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Effects of Coexistent Trace Elements and Microorganisms on Migration of Radioactive Isotopes from Soil to Hydrosphere

Research Project

Project/Area Number 24550176
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Environmental chemistry
Research InstitutionHiroshima University

Principal Investigator

NAKASHIMA Satoru  広島大学, 自然科学研究支援開発センター, 教授 (00192667)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Keywords環境放射能 / 微生物影響 / 福島土壌 / 移行 / 放射性セシウム / カリウム / 共存元素 / バイオマット / 電子顕微鏡 / 鉄
Outline of Final Research Achievements

The relation between environmental radioactivity concentration and microbial mat activity in the water samples of Higashi-Hiroshima Campus, Hiroshima University was investigated. EDX revealed that microbial mat contains iron, aluminum, silicon and phosphorus. Model experiment revealed that the potassium was adsorbed by living microorganism in the microbial mats, while it was not adsorbed by dead microbial mat. Iron was adsorbed by both living and dead microbial mats. The present results explained the increase in the total beta-radioactivity of water sample in summer and the decrease in winter.
Contaminated rice was observed in the rice from the paddy field in Fukushima City. We investigated four paddy fields (A, B, C and D) in Fukushima city. The fields are close to mountains. The radioactivity of rice in the husk from B was higher than those from A, C and D. The transfer rate of radioactive cesium from soil to rice was compared with the rate of potassium.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (23 results)

All 2015 2014 2013 2012

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 1 results) Presentation (17 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Environmental Radioactivity of Water Samples Collected in Higashi-Hiroshima Campus, Hiroshima University, Japan2015

    • Author(s)
      S. Nakashima, A. Sasai, K. Koga, H. Yasuhara, A. Matsushima, K. Inada
    • Journal Title

      Radiation Protection Dosimetry

      Volume: May Issue: 1-3 Pages: 1-4

    • DOI

      10.1093/rpd/ncv242

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] 環境放射能動態における微生物の影響に関する研究~各種元素が微生物に与える影響の検討~2014

    • Author(s)
      稲田晋宣,松嶋亮人,木庭亮二,寺元浩昭,中島 覚
    • Journal Title

      Proceedings of the 15th Workshop on Environmental Radioactivity

      Volume: 15 Pages: 58-63

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 水中、土中の放射性セシウムと稲の吸収 中間報告書2014

    • Author(s)
      松田尚樹,中島 覚
    • Journal Title

      日本放射線安全管理学会誌

      Volume: 13 Pages: 84-91

    • NAID

      130004941394

    • Related Report
      2014 Annual Research Report
  • [Journal Article] 東広島市の河川、池水、下水、の環境放射能とアルカリ金属、希土類元素の関係2013

    • Author(s)
      古賀和樹、松嶋亮人、稲田晋宣、中島 覚
    • Journal Title

      Proceedings of the Fourteen Workshop on Environmental Radioactivity

      Volume: 2013 Pages: 222-226

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 広島大学東広島キャンパス水中の環境放射能、金属元素とバイオマットの関係2012

    • Author(s)
      古賀和樹、河合智史、松嶋亮人、稲田晋宣、中島 覚
    • Journal Title

      Proceedings of the 13th Workshop on Environmental Radioactivity

      Volume: 2012 Pages: 138-143

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Concentration of Cesium-134 and Cesium-137 in Soil and Rice in Fukushima Prefecture2015

    • Author(s)
      NGUYEN Thanh Hai and Satoru Nakashima
    • Organizer
      第10回放射線モニタリングに係る国際ワークショップ
    • Place of Presentation
      千代田テクノル大洗
    • Year and Date
      2015-02-28 – 2015-03-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] One Consideration Concerning Migration Pathway of Radioactive Materials Caused by Tsushima Current and Soya Current2015

    • Author(s)
      Yasushi Nabae and Satoru Nakashima
    • Organizer
      The 4th International Symposium on Phoenix Leader Education Program for Renaissance from Radiation Disaster "LEADERSHIP and TRUST in RADIATION DISASTER"
    • Place of Presentation
      International Conference Center Hiroshima
    • Year and Date
      2015-02-14 – 2015-02-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Concentration of Cesium-134 and Cesium-137 in Soil and Rice in Fukushima Prefecture2015

    • Author(s)
      NGUYEN Thanh Hai and Satoru Nakashima
    • Organizer
      The 4th International Symposium on Phoenix Leader Education Program for Renaissance from Radiation Disaster "LEADERSHIP and TRUST in RADIATION DISASTER"
    • Place of Presentation
      International Conference Center Hiroshima
    • Year and Date
      2015-02-14 – 2015-02-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Measurement and Decontamination of Radioactive Cesium from Soil in Fukushima2015

    • Author(s)
      Masaya Tsujimoto, Sunao Miyashita, and Satoru Nakashima
    • Organizer
      The 4th International Symposium on Phoenix Leader Education Program for Renaissance from Radiation Disaster "LEADERSHIP and TRUST in RADIATION DISASTER"
    • Place of Presentation
      International Conference Center Hiroshima
    • Year and Date
      2015-02-14 – 2015-02-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] 汚染米発現に関する一考察2014

