JpGU-AGU Joint Meeting 2020

Session information

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[J] Oral

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

[M-AG44] Dynamics of radionuclides emitted from Fukushima Dai-ichi Nuclear Power Plant in the environment

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

The Great East Japan Earthquake caused the severe accident in the 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. This session focus on 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, furthermore, to develop as global migration studies by generalization, 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.

[MAG44-06] Impact of decontamination and the occurrence of typhoons on the sources supplying sediment and radiocesium to Fukushima coastal rivers (2011–2019)

★Invited Papers

*Olivier Evrard1, Roxanne Durand1, Seiji Hayashi2, Hideki Tsuji2, Yoshifumi Wakiyama3, Yuichi Onda4, Irène Lefèvre1, Atsushi Nakao5, J. Patrick Laceby6 (1.Laboratoire des Sciences du Climat et de l'Environnement (LSCE, joint laboratory CEA-CNRS-UVSQ), University Paris-Saclay, France, 2.National Institute of Environmental Studies (NIES), Fukushima Branch, Japan, 3.Institute of Environmental Radioactivity (IER), Fukushima University, Japan, 4.Center for Research in Isotopes and Environmental Dynamics (CRIED), University of Tsukuba, Japan, 5.Graduate School of Life and Environmental Sciences, Kyoto Prefectural University (KUP), Japan, 6.Environmental Monitoring and Science Division (EMSD), Alberta Environment and Parks (AEP), Calgary, Alberta, Canada)

Discussion (12:00 PM - 12:15 PM)