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Important role of the storm runoff Fe(II) flux in the supply of the dissolved iron in coastal seawater

Research Project

Project/Area Number 24651012
Research Category

Grant-in-Aid for Challenging Exploratory Research

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

Principal Investigator

YOSHIMURA Kazuhisa  九州大学, 理学(系)研究科(研究院), 教授 (80112291)

Co-Investigator(Kenkyū-buntansha) MATSUOKA Shiro  新潟大学, 理学部, 教授 (10219404)
Research Collaborator SATODA Makoto  
AIMOTO Michihiro  
KATO Toshiaki  
TENNICHI Yoshika  
SAREN Qiqige  
KAI Satsuki  
BANNO Yu  
MATSUMOTO Megumi  
UEHARA Wataru  
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords磯焼け / 河川水 / 溶存鉄 / スペシエーション分析 / オンサイト分析 / 固相分光法 / 洪水流出 / Fe(II)試料保存法 / 採水法 / Fe(II)保存法 / 洪水時Fe(II)フラックス / 試料採取法
Outline of Final Research Achievements

One of the causes of Isoyake, sea desert, around the Japan coast is attributed to the decline in the supply of the dissolved iron from river. Fe(III) complexes of humic substances in the river water should be coagulated when the river water is mixed with seawater. Our hypothesis is that Fe(II) is mainly supplied to the sea during storm runoff and forms dissolved Fe(III)-organic complexes in the presence of O2. To prove this hypothesis, on-site analysis method was established using solid-phase spectrophotometry to measure the low concentration of Fe(II). The sample collection method was also established by dissolving CO2 in sample solution to decrease pH and the dissolved O2 concentration and then by keeping pH at 2 within 1 hr after the sample collection. The bottom water of high Fe(II) concentration in the river was present in the local reduction environment under anoxic conditions. It was found that the Fe(II) flux at flood runoff was one hundred times more than that at base flow.

Report

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

    (47 results)

All 2015 2014 2013 2012 Other

All Journal Article (8 results) (of which Peer Reviewed: 7 results,  Open Access: 2 results) Presentation (36 results) (of which Invited: 10 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Voltammetric and 11B NMR study of the boric acid-salicylaldehyde-H-acid ternary system and its application to the voltammetric determination of boron2015

    • Author(s)
      Mari Kajiwara, Yoshio N. Ito, Yoshinobu Miyazaki, Takao Fujimori, Ko Takehara, Kazuhisa Yoshimura
    • Journal Title

      Phys. Chem. Chem. Phys.

      Volume: 17 Issue: 6 Pages: 4578-4588

    • DOI

      10.1039/c4cp05437g

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Kinetic flow-injection analysis of boron using 5-fluorosalicylaldehyde and H-acid2014

    • Author(s)
      Sarenqiqige, T. Kodani, M. Kajiwara, K. Takehara and K. Yoshimura
    • Journal Title

      Analytical Sciences

      Volume: 30 Pages: 885-889

    • NAID

      130004687414

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of trace iron in the boiler water used in power generation plants by solid-phase spectrophotometry2014

    • Author(s)
      Sarenqiqige, A. Maeda and K. Yoshimura
    • Journal Title

      Analytical Sciences

      Volume: 30 Pages: 1013-1017

    • NAID

      130004694050

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Speciation of dissolved chromium and the mechanisms controlling its concentration in natural water2014

    • Author(s)
      S. Saputro, K. Yoshimura, S. Matsuoka, K. Takehara, Narsito, J. Aizawa, and Y. Tennichi
    • Journal Title

      Chemical Geology

      Volume: 364 Pages: 33-41

    • DOI

      10.1016/j.chemgeo.2013.11.024

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Solid-phase spectrophotometer for on-site analysis of trace elements in natural water2013

    • Author(s)
      Sarenqiqige, S. Saputro, S. Kai, M. Satoda, S. Matsuoka and K. Yoshimura
    • Journal Title

