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Study on material/seawater circulation in the Japan Sea using environmental radionuclides

Research Project

Project/Area Number 23710008
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Environmental dynamic analysis
Research InstitutionHiroshima University

Principal Investigator

SAKAGUCHI Aya  広島大学, 理学(系)研究科(研究院), 准教授 (00526254)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsウラン同位体 / 海水循環 / 人工放射性核種 / 日本海 / トレーサー / セシウム / 加速器質量分析 / U-236 / グローバルフォールアウト / 海洋循環トレーサー / Cs-137
Research Abstract

We analysed 236U concentration and distribution as well as its chemical state in samples obtained from the Sea of Japan and its surroundings to establish 236U as new oceanographic tracer. 236U concentration in all samples were determined with high precision, which made clear that much smaller samples are sufficient. Our results show that the main source of 236U in the Sea of Japan is direct inflow through Tsushima-strait and that 236U stays in dissolved form in the water column. The depth profile of 236U as well as the diffusion coefficient were found to be similar to the ones of 137Cs, which was widely used as an oceanographic tracer isotope in former research. This suggests that the long-lived anthropogenic radionuclide 236U has a huge potential to replace the short-lived 137Cs as oceanographic tracer. Furthermore, the distributions of 236U suggested a possibility of deep-water formation with the subduction of surface water.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (72 results)

All 2014 2013 2012 2011 Other

All Journal Article (27 results) (of which Peer Reviewed: 27 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (40 results) (of which Invited: 4 results) Book (3 results) Remarks (2 results)

  • [Journal Article] Relationship between particle size and radiocesium in fluvial suspended sediment related to the Fukushima Daiichi Nuclear Power Plant accident2014

    • Author(s)
      Tanaka, K ; Iwatani, H ; Sakaguchi, A ; Takahashi, Y ; Onda, Y
    • Journal Title

      Journal of Radioanalytical and Nuclear Chemistry

      Volume: 301 Issue: 2 Pages: 607-613

    • DOI

      10.1007/s10967-014-3159-1

    • Related Report
      2013 Final Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Isotopic compositions of transuranic nuclides released by the Fukushima Dai-ichi Nuclear Power Plant accident: with emphasis on Cm isotope2014

    • Author(s)
      M. Yamamoto, A. Sakaguchi, S. Ochiai, T. Imanaka
    • Journal Title

      J. Radioanal. Nucl. Chem

      Volume: in press Issue: 3 Pages: 5-10

    • DOI

      10.1007/s10967-014-3003-7

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] An EXAFS Study on the Effects of Natural Organic Matter and the Expandability of Clay Minerals on Cesium Adsorption and Mobility.2014

    • Author(s)
      Q. H. Fan, M. Tanaka, K. Tanaka, A. Sakaguchi, and Y. Takahashi
    • Journal Title

      Geochimica et Cosmochimica Acta

      Volume: 135 Pages: 49-65

    • DOI

      10.1016/j.gca.2014.02.049

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isotopic compositions of 236U and Pu isotopes in “Black Substances” collected from roadsides in Fukushima Prefecture: fallout from the Fukushima Dai-ichi Nuclear Power Plant accident.2014

    • Author(s)
      A. Sakaguchi, P. Steier, Y. Takahashi, and M. Yamamoto
    • Journal Title

      Environ. Sci. Technol.

      Volume: 48 Issue: 7 Pages: 3691-3697

    • DOI

      10.1021/es405294s

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isotopic Pu, Am and Cm, signatures in environmental samples contaminated by the Fukushima Di-ichi Nuclear Power Plant Accident2014

    • Author(s)
      M. Yamamoto, A. Sakaguchi, S. Ochiai, T. Takada, K. Hamataka, T. Murakami, and S. Nagao
    • Journal Title

      J. Environ. Radioactivity

      Volume: 132 Pages: 31-46

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Chemical processes for the extreme enrichment of tellurium into marine ferromanganese oxides2014

    • Author(s)
      Kashiwabara, T ; Oishi, Y ; Sakaguchi, A ; Sugiyama, T ; Usui, A ; Takahashi, Y
    • Journal Title

