[M-AG34] [EJ] Dynamics of radionuclides emitted from Fukuchima Dai-ichi Nuclear Power Plant in the environment

Wed. May 24, 2017 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall HALL7)

convener:Kazuyuki Kita(Faculty of Science, Ibaraki University), Yuichi Onda(Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba), Yasuhito Igarashi(Atmospheric Environment and Applied Meteorology Research Department, Meteorological Research Institute), Masatoshi Yamada(Institute of Radiation Emergency Medicine, Hirosaki University)

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.

[MAG34-P01] Radioactive cesium-bearing particles in various environmental samples

*Yuichi Kurihara¹, Hikaru Miura¹, Toshihiro Kogure¹, Noriko Yamaguchi², Shogo Higaki³, Aya Sakaguchi⁴, Yuichi Onda⁵, Masayoshi Yamamoto⁶, Kazuya Tanaka⁷, Jota Kanda⁸, Takashi Ishimaru⁸, Yoshio Takahashi¹ (1.Department of Earth and Planetary Science, Graduate School of Science, The university of Tokyo, 2.National Institute for Agro-Environmental Sciences, 3.Radioisotope Center, The university of Tokyo, 4.Faculty of Pure and Applied Science, University of Tsukuba, 5.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 6.Low Level Radioactivity Laboratory, Kanazawa University, 7.Japan Atomic Energy Agency, 8.Tokyo University of Marine Science and Technology)

[MAG34-P02] Atmospheric radioCs in case of the local dust event

*Yasuhito Igarashi¹, Mizuo Kajino¹, Masamitsu Hayasaki², Kouji Adachi¹, Yuji Zaizen³, Thomas Sekiyama¹ (1.Atmospheric Environment and Applied Meteorology Research Department, Meteorological Research Institute, 2.Center for Regional Environmental Research, National Institute for Environmental Studies , 3.Forecast Research Department, Meteorological Research Institute)

[MAG34-P03] Long-term Changes in the Distribution of Atmospherically Deposited Radioactive Cs in a Small Forest in Fukushima Prefecture

Shuntaro Kinno¹, *Hiroshi Okochi¹, Hiroto Kuroshima¹, Naoya KATSUMI¹, Hiroko Ogata¹, Jun Kataoka², Aya KISHIMOTO², Yasuhiro IWAMOTO², Atsuyuki SORIMACHI³, Shinji TOKONAMI⁴ (1.School of Science and Engineering, Waseda University,, 2.School of Advanced Science and Engineering, Waseda University, 3. School of Medicine, Fukushima Medical University, 4.Institute of Radiation Emergency Medicine, Hirosaki University )

[MAG34-P04] Radioactive Cs distribution of litter and soil in forests in each kind tree for 5years after Fukushima Dai-ichi Nuclear Power Plant accident

*Toshiro Yamaguchi¹, Yuichi Onda¹, Hiroaki Kato¹ (1.Center for Research Isotopes and Environmental Dynamics, University of Tsukuba)

[MAG34-P05] Temporal changes of Cs-137 concentration and its flux (dissolved fraction, suspended sediment, and coarse organic matter) at small Headwater Catchment in Fukushima after Fukushima Dai-ichi Nuclear Power Plant Accident

*Sho Iwagami¹, Maki Tsujimura², Yuichi Onda¹, Koichi Sakakibara², Yutaro Sato², Kosuke Nagano² (1.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba, 2.Graduate School of Life and Environmental Sciences, University of Tsukuba)

[MAG34-P06] Dynamic association of radioactive cesium between sediment and suspended sediment in river

*XIANG GAO¹, Yuichi Onda², Keisuke Taniguchi³ (1.Master's Program in Environmental Sciences,University of Tsukuba , 2.Center for Research on Isotopes and Environmental Dynamics,University of Tsukuba, 3.Centre for Environmental Creation Fukushima Prefecture)

[MAG34-P07] Distributions of radiocaesium activity in sediment and overlying water off the Fukushima

*Miho Fukuda¹, Shinnosuke Yamazaki¹, Tatsuo Aono¹, Takashi Ishimaru², Jota Kanda² (1.National Institute for Quantum and Radiological Science and Technology, National Institute of Radiological Science, 2.Tokyo University of Marine Science and Technology)

[MAG34-P08] Fukushima-derived radiocesium in the western subtropical gyre of the North Pacific Ocean in 2015/2016

*Yuichiro Kumamoto¹, Michio Aoyama², Yasunori Hamajima³, Eitrou Oka⁴, Akihiko Murata¹ (1.Japan Agency for Marine-Earth Science and Technology, 2.Fukushima University, 3.Kanazawa University, 4.University of Tokyo)

[MAG34-P09] Estimate of spatial and temporal variation of radiocaesium amount derived FNPP1 accident in the North Pacific Ocean

*Yayoi Inomata¹, Michio Aoyama², Takaki Tsubono³, Daisuke Tsumune³, Masatoshi Yamada⁴ (1.Kanazawa University, Institute of Nature and Environmental Technology, 2.Fukushima University, Institute of Environmental Radioactivity, 3.Central Research Institute of Electric Power Industry, 4.Hirosaki University, Institute of radiation emergency medicine)

Session information