      Analytical Sciences

      Volume: 29 Pages: 677-680

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Speciation analysis of ultratrace chromium in water by on-line reaction/concentration/separation using a cation-exchange column2013

    • Author(s)
      Sarenqiqige, M. Ashitomi and K. Yoshimura
    • Journal Title

      Analytical Sciences

      Volume: 29 Pages: 823-829

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 固相分光法による天然水中の溶存微量成分のスペシエーション分析-クロムと鉄の動態解明への展開2012

    • Author(s)
      吉村和久
    • Journal Title

      海洋化学研究

      Volume: 25 Pages: 15-23

    • NAID

      40019336947

    • Related Report
      2012 Research-status Report
  • [Journal Article] Regulation of the dissolved phosphate concentration of a mountainous stream, Kitakyushu, Southwestern Japan2012

    • Author(s)
      M. Koga and K. Yoshimura
    • Journal Title

      J. Environ. Monit.

      Volume: 14 Issue: 7 Pages: 1951-1958

    • DOI

      10.1039/c2em11003b

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 海水中の微量鉄の存在形態について2015

    • Author(s)
      吉村和久
    • Organizer
      海の緑化研究会シンポジウム
    • Place of Presentation
      東京
    • Year and Date
      2015-03-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] Analytical application of solid phase to flow trace analysis2014

    • Author(s)
      K. Yoshimura, Serenqiqige and S. Matsuoka
    • Organizer
      19th International Conference on Flow Injection Analysis
    • Place of Presentation
      Fukuoka
    • Year and Date
      2014-12-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 磯焼けの溶存鉄原因説にせまる2014

    • Author(s)
      吉村和久
    • Organizer
      都城工業高等専門学校物質工学科特別活動講演会
    • Place of Presentation
      都城市
    • Year and Date
      2014-10-15
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 磯焼けの溶存鉄原因説にせまる2014

    • Author(s)
      吉村和久
    • Organizer
      福岡県立城南高等学校SS環境科学特別講座
    • Place of Presentation
      福岡市
    • Year and Date
      2014-09-26
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 沿岸海水中に存在する超微量Fe(II)の現場分析法2014

    • Author(s)
      岡部成子・松岡史郎・里田 誠・吉村和久
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 固相分光流れ分析法を用いた天然水中の溶存微量アルミニウムのスペシエーション分析2014

    • Author(s)
      野尻祥太・松岡史郎・天日美薫・吉村和久
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] 河川水中に溶存Fe(II)は存在するか-固相分光法によるオンサイト分析2014

    • Author(s)
      吉村和久・板野 悠・上原 渉・Sarenqiqige・松岡史郎
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 九州沿岸域における微量溶存鉄化学種濃度と磯焼け2014

    • Author(s)
      松元 愛・相本道宏・加藤敏朗・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] 河川水中の溶存鉄のスペシエーションと動態2014

    • Author(s)
      上原 渉・板野 悠・松元 愛・野尻祥太・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] 固相分光流れ分析法による超微量Mn(II)の定量2014

    • Author(s)
      小池彩佳・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第63年会
    • Place of Presentation
      東広島市
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] 微量アルミニウムの河川水中での溶存状態2014

    • Author(s)
      野尻祥太・松岡史郎・天日美薫・吉村和久
    • Organizer
      第32回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      北九州市
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 九州沿岸域における溶存鉄化学種濃度と磯焼け2014

    • Author(s)
      松元愛・相本道宏・加藤敏朗・松岡史郎・吉村和久
    • Organizer
      第32回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      北九州市
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 河川における溶存鉄のスペシエーションとその動態2014

    • Author(s)
      上原渉・坂野悠・松元愛・野尻祥太・松岡史郎・吉村和久
    • Organizer
      第32回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      北九州市
    • Year and Date
      2014-07-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 日本の森と海の化学2014