      Geochimica Et Cosmochimica Acta

      Volume: 131 Pages: 150-163

    • DOI

      10.1016/j.gca.2014.01.020

    • NAID

      130004593560

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Isotopic Pu, Am and Cm signatures in environmental samples contaminated by the Fukushima Di-ichi Nuclear Power Plant Accident2014

    • Author(s)
      M. Yamamoto, A. Sakaguchi, S. Ochiai, T. Takada, K. Hamataka, T. Murakami, S. Nagao
    • Journal Title

      J. Environ. Radioactivity

      Volume: 132 Pages: 31-46

    • DOI

      10.1016/j.jenvrad.2014.01.013

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 環境中の人工ウラン同位体U-236 を利用した研究-海洋循環トレーサーとしての確立を目指して-2013

    • Author(s)
      坂口綾,門倉彰伸,シュタイアー ピーター,山本政儀,坂田昂平,富田純平,高橋嘉夫
    • Journal Title

      分析化学

      Volume: 62 Pages: 1001-1012

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of spatial distribution of radiocesium in a paddy field as a potential sink.2013

    • Author(s)
      K. Tanaka, H. Iwatani, Y. Takahashi, A. Sakaguchi, K. Yoshimura, and Y. Onda
    • Journal Title

      PLos One

      Volume: 8 Issue: 11 Pages: e80794-e80794

    • DOI

      10.1371/journal.pone.0080794

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Heterogeneous distribution of radiocesium in aerosols, soil and particulate matters emitted by the Fukushima Daiichi Nuclear Power Plant accident: retention of micro-scale heterogeneity during the migration of radiocesium from the air into ground and river systems2013

    • Author(s)
      K. Tanaka
    • Journal Title

      Journal of Radioanalytical Nuclear and chemistry

      Volume: 295 Issue: 3 Pages: 1927-1937

    • DOI

      10.1007/s10967-012-2160-9

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Local distribution of radioactivity in tree leaves contaminated by fallout of the radionuclides emitted from the Fukushima Daiichi Nuclear Power Plant2013

    • Author(s)
      K. Tanaka
    • Journal Title

      Journal of Radioanalytical Nuclear and chemistry

      Volume: 295 Issue: 3 Pages: 2007-2014

    • DOI

      10.1007/s10967-012-2192-1

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Heterogeneous distribution of radiocesium in aerosols, soil and particulate matters emitted by the Fukushima Daiichi Nuclear Power Plant accident : retention of micro-scale heterogeneity during the migration of radiocesium from the air into ground and river systems2013

    • Author(s)
      K. Tanaka, A. Sakaguchi, Y. Kanai, H. Tsuruta, A. Shinohara Y. Takahashi
    • Journal Title

      Journal of Radioanalytical Nuclear and chemistry

      Volume: 295 Pages: 1927-1937

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Soil particle size measurements for the calculation of the spread of dusts blown up by the explosion of the Hiroshima atomic bomb -For radiation dose estimation from neutron activated dusts of soils used in traditional Japanese houses and those of the ground surface -2013

    • Author(s)
      A. Sakaguchi, M. Hoshi, M. Aoyama, H. Kato, Y. Onda
    • Journal Title

      Revisit The Hiroshima A-bomb with a Database-Last scientific view on local fallout and Black Rain

      Volume: (ISBN 978-4-9905935-1-3) Pages: 15-24

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Local distribution of radioactivity in tree leaves contaminated by fallout of the radionuclides emitted from the Fukushima Daiichi Nuclear Power Plant2013

    • Author(s)
      K. Tanaka, H. Iwatani, A. Sakaguchi and Y. Takahashi
    • Journal Title

      Journal of Radioanalytical Nuclear and chemistry

      Volume: 295 Pages: 2007-2014

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Study on Anthropogenic Uranium Isotope U-236 in the Environment — Application for Oceanic Circulation Tracer —2013

    • Author(s)
      坂口綾,門倉彰伸,シュタイアーピーター,山本政儀,坂田昂平,富田純平,高橋嘉夫
    • Journal Title

      BUNSEKI KAGAKU

      Volume: 62 Issue: 11 Pages: 1001-1012

    • DOI

      10.2116/bunsekikagaku.62.1001

    • NAID

      10031196848

    • ISSN
      0525-1931
    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Uranium-236 as a new oceanic tracer: a first depth profile in the Japan Sea and comparison with caesium-1372013

