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

Thu. May 25, 2017 9:00 AM - 10:30 AM Convention Hall A (International Conference Hall 2F)

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), Chairperson:Yasuhito Igarashi(Atmospheric Environment and Applied Meteorology Research Department, Meteorological Research Institute), Chairperson:Kazuyuki Kita(Ibaraki 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.

+Add all to schedule

9:00 AM - 9:15 AM

[MAG34-01] Time series of atmospheric radiocesium just after the accident at two SPM monitoring sites near the Fukushima Daiichi Nuclear Power Plant

*Haruo Tsuruta¹, Yasuji Oura², Mitsuru Ebihara², Toshimasa Ohara³, Yuichi Moriguchi⁴, Teruyuki Nakajima⁵ (1.Remote Sensing Technology Center of Japan, 2.Tokyo Metropolitan University, 3.National Institute for Environmental Studies, 4.The University of Tokyo, 5.Japan Aerospace Exploration Agency)

9:15 AM - 9:30 AM

[MAG34-02] Investigation of chemical and physical properties of radioactive aerosols sampled from SPM tape filters using multiple synchrotron radiation X-ray analyses

*seika onozaki¹, Takahiro Ono¹, Yushin Iizawa¹, Yoshinari Abe¹, Izumi Nakai¹, Kouji Adachi², Yasuhito Igarashi², Yasuji Oura³, Mitsuru Ebihara³, Takafumi Miyasaka⁴, Hisashi Nakamura⁴, Haruo Tsuruta⁵, Yuichi Moriguchi ⁶ (1.Tokyo University of Science, 2.Meteorological Research Institute, 3.Tokyo Metropolitan University, 4.Research Center for Advanced Science and Technology, The University of Tokyo, 5.Remote Sensing Technology Center of Japan, 6.The University of Tokyo)

9:30 AM - 9:45 AM

[MAG34-03] Unsteady source term estimation of the Fukushima dai-ichi release using contributed radiological measurements

*Carolynne Hultquist¹, Guido Cervone¹ (1.Geoinformatics and Earth Observation Laboratory and the Institute for CyberScience, Pennsylvania State University Main Campus)

9:45 AM - 10:00 AM

[MAG34-04] Mechanism of resuspension of radiocesium in summer and autumn

Takuya Nishioka¹, *Kazuyuki Kita¹, Naho Hayashi¹, Takeru Sato¹, Yasuhito Igarashi², Kouji Adachi², Yuji Zaizen², Sakae Toyoda³, Keita Yamada³, Naohiro Yoshida³, Teruya Maki⁴, Masahide Ishizuka⁵, Kazuhiko Ninomiya⁶, Atsushi Shinohara⁶, Hiroshi Okochi⁷, Yoshinari Abe⁸, Izumi Nakai⁸, hiroto kawashima⁹, Jun Furukawa¹⁰, Yuko Hatano¹⁰, Yuichi Onda¹⁰ (1.Faculty of Science, Ibaraki University, 2.Meterorology Research Institute, 3.Tokyo Institute of Technology, 4.Kanazawa University, 5.Kagawa University, 6.Osaka University, 7.Waseda University, 8.Tokyo University of Science, 9.Akita Prefectural University, 10.Tsukuba University)

10:00 AM - 10:15 AM

[MAG34-05] Model inter-comparison of atmospheric Cs-137 from the Fukushima Daiichi Nuclear Power Plant accident

*Kitayama Kyo¹, Yu Morino¹, Masayuki Takigawa², Teruyuki Nakajima³, Hiroshi Hayami⁴, Haruyasu Nagai¹, Hiroaki Terada⁵, Kazuo Saito⁶, Toshiki Shimbori⁶, Mizuo Kajino⁶, Sekiyama Tsuyoshi⁶, Damien Didier⁷, Anne Mathieu⁷, Toshimasa Ohara¹, Haruo Tsuruta^8,9, Yasuji Oura¹⁰, Mitsuru Ebihara¹⁰, Tokushi Shibata¹¹ (1.National Institute for Environmental Studies, 2.Japan Agency for Marine-Earth Science and Technology, 3.Japan Aerospace Exploration Agency, 4.Central Research Institute of Electric Power Industry, 5.Japan Atomic Energy Agency, 6.Meteorological Research Institute, 7.Institut de Radioprotection et de Sûreté Nucléaire, 8.Remote Sensing Technology Center of Japan, 9.University of Tokyo, 10.Tokyo Metropolitan University, 11.Japan Radioisotope Association)

10:15 AM - 10:30 AM

[MAG34-06] Development of meta-database system for radiation monitoring related to the Fukushima Dai-ichi reactor accident.

*Yoshitaka Itow¹ (1.Institute for Space-Earth Environmental Research, Nagoya University)

Session information