    • Author(s)
      吉村和久
    • Organizer
      防衛大学応用化学科課外講演会
    • Place of Presentation
      横須賀市
    • Year and Date
      2014-06-25
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 海水中の溶存微量鉄の存在状態別定量と磯焼け2014

    • Author(s)
      松元 愛・甲斐さつき・薩仁其其格・相本道宏・加藤敏朗・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第74回分析化学討論会
    • Place of Presentation
      郡山市
    • Year and Date
      2014-05-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 天然水中に存在する超微量Mn(Ⅱ)の定量法開発2014

    • Author(s)
      小池彩佳・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第74回分析化学討論会
    • Place of Presentation
      郡山市
    • Year and Date
      2014-05-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 固相分光流れ分析法を用いた天然水中の溶存微量アルミニウムのスペシエーション分析2014

    • Author(s)
      野尻祥太・松岡史郎・天日美薫・吉村和久
    • Organizer
      日本分析化学会第74回分析化学討論会
    • Place of Presentation
      郡山市
    • Year and Date
      2014-05-25
    • Related Report
      2014 Annual Research Report
  • [Presentation] 固相分光法を用いた海水中の微量溶存鉄の存在状態別定量2012

    • Author(s)
      甲斐さつき、Sarenqiqige、天日美薫、松岡史郎、吉村和久
    • Organizer
      第30回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      指宿
    • Related Report
      2012 Research-status Report
  • [Presentation] 河川における溶存鉄のスペシエーションとその動態2012

    • Author(s)
      喜井直哉、甲斐さつき、Sarenqiqige、松岡史郎、吉村和久
    • Organizer
      第30回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      指宿
    • Related Report
      2012 Research-status Report
  • [Presentation] 固相分光流れ分析法を用いた天然水中の溶存微量アルニウムのスペシエーション分析

    • Author(s)
      野尻祥太・吉村和久・松岡史郎・天日美薫
    • Organizer
      第50回化学関連支部合同九州大会
    • Place of Presentation
      北九州市
    • Related Report
      2013 Research-status Report
  • [Presentation] 固相分光流れ分析法を用いた天然水中の溶存微量アルミニウムのスペシエーション分析

    • Author(s)
      野尻祥太、松岡史郎、天日美薫、吉村和久
    • Organizer
      第31回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      長崎市
    • Related Report
      2013 Research-status Report
  • [Presentation] 海水中の微量溶存鉄濃度の存在状態別定量と磯焼け

    • Author(s)
      松元 愛、甲斐さつき、Sarenqiqige、天日美薫、根本道宏、松岡史郎、吉村和久
    • Organizer
      第31回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      長崎市
    • Related Report
      2013 Research-status Report
  • [Presentation] 河川における溶存鉄のスペシエーション

    • Author(s)
      坂野 悠、喜井直哉、甲斐さつき、Sarenqiqige、松岡史郎、吉村和久
    • Organizer
      第31回九州分析化学若手の会夏季セミナー
    • Place of Presentation
      長崎市
    • Related Report
      2013 Research-status Report
  • [Presentation] 磯焼けの溶存鉄原因説にせまる

    • Author(s)
      吉村和久
    • Organizer
      九州大学理学部化学科2013年度前期特別談話会
    • Place of Presentation
      福岡市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Speciation analysis of dissolved iron in coastal seawater by solid-phase spctrophotometry

    • Author(s)
      K. Yoshimura, S. Kai, Y. Kawakami, Sarenqiqige, Y. Tennichi, M. Aimoto, S. Matsuoka
    • Organizer
      ASIANALYSIS XII
    • Place of Presentation
      福岡市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Speciation analysis of ultratrace chromium in water by on-line reaction/concentration/separation method using a cation-exchange column

    • Author(s)
      Sarenqiqige, M. Ashitomi, K. Yoshimura
    • Organizer
      ASIANALYSIS XII
    • Place of Presentation
      福岡市
    • Related Report
      2013 Research-status Report
  • [Presentation] 海水中の微量溶存鉄の存在状態別定量と磯焼け