    • Author(s)
      中島 覚
    • Organizer
      日本放射線安全管理学会第13回学術大会
    • Place of Presentation
      徳島大学大塚講堂
    • Year and Date
      2014-12-03 – 2014-12-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 福島第一原子力発電所から石狩湾への放射性物質の移動経路に関する一考察2014

    • Author(s)
      難波江 靖、中島 覚
    • Organizer
      日本放射線安全管理学会第13回学術大会
    • Place of Presentation
      徳島大学大塚講堂
    • Year and Date
      2014-12-03 – 2014-12-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] アルカリ金属が環境中の微生物に与える影響2014

    • Author(s)
      稲田晋宣、松嶋亮人、木庭亮二、寺元浩昭、中島 覚
    • Organizer
      日本放射線安全管理学会第13回学術大会
    • Place of Presentation
      徳島大学大塚講堂
    • Year and Date
      2014-12-03 – 2014-12-05
    • Related Report
      2014 Annual Research Report
  • [Presentation] 溶媒抽出法を用いた汚染土壌からのセシウム除染技術の開発2014

    • Author(s)
      宮下 直、中島 覚
    • Organizer
      第3回環境放射能除染研究発表会
    • Place of Presentation
      郡山市民文化センター
    • Year and Date
      2014-07-03 – 2014-07-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Relationship between Metal Ion Concentration and Microbial Mat Activity in Higashi-Hiroshima Campus, Hiroshima University2014

    • Author(s)
      A. Sasai, K. Koga, H. Yasuhara, and S. Nakashima
    • Organizer
      The 3rd International Symposium of Phoenix Leader Education Program for Renaissance from Radiation Disaster
    • Place of Presentation
      Hiroshima
    • Related Report
      2013 Research-status Report
  • [Presentation] One Consideration Concerning Migration Pathway of Radioactive Materials from FDNPP to Ishikari Bay2014

    • Author(s)
      Y. Nabae and S. Nakashima
    • Organizer
      The 3rd International Symposium of Phoenix Leader Education Program for Renaissance from Radiation Disaster
    • Place of Presentation
      Hiroshima
    • Related Report
      2013 Research-status Report
  • [Presentation] 環境放射能動態における微生物の影響に関する研究~各種元素が微生物に与える影響の検討~2014

    • Author(s)
      稲田晋宣、松嶋亮人、木庭亮二、寺元浩昭、中島 覚
    • Organizer
      第15回「環境放射能」研究会
    • Place of Presentation
      つくば
    • Related Report
      2013 Research-status Report
  • [Presentation] 広島大学東広島キャンパスに形成された赤褐色バイオマットへの人工放射性核種の取り込み2013

    • Author(s)
      松嶋亮人、稲田晋宣、木庭亮二、寺元浩昭、中島 覚
    • Organizer
      日本放射線安全管理学会第12回学術大会
    • Place of Presentation
      札幌
    • Related Report
      2013 Research-status Report
  • [Presentation] 水中、土中の放射性セシウムと稲の吸収2013

    • Author(s)
      中島 覚、桧垣正吾、廣田昌大、矢永誠人、三好弘一、木下哲一、桝本和義、森一幸、西澤邦秀
    • Organizer
      日本放射線安全管理学会第12回学術大会
    • Place of Presentation
      札幌
    • Related Report
      2013 Research-status Report
  • [Presentation] Relation between Environmental Radioactivity and Chemical Circumstances in Higashi-Hiroshima Campus, Hiroshima University2013

    • Author(s)
      K. KOGA, S. KAWAI, A. MATSUSHIMA, K. INADA, and S. NAKASHIMA
    • Organizer
      フェニックスリーダー育成プログラム国際シンポジウム
    • Place of Presentation
      広島
    • Related Report
      2012 Research-status Report
  • [Presentation] Diffusion of Radioactive Cesium into the Soil of Fukushima Prefecture2013

    • Author(s)
      S. KIHARA, A. MATSUSHIMA, K. INADA, M. HIROTA, K. NISHIZAWA, and S. NAKASHIMA
    • Organizer
      フェニックスリーダー育成プログラム国際シンポジウム
    • Place of Presentation
      広島
    • Related Report
      2012 Research-status Report
  • [Presentation] 東広島市の河川、池水の環境放射能とアルカリ金属、希土類元素の関係2013

    • Author(s)
      古賀和樹、松嶋亮人、稲田晋宣、中島 覚
    • Organizer
      第14回環境放射能研究会
    • Place of Presentation
      つくば
    • Related Report
      2012 Research-status Report
  • [Presentation] 広島大学東広島キャンパスの環境放射能と化学的環境の関係2012

    • Author(s)
      古賀和樹、木原翔也、難波孝志、松嶋亮人、稲田晋宣、中島 覚
    • Organizer
      第56回放射化学討論会
    • Place of Presentation
      東京
    • Related Report
      2012 Research-status Report
  • [Book] 溶媒抽出法を用いた汚染土壌からのセシウム除染技術(in 放射性物質対策技術 ~除染、モニタリング、装置・システム開発~)2015

    • Author(s)
      宮下 直、中島 覚
    • Total Pages
      9
    • Publisher
      NTS
    • Related Report
      2014 Annual Research Report

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Published: 2013-05-31   Modified: 2019-07-29  

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