dai-ichi NPP Accident : Dynamics of radionuclides in the environment

Sun. Jun 6, 2021 1:45 PM - 3:15 PM Ch.09 (Zoom Room 09)

convener:Daisuke Tsumune(Central Research Institute of Electric Power Industry), Yuichi Onda(Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba), Kazuyuki Kita(Faculty of Science, Ibaraki University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Chairperson:Yuichi Onda(Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba), Daisuke Tsumune(Central Research Institute of Electric Power Industry)

2:00 PM - 2:15 PM

[MAG38-02] 10-year variation of atmospheric Cs radioactivity concentration observed at highly polluted area in Fukushima

*Kazuyuki Kita¹, Naho Hayashi¹, Peng Tang¹, Kotaro Hatanaka¹, Takeshi Kinase², Kouji Adachi², Yuji Zaizen², Ishizuka Masahide⁵, Jun Furukawa³, Yuko Hatano³, Keisuke Sueki³, Yuichi Onda³, Kazuhiko Ninomiya⁴, SHINOHARA ATSUSHI⁴, Sakae Toyoda⁶, Keita Yamada⁶, Naohiro Yoshida⁶, Yukihiko Satou⁷, Yasuhito Igarashi⁸ (1.Faculty of Science, Ibaraki University, 2.Meteorological Research Instutite, 3.Tsukuba University, 4.Osaka University, 5.Kagawa University, 6.Tokyo Institute of Technology, 7.JAEA, 8.University of Kyoto)

Keywords:radiocesium, atmospheric radioacitity

Contineous obeservation of atmospheric activity concentration of radiocesium has been carried out at sites in highly polluted area in Fukushima for about 10 years from 2011. Reviews on trend and sesonal variation of atmospheric activity concentration and their causes, as well as atmospheric resuspension of insoluble Cs particles (CsMP) will be presented.