Japan Geoscience Union Meeting 2015

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

[M-AG38] Dynamics of radionuclides emitted from Fukuchima Dai-ichi Nuclear Power Plant in the environment

Tue. May 26, 2015 4:15 PM - 6:00 PM 301B (3F)

Convener:*Kazuyuki Kita(Faculty of Science, Ibaraki University), Yuichi Onda(Center for Research on Isotopes and Environmental Dynamics, University of Tsukuba), Teruyuki Nakajima(Atmosphere and Ocean Research Institute), Yasuhito Igarashi(Atmospheric Environment and Applied Meteorology Research Department, Meteorological Research Institute), Masatoshi Yamada(Institute of Radiation Emergency Medicine, Hirosaki University), Chisato Takenaka(Graduate school of bioagricultural sciences, Nagoya University), masayoshi yamamoto(Low Level Radioactivity Laboratory, Kanazawa University), Atsushi Shinohara(Graduate school of science, Osaka University), Chair: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.

4:15 PM - 4:30 PM

[MAG38-22] 134Cs and 137Cs in the North Pacific Ocean derived from the TEPCO Fukushima Dai-ichi Nuclear Power Plant accident

*Michio AOYAMA1, Yasunori HAMAJIMA2, Mikael Hult3, Mitsuo UEMATSU4, Eitarou OKA4, Daisuke TSUMUNE5, Yuichiro KUMAMOTO6 (1.Institute of Environmental Radioactivity, Fukushima University, 2.Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa Unive, 3.European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM, 4.Center for International Collaboration ,Atmosphere and Ocean Research Institute, The University of T, 5.Environmental Science Research Laboratory, Central Research Institute of Electric Power Industry, 6.Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology)

5:18 PM - 5:21 PM

[MAG38-P10] The distributions and behavior of radiocaesium according to grain sizes in sediments after the FDNPS accident

3-min talk in an oral session

*Miho FUKUDA1, Shinnosuke YAMAZAKI1, Tatsuo AONO1, Satoshi YOSHIDA1, Sho NAGANUMA2, Atsushi KUBO2, Keishi SHIMADA2, Nobue TAKASAWA2, Takuji HOSAKA2, Kenichiro SATO3, Seiya YAMAGUCHI2, Yukari ITO2, Takashi ISHIMARU2, Jota KANDA2 (1.National institute of Radiological Science (NIRS), 2.Tokyo University of Marine Science and Technology, 3.Marine Works Japan)