    • Author(s)
      A. Sakaguchi
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 333 Pages: 165-170

    • DOI

      10.1016/j.epsl.2012.04.004

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Uranium-236 as a new oceanic tracer : a first depth profile in the Japan Sea and comparison with caesium-1372012

    • Author(s)
      A. Sakaguchi, A. Kadokura, P. Steier, Y. Takahashi, K. Shizuma, M. Hoshi, T. Nakakuki, M. Yamamoto
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 333-334 Pages: 165-170

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Isotopic determination of U, Pu and Cs in environmental waters following the Fukushima Daiichi Nuclear Power Plant accident2012

    • Author(s)
      A. Sakaguchi, A. Kadokura, P. Steier, K. Tanaka, Y. Takahashi, H. Chiga, A. Matsushima, S. Nakashima and Y. Onda
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 355-360

    • NAID

      10031060836

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] An early survey of the radioactive contamination of soil due to the Fukushima Dai-ichi Nuclear Power Plant accident, with emphasis on plutonium analysis2012

    • Author(s)
      M. Yamamoto, T. Takada, S. Nagao, T. Koike, K. Shimada, M. Hoshi, K. Zhumadilov, T. Shima, M. Fukuoka, T. Imanaka, A. Sakaguchi, S. Kimura
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 341-353

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vertical Profiles of Iodine-131 and Cesium-137 in Soils in Fukushima Prefecture related to the Fukushima Daiichi Nuclear Power Station Accident2012

    • Author(s)
      K. Tanaka, Y. Takahashi, A. Sakaguchi, M. Umeo, S. Hayakawa, H. Tanida, T. Saito, Y. Kanai
    • Journal Title

      Geochemical Journal

      Volume: 43 Pages: 73-76

    • NAID

      10030363817

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Investigation of cesium adsorption on soil and sediment samples from Fukushima Prefecture by sequential extraction and EXAFS technique2012

    • Author(s)
      H. Qin, Y. Yokoyama, Q. Fan, H. Iwatani, K. Tanaka, A. Sakaguchi, Y. Kanai, J. Zhu, Y. Onda, and Y. Takahashi
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 297-302

    • NAID

      10031060694

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vertical Profiles of Iodine-131 and Cesium-137 in Soils in Fukushima Prefecture related to the Fukushima Daiichi Nuclear Power Station Accident,2012

    • Author(s)
      K. Tanaka, Y. Takahashi, A. Sakaguchi, M. Umeo, S. Hayakawa, H. Tanida, T. Saito, Y. Kanai,
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 73-76

    • NAID

      10030363817

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Disastrous Flood Events Found in Lacustrine Sediments from Lake Biwa (Featured Articles : Mega-Earthquake and Geomorphic Hazards)2012

    • Author(s)
      ITONO Taeko, KASHIWAYA Kenji, SAKAGUCHI Aya
    • Journal Title

      地形

      Volume: 33 Pages: 453-468

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Vertical Profiles of Iodine-131 and Cesium-137 in Soils in Fukushima Prefecture related to the Fukushima Daiichi Nuclear Power Station Accident2012

    • Author(s)
      Tanaka, K., Takahashi, Y., Sakaguchi, A., Umeo, M., Hayakawa, S., Tanida, H., Saito, T. ,Kanai, Y
    • Journal Title

      Geochemical Journal

      Volume: 46 Pages: 73-76

    • NAID

      10030363817

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Preliminary results on 137Cs in soil core samples collected from the under-floors of houses built within 1-4 years after the Hiroshima Atomic Bomb2011

    • Author(s)
      A. Sakaguchi, H. Chiga, K. Shizuma, M. Hoshi, M. Yamamoto
    • Journal Title

      Revisit The Hiroshima A-bomb with a Database-Last scientific view on local fallout and Black Rain

