[M-AG33] Dynamics of radionuclides emitted from Fukuchima Dai-ichi Nuclear Power Plant in the environment

Sun. May 20, 2018 9:00 AM - 10:30 AM A02 (Tokyo Bay Makuhari Hall)

convener:Kazuyuki Kita(Faculty of Science, Ibaraki University), Yuichi Onda(Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba), SHINOHARA ATSUSHI(大阪大学, 共同), Daisuke Tsumune(Central Research Institute of Electric Power Industry), Chairperson:Tsumune Daisuke(Central Research Institute of Electric Power Industry)

The Great East Japan Earthquake caused the severe accident in TEPCO Fukushima dai-ichi nuclear power plant (FDNPP), leading to emission of huge amount of radionuclides to the environment. They have been transported and diffused by atmospheric motion, depositing them to soil and vegetation. Deposited radionuclides are dynamically shifted in the earth environment; atmosphere, soil, inland water, ocean, and ecosystem. To understand this dynamic shift in the environment and for the long-term prediction of the disaster by the radionuclides, investigation and discussion based on not only the earth sciences including ecology but also on the radiochemistry and other related sciences.
In this session, various efforts to understand the dynamic behavior of radionuclides emitted from FDNPP accident in the earth system as well as to predict their influences on the environment. It is expected that this session will offer a good opportunity to discuss radionuclides in the earth environment from wide aspect and to exchange information in various research fields.

+Add all to schedule

Introduction (9:00 AM - 9:15 AM)

9:15 AM - 9:30 AM

[MAG33-01] Time series of Cs-137 activity Inventory in the North Pacific Ocean Water from 1945 to 2020 by using eddy-resolving ROMS

*Tsubono Takaki¹, Kazuhiro Misumi¹, Daisuke Tsumune¹, Michio Aoyama², Katsumi Hirose³ (1.Central Research Institute of Electric Power Industry, 2.Fukushima University, 3.Sophia University)

9:30 AM - 9:45 AM

[MAG33-02] Rapid recirculation of FNPP1 derived radiocaesium suggesting new pathway of subtropical mode water in the western North Pacific to the Sea of Japan

*Yayoi Inomata¹, Michio Aoyama², Yasunori Hamajima¹, Masatoshi Yamada³ (1.Kanazawa University, Institute of Nature and Environmental Technology, 2.Fukushima University, Institute of Environmental Radioactivity, 3.Hirosaki University, Institute of Radiation Emergency Medicine)

9:45 AM - 10:00 AM

[MAG33-03] Study on behaviour of radiocaesium and tritium at Fukushima Coast

*Michio Aoyama¹ (1.Institute of Environmnetal Radioactivity, Fukushima University)

10:00 AM - 10:15 AM

[MAG33-04] Characteristics of radiocesium-bearing microparticles and Type B particles using multiple synchrotron radiation X-ray analyses

*Hikaru Miura^1,2, Yuichi Kurihara², Masayoshi Yamamoto³, Noriko Yamaguchi⁴, Aya Sakaguchi⁵, Shogo Higaki⁶, Yoshio Takahashi² (1.Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 2.Department of science, Graduate school of The university of Tokyo , 3.Low Level Radioactivity Laboratory, University of Kanazawa, 4.Institute for Agro-Environmental Sciences, NARO, 5.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 6.Isotope Science Center, The University of Tokyo)

10:15 AM - 10:30 AM

[MAG33-05] Exchange of radiocesium between sediment and pore water in the coast off Fukushima

*Shigeyoshi Otosaka¹, Miho Fukuda², Tatsuo Aono² (1.Japan Atomic Energy Agency, 2.National Institutes for Quantum and Radiological Science and Technology)

Session information