[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.

+Add all to schedule

[MAG44-01] Sensitivity study of models and meteorology for local-scale radionuclide transport in the Fukushima Daiichi accident

★Invited Papers

*Xinpeng Li¹, Shuhan Zhuang¹, sheng fang¹ (1.Tsinghua University)

[MAG44-02] Temporal changes in the vertical distributions of Cs-137 in forest roots

*Junko Takahashi¹, Takuya Sasaki¹, Yuichi Onda¹ (1.Center for Research in Isotopes and Environmental Dynamics, University of Tsukuba)

[MAG44-03] Differences in the radiocesium deposition between evergreen coniferous and deciduous broad-leaved forests

*Wataru Sakashita¹, Satoru Miura¹, Naohiro Imamura¹, Shinta Ohashi¹, Masabumi Komatsu¹, Yoshiki Shinomiya¹, Masatake G. Araki¹, Takuya Kajimoto², Masahiro Kobayashi¹, Satoshi Saito³, Shinji Kaneko³ (1.Forestry and Forest Products Research Institute (FFPRI), 2.Tohoku Research Center, FFPRI, 3.Kansai Research Center, FFPRI)

[MAG44-04] Vertical variation in the depositional flux and biomass inventory of radiocesium through stemflow partitioning between tree canopy and trunk

*Zul Hilmi Saidin^1,2, Yuichi Onda², Hiroaki Kato², Janice E. Hudson², Kazuki Nanko³, Delphis F. Levia^4,5 (1.Graduate School of Life and Environmental Sciences, University of Tsukuba, Japan, 2.Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba, Japan, 3.Department of Disaster Prevention, Meteorology and Hydrology, Forestry and Forest Products Research Institute, Japan, 4.Department of Geography and Spatial Sciences, University of Delaware, Newark, Delaware, USA, 5.Department of Plant and Soil Sciences, University of Delaware, Newark, Delaware, USA)

[MAG44-05] ²³⁷Np and Pu isotope ratios in soil, riverbed and reservoir sediments after the Fukushima accident

*Miho Fukuda¹, Jian Zheng¹, Shinnosuke Yamazaki¹, Tatsuo Aono¹ (1.National Institute for Quantum and Radiological Science and Technology, National Institute of Radiological Science)

Discussion (10:15 AM - 10:30 AM)