      Volume: (ISBN 978-4-9905935-0-6) Pages: 93-96

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Size-dependent distribution of radiocesium in riverbed sediments and its relevance to the migration of radiocesium in river systems after the Fukushima Daiichi Nuclear Power Plant accident

    • Author(s)
      K. Tanaka, H. Iwatani, A. Sakaguchi, Y. Takahashi, and Q. Fan
    • Journal Title

      J. Environ. Radioactivity

      Volume: (In press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Size distribution studies of 137Cs in river water in the Abukuma riverine system following the Fukushima Dai-ichi Nuclear Power Plant accident

    • Author(s)
      A. Sakaguchi, K. Tanaka, H. Iwatani, H. Chiga, Q. Fan, Y. Onda, and Y. Takahashi
    • Journal Title

      J. Environ. Radioactivity

      Volume: (In press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Presentation] 環境中ウラン、超ウラン元素同位体測定に関する最近の動向2014

    • Author(s)
      坂口綾 ,高橋嘉夫 , Peter Steier, 山本政儀
    • Organizer
      アクチニド元素の化学と工学専門研究会,アクチニドおよびFP核種の分析化学研究
    • Place of Presentation
      京都大学原子炉,熊取
    • Year and Date
      2014-03-12
    • Related Report
      2013 Final Research Report
  • [Presentation] 加速器質量分析による環境中のウラン同位体U-236測定とその応用2014

    • Author(s)
      坂口綾 , Peter Steier,高橋嘉夫
    • Organizer
      広島地区分析技術講演会
    • Place of Presentation
      広島大学,東広島
    • Year and Date
      2014-03-04
    • Related Report
      2013 Final Research Report
  • [Presentation] 身の回りの見えないモノからみる&見えないモノをみる~海と陸のサイエンス~2014

    • Author(s)
      坂口綾
    • Organizer
      2013年日本放射光学会市民公開講座
    • Place of Presentation
      国際会議場 ,広島
    • Year and Date
      2014-01-12
    • Related Report
      2013 Final Research Report
  • [Presentation] Reconstruction of anthropogenic 236U input to the Japan Sea2014

    • Author(s)
      A. Sakaguchi, T. Nomura, P. Steier, T. Watanabe, K. Sasaki, Y. Takahashi, H. Yamano
    • Organizer
      International Joint workshop on Coral reef environmental earth sciences
    • Place of Presentation
      Hokkaido University, Sapporo.
    • Related Report
      2013 Final Research Report
  • [Presentation] Reconstruction of anthropogenic 236U input to the Japan Sea2014

    • Author(s)
      A. Sakaguchi, T. Nomura, P. Steier, T. Watanabe, K. Sasaki, Y. Takahashi, H. Yamano
    • Organizer
      International Joint workshop on Coral reef environmental earth sciences
    • Place of Presentation
      Hokkaido
    • Related Report
      2013 Annual Research Report
  • [Presentation] 加速器質量分析による環境中のウラン同位体U-236測定とその応用2014

    • Author(s)
      坂口綾、Peter Steier、高橋嘉夫
    • Organizer
      広島地区分析技術講演会
    • Place of Presentation
      広島
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 環境中ウラン、超ウラン元素同位体測定に関する最近の動向2014

    • Author(s)
      坂口綾、高橋嘉夫、Peter Steier、山本政儀
    • Organizer
      アクチニド元素の化学と工学専門研究会
    • Place of Presentation
      京都
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 放射能と放射線2013

    • Author(s)
      坂口綾
    • Organizer
      2013年日本地球化学会若手シンポジウム
    • Place of Presentation
      草加
    • Year and Date
      2013-09-13
    • Related Report
      2013 Final Research Report
  • [Presentation] サンゴ骨格に記録された赤道太平洋表層水中の人工放射性核種236U変動2013

    • Author(s)
      坂口綾 ,江藤飛鳥 , Peter Steier,山崎敦子 ,渡邊剛 ,佐々木圭一 ,高橋嘉夫 and 山野博哉
    • Organizer
      日本地球化学会年会
    • Place of Presentation
      筑波大学,つくば
    • Related Report
      2013 Final Research Report
  • [Presentation] Depth distributions of uranium-236 and cesium-137 in the Japan Sea; toward the potential use as a new oceanic circulation tracer2013

