• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Radiosesium migration, effluence path to water system, and mechanizum of transfer to rice in Fukushima

Research Project

Project/Area Number 25660188
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Rural environmental engineering/Planning
Research InstitutionThe University of Tokyo

Principal Investigator

Sho Shiozawa  東京大学, 農学生命科学研究科, 教授 (80134154)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2015: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords放射性セシウム / ため池 / 土壌への固定 / 底質のセシウム濃度 / 移行係数 / 交換態セシウム / 土壌への弱い固定 / 土壌への強い固定 / 降雨浸透 / ガンマ線 / シンチレーションサーべーメータ
Outline of Final Research Achievements

In Fukushima there are Radiosecium (Cs) concentration hot spot, in some ponds, rivers in city, and Abukuma river. This research confirmed that the source of high concentration Cs from where Cs flowed out was not forest but city (asphaltic pavement and roof of buildings), by measuring sediment concentration(Fsed ;Bq/m2)in agricultural ponds and fallout concentration (Ffall ;Bq/m2)on the pond, and comparing the ratio Fsed /Ffall among three ponds of different land cover of those catchment. As the results Fsed /Ffall<1 for two ponds whose catchments are forest, indicating inflow Cs to the pond had been less than outflow Cs, however, Fsed /Ffall=4.8 for a pond whose catchments is mostly asphaltic pavement and building roof, indicating that large inflow of Cs (outflow from the catchment) had occurred.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (9 results)

All 2016 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 1 results) Presentation (6 results) (of which Invited: 3 results) Book (1 results)

  • [Journal Article] 土壌中のセシウム分布と動態2016

    • Author(s)
      塩沢 昌
    • Journal Title

      現代化学

      Volume: 540 Pages: 29-31

    • Related Report
      2015 Annual Research Report
  • [Journal Article] 放射性セシウムの土壌中の挙動と水系への流出2016

    • Author(s)
      塩沢 昌
    • Journal Title

      農業農村工学会誌

      Volume: 84-6

    • NAID

      130007968150

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] 放射性セシウムの添加による土壌への固定状態の経時変化2016

    • Author(s)
      塩沢 昌
    • Organizer
      東京大学農学生命科学研究科放射能汚染研究報告会
    • Place of Presentation
      東京大学弥生講堂
    • Year and Date
      2016-03-24
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 放射性セシウムの土壌中の挙動と水系への流出2015

    • Author(s)
      塩沢 昌
    • Organizer
      学術会議福島ワークショップ
    • Place of Presentation
      福島市コラッセフクシマ
    • Year and Date
      2015-08-22
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 放射性セシウムの土壌表面濃度の簡易な測定法と応用2014

    • Author(s)
      塩沢 昌、山野泰明、小野勇治
    • Organizer
      農業農村工学会
    • Place of Presentation
      新潟
    • Year and Date
      2014-08-26 – 2014-08-27
    • Related Report
      2014 Research-status Report
  • [Presentation] ホウレンソウへの移行係数からみ見た放射性セシウムの土壌への固定の進行2014

    • Author(s)
      光岡伸子、二瓶直登、塩沢 昌、吉田修一郎、西田和弘
    • Organizer
      農業農村工学会
    • Place of Presentation
      新潟
    • Year and Date
      2014-08-26 – 2014-08-27
    • Related Report
      2014 Research-status Report
  • [Presentation] 放射性セシウムはどこから水系に流出したのか - 福島県のため池における蓄積量調査から -2013

    • Author(s)
      塩沢 昌、財津卓弥、山野泰明
    • Organizer
      農業農村工学会講演会
    • Place of Presentation
      東京農業大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 放射性セシウムはどこから水系に流出したのか

    • Author(s)
      塩沢 昌
    • Organizer
      第7回放射能の農畜水産物等への影響についての研究報告会
    • Place of Presentation
      東京大学農学生命科学研究科
    • Related Report
      2013 Research-status Report
    • Invited
  • [Book] 放射能の土壌科学 - 森・田・畑から家庭菜園まで -2013

    • Author(s)
      塩沢昌 (分担)
    • Publisher
      日本学術協力財団
    • Related Report
      2013 Research-status Report

URL: 

Published: 2014-07-25   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi