Dynamics of radiomaterials driven by rainwater

• Project/Area Number: 25870158
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Risk sciences of radiation and chemicals; Environmental dynamic analysis
• Research Institution: The University of Tokyo
• Principal Investigator: SHOZUGAWA Katsumi 東京大学, 総合文化研究科, 助教 (00507923)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 放射性セシウム / 人工河川 / 公立学校 / 堆積物 / 経年変化

Outline of Final Research Achievements

We investigated that the mobility of radiocesium which released from the Fukushima Dai-ichi nuclear plant, TEPCO. After establishing the methods, we clarified the dynamics of radiocesium around Fukushima plant, and at the yard of public school in Tokyo. In addition, we reported the prediction of its mobility in the Japanese foodstuffs by compared with existing dataset and our results.

Research Products

• [Journal Article] Effective and ecological half-lives of 90Sr and 137Cs observed in wheat and rice in Japan (2016)
  • Author(s): S. Merz, K. Shozugawa, G. Steinhauser
  • Journal Title: Journal of Radioanalytical and Nuclear Chemistry Volume: 307(3) Issue: 3 Pages: 1807-1810
  • DOI: 10.1007/s10967-015-4352-6
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] High-sensitivity determination of radioactive cesium in Japanese foodstuffs: 3 years after the Fukushima accident (2016)
  • Author(s): K. Shozugawa, T. Saito, M. Hori, M. Matsuo
  • Journal Title: Journal of Radioanalytical and Nuclear Chemistry Volume: 307(3) Issue: 3 Pages: 2117-2122
  • DOI: 10.1007/s10967-015-4407-8
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Post-accident sporadic releases of airborne radionuclides from the Fukushima Daiichi nuclear power plant site (2015)
  • Author(s): G. Steinhauser, T. Niisoe, K. H Harada, K. Shozugawa, S. Schneider, H. A. Synal, C. Walther, M. Christl, K. Nanba, H. Ishikawa, A. Koizumi
  • Journal Title: Environmental Science and Technology Volume: 49(24) Issue: 24 Pages: 14028-14035
  • DOI: 10.1021/acs.est.5b03155
  • NAID: 120005753865
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Fukushima-derived radionuclides in sediments of the Japanese Pacific Ocean coast and various Japanese water samples (seawater, tap water, and coolant water of Fukushima Daiichi reactor unit 5 (2015)
  • Author(s): K. Shozugawa, B. Riebe, C. Walther, A. Brandl, G. Steinhauser
  • Journal Title: Journal of Radioanalytical and Nuclear Chemistry Volume: 307(3) Issue: 3 Pages: 1787-1793
  • DOI: 10.1007/s10967-015-4386-9
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Changes in the coastal environment in Kamaishi Bay after the Great East Japan Earthquake (2015)
  • Author(s): 山本光夫，加藤孝義，多部田茂，北澤大輔，藤野正俊，小豆川勝見，松尾基之，田中潔，道田豊
  • Journal Title: NIPPON SUISAN GAKKAISHI Volume: 81 Issue: 2 Pages: 243-255
  • DOI: 10.2331/suisan.81.243
  • NAID: 130004780819
  • ISSN: 0021-5392, 1349-998X
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Detection of Fuel Release in a Nuclear Accident: A Method for Preconcentration and Isolation of Reactor-Borne 239Np Using Ion-Specific Extraction Chromatography (2015)
  • Author(s): B. Rosenberg, K. Shozugawa, G. Steinhauser
  • Journal Title: Analytical chemistry Volume: 87(17) Issue: 17 Pages: 8651-8656
  • DOI: 10.1021/acs.analchem.5b02265
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Analysis of Japanese Radionuclide Monitoring Data of Food Before and After the Fukushima Nuclear Accident (2015)
  • Author(s): S. Merz, K. Shozugawa, G. Steinhauser
  • Journal Title: Environmental Science & Technology Volume: 49(5) Issue: 5 Pages: 2875-2885
  • DOI: 10.1021/es5057648
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Plutonium release from Fukushima Daiichi fosters the need for more detailed investigations (2013)
  • Author(s): S. Schneider, C. Walther, S. Bister, V.Schauer, M. Christl, H.A. Synal, K. Shozugawa, G. Steinhauser
  • Journal Title: Scientific Reports Volume: 3 Issue: 1 Pages: 2988-2988
  • DOI: 10.1038/srep02988
  • Peer Reviewed
• [Journal Article] A Change in the Concentrations of Radioactive Cesium in Tokyo-bay’s Sediments Released by the Fukushima Dai-ichi Nuclear Power Station Accident (2013)
  • Author(s): 添盛晃久・小豆川勝見・野川憲夫・桧垣正吾・松尾基之
  • Journal Title: BUNSEKI KAGAKU Volume: 62 Issue: 12 Pages: 1079-1086
  • DOI: 10.2116/bunsekikagaku.62.1079
  • NAID: 130003382341
  • ISSN: 0525-1931
  • Peer Reviewed
• [Presentation] 放射性物質はどこへ行ったのか？-東日本大震災による原発事故のその後- 1.放射性物質とは (2015)
  • Author(s): 小豆川勝見
  • Organizer: 第24回市民セミナー(日本水環境学会)
  • Place of Presentation: 地球環境カレッジホール(東京都・世田谷区)
  • Year and Date: 2015-08-07
  • Invited
• [Presentation] 可視化された放射性セシウムの易動性 (2015)
  • Author(s): 小豆川勝見, 堀まゆみ, 松尾基之
  • Organizer: 第24回環境化学討論会(日本環境化学会)
  • Place of Presentation: 札幌コンベンションセンター(北海道・札幌市)
  • Year and Date: 2015-06-24
• [Presentation] High Sensitive Analysis of Radioactive Cesium in Japanese Foodstuffs: Three Years after the Fukushima Accident (2015)
  • Author(s): K. Shozugawa, T. Saito, M. Hori, M. Matsuo
  • Organizer: Tenth International Conference on Methods and Applications of Radioanalytical Chemistry
  • Place of Presentation: Hawai(アメリカ合衆国)
  • Year and Date: 2015-04-12
  • Int'l Joint Research
• [Presentation] ガンマ線測定による地表面上に降下した放射性物質の動態研究 (2014)
  • Author(s): 渡邊利奈, 小豆川勝見, 松尾基之
  • Organizer: 日本地球化学会第61回年会
  • Place of Presentation: 富山大学五福キャンパス(富山県、富山市)
  • Year and Date: 2014-09-16 – 2014-09-18
• [Book] みんなの放射線測定入門 (2014)
  • Author(s): 小豆川勝見
  • Total Pages: 126
  • Publisher: 岩波書店