    • Author(s)
      A. Sakaguchi, A. Kadokura, P. Steier, Y. Takahashi, K. Shizuma, T. Nakakuki, M. Yamamoto
    • Organizer
      APSORC'13 -5th Asia-Pacific Symposium on Radiochemistry
    • Place of Presentation
      Kanazawa Bunka Hall, Kanazawa, Japan
    • Related Report
      2013 Final Research Report
  • [Presentation] サンゴ骨格に記録された赤道太平洋表層水中の人工放射性核種236U変動2013

    • Author(s)
      坂口綾・江藤飛鳥・ Peter Steier・山崎敦子・渡邊剛・佐々木圭一・高橋嘉夫・山野博哉
    • Organizer
      JAMS-15
    • Place of Presentation
      名古屋
    • Related Report
      2013 Final Research Report
  • [Presentation] サンゴ骨格に記録された赤道太平洋表層水中の人工放射性核種236U変動2013

    • Author(s)
      坂口綾、江藤飛鳥、Peter Steier、山崎敦子、渡邊剛、佐々木圭一、高橋嘉夫、山野博哉
    • Organizer
      地球化学会年会2013
    • Place of Presentation
      筑波
    • Related Report
      2013 Annual Research Report
  • [Presentation] 放射能と放射線-環境汚染・被ばく問題から地球科学的利用まで2013

    • Author(s)
      坂口綾
    • Organizer
      2013年日本地球化学会若手シンポジウム
    • Place of Presentation
      埼玉
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Depth distributions of uranium-236 and cesium-137 in the Japan/East Sea; toward the potential use as a new oceanic circulation tracer2012

    • Author(s)
      A. Sakaguchi, A. Kadokura, P. Steier, Y. Takahashi, K. Shizuma, M. Yamamoto
    • Organizer
      EGU(Europe Geoscience Union) general assembly 2012
    • Place of Presentation
      Vienna, Austria
    • Related Report
      2013 Final Research Report
  • [Presentation] Preliminary Results of Uranium-236, Plutonium-239, 240 and Cesium-137 Measurements in Samples Related With 'Black Rain' after the Hiroshima Atomic Bomb2012

    • Author(s)
      A. Sakaguchi, H. Chiga, P. Steier, K. Shizuma, M. Hoshi, Y. Takahashi, M. Yamamoto
    • Organizer
      Health Physics Society 58th annual meeting
    • Place of Presentation
      Sacramento, USA
    • Related Report
      2013 Final Research Report
  • [Presentation] サンゴ中のウランに関する研究‐同位体組成分析および蛍光分光XAFS法を用いた化学形態分析2012

    • Author(s)
      森千晴 ,坂口綾 ,佐々木圭一 ,宇留賀朋哉 ,谷田肇 ,寺田靖子 ,高橋嘉夫
    • Organizer
      日本地球化学会 2012年会
    • Place of Presentation
      福岡
    • Related Report
      2013 Final Research Report
  • [Presentation] Preliminary results on soil core samples collected from the under-floors of houses built within 1-4 years after the Hiroshima Atomic Bomb2012

    • Author(s)
      Sakaguchi, A., Chiga, H., Steier, P., Shizuma, K., Hoshi, M., Takahashi, Y., Yamamoto, M.
    • Organizer
      17th Hiroshima International Symposium, Lessons from unhappy events in the history of nuclear power development
    • Place of Presentation
      Hiroshima
    • Related Report
      2013 Final Research Report
  • [Presentation] What is the origin of 137Cs detected in soil samples under houses built 1-3 years after the Hiroshima atomic bomb ?2012

    • Author(s)
      Yamamoto M, Sakaguch A, Hoshi M, Imanaka T, Miyamoto Y
    • Organizer
      17th Hiroshima International Symposium, Lessons from unhappy events in the history of nuclear power development
    • Place of Presentation
      Hiroshima
    • Related Report
      2013 Final Research Report
  • [Presentation] Development of uranium-236 as a new oceanic circulation tracer : a first depth profile in the Japan/East Sea compared with cesium-1372012

