Japan Geoscience Union Meeting 2014

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Oral

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

[M-AG38_2AM1] Dynamics of radionuclides emitted from Fukuchima Dai-ichi Nuclear Power Plant in the environment

Fri. May 2, 2014 9:00 AM - 10:45 AM 501 (5F)

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), Jun Matsumoto(Deaprtment of Geography, Tokyo Metropolitan University), 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), jota kanda(Tokyo University of Marine Science and Technology), atsushi shinohara(Osaka university), Chair:Kazuyuki Kita(Faculty of Science, Ibaraki University)

9:15 AM - 9:30 AM

[MAG38-02] Measurement of Cs-137 in atmopshieric aerosols in Fukushima prefecture and the surrounding area

*Kazuhiko NINOMIYA1, Zijang ZHANG1, Yuji OSUMI1, Shizuka MATSUNAGA1, Shunsuke KAKITANI1, Yoshiaki YAMAGUHI2, Haruo TSURUTA3, Akira WATANABE4, Kazuyuki KITA5, Atsushi SHINOHARA1 (1.Graduate School of Science, Osaka University, 2.Osaka University Radioisotope Research Center, 3.Atomosphere and Ocean Research Institute, University of Tokyo, 4.Fukushima University, 5.Ibaraki University)

Keywords:Atmospheric observation, Air dust, Radioactivity Measurement, Cs-137 concentration

A large amount of radioactive materials were released in the environment by the accident at the Fukushima Daiichi Nuclear Power Station. We have been collecting air-dust using high volume air sampler at Fukushima city (Fukushima Pref.), Marumori town (Miyagi Pref.) and Hitachi city (Ibaraki Pref.) since the accident. We identified the radioactivities of 134Cs and 137Cs in filters using HPGe detector. We will discuss time variations of radioactive cesium concentration.