    • Author(s)
      松元 愛・甲斐さつき・薩仁其其格・天日美薫・相本道宏・松岡史郎・吉村和久
    • Organizer
      日本分析化学会第62年会
    • Place of Presentation
      東大阪市
    • Related Report
      2013 Research-status Report
  • [Presentation] 固相分光流れ分析法を用いた天然水中の溶存微量アルミニウムのスペシエーション分析

    • Author(s)
      野尻祥太・松岡史郎・天日美薫・吉村和久・宮石義隆
    • Organizer
      日本分析化学会第62年会
    • Place of Presentation
      東大阪市
    • Related Report
      2013 Research-status Report
  • [Presentation] 沿岸海水中に溶存するFeの酸化状態別分析

    • Author(s)
      松岡史郎・島田えりな・甲斐さつき・吉村 和久
    • Organizer
      日本分析化学会第62年会
    • Place of Presentation
      東大阪市
    • Related Report
      2013 Research-status Report
  • [Presentation] Speciation analysis of dissolved chromium leached from stainless steel by on-line reaction/concentration/separation method

    • Author(s)
      Sarenqiqige, M. Ashitomi, K. Yoshimura
    • Organizer
      第51回フローインジェクション分析講演会
    • Place of Presentation
      熊本市
    • Related Report
      2013 Research-status Report
  • [Presentation] 海水中の微量Feの分析化学-固相分光法による沿岸海水中溶存鉄の定量

    • Author(s)
      吉村和久
    • Organizer
      海水中のFeの存在形態と生物利用性に関するワークショップ
    • Place of Presentation
      君津市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 化学平衡から読み解く地球環境

    • Author(s)
      吉村和久
    • Organizer
      平成25年度福岡県理科・化学教育懇談会
    • Place of Presentation
      宗像市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 固相分光法を用いた天然水中の微量溶存鉄のオンサイトスペシエーション分析法

    • Author(s)
      甲斐さつき、川上優芽、Sarenqiqige、天日美薫、松岡史郎、吉村和久
    • Organizer
      第72回分析化学討論会
    • Place of Presentation
      鹿児島
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] ビーズインジェクション法を適用した固相流れ分析法による沿岸海水中の超微量Fe(II)分析

    • Author(s)
      松岡史郎、大塚雅広、吉村和久
    • Organizer
      第72回分析化学討論会
    • Place of Presentation
      鹿児島
    • Related Report
      2012 Research-status Report
  • [Presentation] Solid-phase spectrophotometer for on-site analysis of trace elements in natural water

    • Author(s)
      Sarenqiqige、S. Saputro、甲斐さつき、里田 誠、松岡史郎、吉村和久
    • Organizer
      第72回分析化学討論会
    • Place of Presentation
      鹿児島
    • Related Report
      2012 Research-status Report
  • [Presentation] 新潟県佐渡島・粟島の沿岸域における溶存鉄の酸化状態

    • Author(s)
      松岡史郎、黒沼祥子、下山田朝美、島田えりな、甲斐さつき、吉村和久
    • Organizer
      日本分析化学会第61年会
    • Place of Presentation
      金沢
    • Related Report
      2012 Research-status Report
  • [Book] 製品中に含まれる(超)微量成分・不純物の同定・定量ノウハウ2014

    • Author(s)
      松岡史郎・Sarenqiqige・吉村和久(分担執筆;著者多数)
    • Total Pages
      818
    • Publisher
      技術情報協会
    • Related Report
      2013 Research-status Report
  • [Remarks] 九州大学反応分析化学研究室HP

    • URL

      http://www.scc.kyushu-u.ac.jp/reac/index_j.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 九州大学反応分析化学研究室HP

    • URL

      http://www.scc.kyushu-u.ac.jp/reac/index_j.html

    • Related Report
      2013 Research-status Report

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

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