    • Author(s)
      坂口綾、門倉彰伸、 Peter Steier、静間清、高橋嘉夫、山本政儀
    • Organizer
      白鳳丸クリーン観測による微量元素・同位体研究の現状と展望 GEOTRACES計画
    • Place of Presentation
      東京大学
    • Related Report
      2013 Final Research Report
  • [Presentation] Preliminary Results of Uranium-236, Plutonium-239, 240 and Cesium-137 Measurements in Samples Relat¬ed With ‘Black Rain’ after the Hiroshima Atomic Bomb2012

    • Author(s)
      A. Sakaguchi, H. Chiga, P. Steier, K. Shizuma, M. Hoshi, Y. Takahashi, M. Yamamoto
    • Organizer
      Health Physics 2013
    • Place of Presentation
      サクラメント アメリカ
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] Enrichment mechanisms of tellurium in ferromanganese crusts2012

    • Author(s)
      T. Sugiyama, A. Sakaguchi, A. Usui, Y. Takahashi
    • Organizer
      European Geosciences Union General Assembly 2013
    • Place of Presentation
      ウィーン オーストリア
    • Related Report
      2012 Research-status Report
  • [Presentation] Depth distributions of uranium-236 and cesium-137 in the Japan/East Sea; toward the potential use as a new oceanic circulation tracer2012

    • Author(s)
      A Sakaguchi, A. Kadokura, P. Steier, Y. Takahashi, K. Shizuma, M. Yamamoto
    • Organizer
      European Geosciences Union General Assembly 2013
    • Place of Presentation
      ウィーン オーストリア
    • Related Report
      2012 Research-status Report
  • [Presentation] Enrichment mechanisms of tellurium in ferromanganese crusts2012

    • Author(s)
      T. Sugiyama, A. Sakaguchi, T. Kashiwabara, A. Usui, Y. Takahashi
    • Organizer
      日本地球惑星科学連合 2013年度連合大会
    • Place of Presentation
      幕張
    • Related Report
      2012 Research-status Report
  • [Presentation] サンゴ中のウランに関する研究‐同位体組成分析および蛍光分光XAFS法を用いた化学形態分析‐2012

    • Author(s)
      森千晴, 坂口綾, 佐々木圭一, 宇留賀朋哉, 谷田肇, 寺田靖子,高橋嘉夫
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 流星海山における鉄マンガンクラストの成長速度および元素組成2012

    • Author(s)
      井上美南・坂口綾・高橋嘉夫・松崎浩之・臼井朗
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 鉄マンガン酸化物へのテルルの“異常濃集”の化学的要因2012

    • Author(s)
      大石泰子・柏原輝彦・杉山敏基・坂口綾・高橋嘉夫
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 流星海山におけるマンガンクラストの古海洋環境記録としての可能性2012

    • Author(s)
      西圭介・臼井朗・佐藤久晃・坂口綾・井上美南・松崎浩之
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 福島第一原子力発電所から放出された放射性セシウムの河川系砕屑物における挙動2012

    • Author(s)
      岩谷北斗・高橋嘉夫・坂口 綾・田中万也・Qiaohui Fan・恩田裕一・加藤弘亮
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 福島第一原子力発電所から放出された放射性セシウムの樹葉による取り込み及び分布状況2012

    • Author(s)
      田中万也・岩谷北斗・坂口綾高橋嘉夫・恩田裕一
    • Organizer
      日本地球化学会年会 2012
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 福島第一原発事故由来Cs‐137の環境中における挙動2012

    • Author(s)
      値賀晴香,坂口綾,岩谷北斗,田中万也,高橋嘉夫
    • Organizer
      日本放射化学会年会2012
    • Place of Presentation
      東京工業大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 大気中の鉛同位体比および化学種の精密分析2012

    • Author(s)
      坂田昂平,坂口 綾,谷水雅治,高橋嘉夫,高久雄一
    • Organizer
      環境科学討論会
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Development of uranium-236 as a new oceanic circulation tracer:a first depth profile in the Japan/East Sea compared with cesium-1372012

    • Author(s)
      坂口綾、門倉彰伸、Peter Steier、静間清、高橋嘉夫、山本政儀
    • Organizer
      白鳳丸クリーン観測による微量元素・同位体研究の現状と展望(GEOTRACES計画)
    • Place of Presentation
      千葉(東京大学)
    • Related Report
      2011 Research-status Report
  • [Presentation] 放射性同位体を利用した地球科学2011

    • Author(s)
      坂口綾
    • Organizer
      2011年日本地球化学会年会ショートコース
    • Place of Presentation
      北海道大学
    • Year and Date
      2011-09-13
    • Related Report
      2013 Final Research Report
  • [Presentation] Radiological situation in Fukushima -Result of radio Cs mapping in Fukushima pref.-2011

    • Author(s)
      A. Sakaguchi
    • Organizer
      IAEA 8th ALMERA Coordination Meeting
    • Place of Presentation
      Austria
    • Related Report
      2013 Final Research Report
  • [Presentation] Study on "Black-rain" after the Hiroshima atomic bomb-Reconstruction of close-in fallout deposition-2011

    • Author(s)
      Chiga, H., Sakaguchi, A., Steier, P., Shizuma, K. Hoshi, M., Takahashi, Y., Yamamoto, M
    • Organizer
      4th East Asian Symposium on Accelerator Mass Spectrometry
    • Place of Presentation
      Tokyo
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] Distribution of 236U in the Japan Sea2011

    • Author(s)
      Kadokura, A., Sakaguchi, A., Steier, P., Shizuma, K., Takahashi, Y.
    • Organizer
      4th East Asian Symposium on Accelerator Mass Spectrometry
    • Place of Presentation
      Tokyo
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] 日本海におけるU-236の分布2011

    • Author(s)
      坂口綾、門倉彰伸、 Peter Steier、静間清、高橋嘉夫、山本政儀
    • Organizer
      2011年日本放射化学会年会
    • Place of Presentation
      信州大学
    • Related Report
      2013 Final Research Report
  • [Presentation] 日本海におけるU-236の分布2011

    • Author(s)
      坂口綾,、門倉彰伸、Peter Steier、静間清、高橋嘉夫、山本政儀
    • Organizer
      日本放射化学会
    • Place of Presentation
      長野
    • Related Report
      2011 Research-status Report
  • [Presentation] 日本海における236Uの海洋トレーサー利用の試み2011

    • Author(s)
      門倉彰伸、 坂口綾、 Piter Sitier、 静間清、 高橋嘉夫
    • Organizer
      日本海洋学会
    • Place of Presentation
      福岡
    • Related Report
      2011 Research-status Report
  • [Presentation] Radiological situation in Fukushima -Result of radio Cs mapping in Fukushima pref.-2011

    • Author(s)
      A. Sakaguchi
    • Organizer
      IAEA 8th ALMERA Coordination Meeting(招待講演)
    • Place of Presentation
      Vienna, Austria
    • Related Report
      2011 Research-status Report
  • [Book] 地球と宇宙の化学事典, 担当部分:環境放射能2012

    • Author(s)
      分担執筆
    • Total Pages
      479
    • Publisher
      朝倉書店
    • Related Report
      2013 Final Research Report
  • [Book] 地球と宇宙の化学事典2012

    • Author(s)
      坂口 綾 (分担執筆)
    • Total Pages
      479
    • Publisher
      朝倉書店
    • Related Report
      2012 Research-status Report
  • [Book] The Hiroshima A-bomb with a Database-Last scientific view on local fallout and Black Rain2011

    • Author(s)
      A. Sakaguchi, H. Chiga, K. Shizuma, M. Hoshi, M. Yamamoto (Editors: M. Aoyama, Y. Oochi)
    • Total Pages
      185
    • Publisher
      Hiroshima city
    • Related Report
      2011 Research-status Report
  • [Remarks]

    • URL

      http://home.hiroshima-u.ac.jp/environ/

    • Related Report
      2013 Final Research Report
  • [Remarks]

    • URL

      http://www.gender.go.jp/c-challenge/senpai/rigaku/etc/001.html

    • Related Report
      2013 Final Research Report

URL: 

Published: 2011-08-05   Modified: 2019-07-29  

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