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Development of a method for identification and assessment of sources of nitrate-polluted groundwater using coprostanol

Research Project

Project/Area Number 20K12209
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 64010:Environmental load and risk assessment-related
Research InstitutionNagasaki University

Principal Investigator

Nakagawa Kei  長崎大学, 水産・環境科学総合研究科(環境), 教授 (90315135)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords硝酸性窒素 / 地下水汚染 / コプロスタノール / カラム実験 / フィールド調査 / 汚染物質指標 / 汚染指標物質 / 数値シミュレーション
Outline of Research at the Start

硝酸性窒素による地下水汚染において,その汚染源位置および汚染原因を正確に把握することは,対策を講ずる上で重要である.この汚染原因を把握する方法は,これまでにいくつか提案されているものの,しばしば不可能なケースに直面するといった問題が残されている.そこで,本研究では,新たな汚染原因の分離方法および汚染源特定方法を確立することを目的として,糞便汚染指標の一つであるコプロスタノールの濃度を利用することを提案し,数値シミュレーションによる汚染源位置の同定を試みる.この手法の適用事例として,名水百選や水の郷に選定され,本来水のきれいな地域とされる島原市において生じている深刻な地下水汚染を対象とする.

Outline of Final Research Achievements

The purpose of this study was to investigate the migration characteristics of coprostanol using column experiments and field investigations to confirm the proposed use of coprostanol as a new method for identifying the causes of nitrate-nitrogen contamination in groundwater. The results showed that coprostanol was strongly adsorbed on the surface. A field survey revealed that coprostanol was detected even when nitrate-nitrogen concentrations were reduced due to denitrification, which was suspected to be an indication of fecal contamination. The land use upstream of the flow paths suggests that one of the factors was livestock waste.

Academic Significance and Societal Importance of the Research Achievements

コプロスタノールの土壌への吸着特性を明らかしたことで,地下水と河川の相互交流関係を,コプロスタノール及び硝酸性窒素を通じて明らかにすることができ,現場における地下水と河川水の挙動の理解を助け,汚染の実態調査や汚染対策を講ずる上で実務的な成果につながることが期待できる.またコプロスタノールの測定と数値シミュレーション手法を組み合わせることにより,汚染源を推定することができることが分かった.以上より,硝酸性窒素による地下水汚染が深刻である地域の水環境の修復へ筋道をつけることができ,地域の貴重な水資源の保全に繋がる成果であることから,清澄な水の確保・保全の観点からも社会的意義のある成果である.

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (51 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (4 results) Journal Article (17 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 15 results,  Open Access: 9 results) Presentation (27 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results) Book (3 results)

  • [Int'l Joint Research] ルンド大学(スウェーデン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ルンド大学/工学部/水資源工学部門(スウェーデン)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ルンド大学/工学部/水資源工学部門(スウェーデン)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ルンド大学/工学部/水資源工学部門(スウェーデン)

    • Related Report
      2020 Research-status Report
  • [Journal Article] 地下水利用と水質的な課題と評価2024

    • Author(s)
      中川 啓
    • Journal Title

      地下水技術

      Volume: 65 Pages: 3-22

    • Related Report
      2023 Annual Research Report
  • [Journal Article] テクスチャ情報と色情報を用いたボーリングコア画像からの透水係数の推定2023

    • Author(s)
      平岡 透, 田川菜緒, 片山徹也, 中川 啓
    • Journal Title

      写真測量とリモートセンシング

      Volume: 62 Pages: 67-72

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coprostanol adsorption behavior in agricultural soil, riverbed sediment, and sand2023

    • Author(s)
      M. Shahidul Islam , Kei Nakagawa , Zhi-Qiang Yu , Yuji Takao , Ronny Berndtsson
    • Journal Title

      Journal of Environmental Chemical Engineering

      Volume: 11 Issue: 3 Pages: 110029-110029

    • DOI

      10.1016/j.jece.2023.110029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transition of management condition, goals and measures regarding the plans to reduce nitrate pollution in Shimabara Peninsula, Nagasaki Prefecture, Japan2022

    • Author(s)
      渡辺貴史, 濱崎宏則, 中川 啓
    • Journal Title

      Journal of Groundwater Hydrology

      Volume: 64 Issue: 4 Pages: 273-290

    • DOI

      10.5917/jagh.64.273

    • ISSN
      0913-4182, 2185-5943
    • Year and Date
      2022-11-30
    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reorganization of Water Works Induced by Revised Water Supply Act: Characteristics, Uses, and Problems Associated with Groundwater2022

    • Author(s)
      中川 啓
    • Journal Title

      Review of Consumer Co-operative Studies

      Volume: 562 Issue: 0 Pages: 30-38

    • DOI

      10.57538/consumercoopstudies.562.0_30

    • ISSN
      0911-1042, 2758-5492
    • Year and Date
      2022-11-05
    • Related Report
      2022 Research-status Report
  • [Journal Article] Effects of the Japanese Nitrate Directive Plan (NDP) to curb groundwater nitrate-nitrogen content in the Miyakonojo River basin2022

    • Author(s)
      Yu Zhi-Qiang、Nakagawa Kei、Berndtsson Ronny、Hiraoka Toru、Suzuki Yoshihiro
    • Journal Title

      Journal of Hydrology

      Volume: 615 Pages: 128563-128563

    • DOI

      10.1016/j.jhydrol.2022.128563

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Groundwater Quality and Potential Pollution in the Southern Shimabara Peninsula, Japan2022

    • Author(s)
      Nakagawa Kei、Amano Hiroki、Yu Zhi-Qiang、Berndtsson Ronny
    • Journal Title

      Water

      Volume: 14 Issue: 24 Pages: 4106-4106

    • DOI

      10.3390/w14244106

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Relation Between Nitrate Concentration in Groundwater and Precipitation in Miyakonojo Basin2021

    • Author(s)
      平岡 透, 中川 啓, 野中 尋史, 廣田 雅春, 鈴木 祥広
    • Journal Title

      JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

      Volume: 34 Issue: 5 Pages: 303-310

    • DOI

      10.3178/jjshwr.34.303

    • NAID

      130008090836

    • ISSN
      0915-1389, 1349-2853
    • Year and Date
      2021-09-05
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Interpolation of Nitrate Concentration in Groundwater Using Spatiotemporal Analysis with Land Use Information2021

    • Author(s)
      平岡 透, 中川 啓, 野中 尋史, 廣田 雅春, 鈴木 祥広
    • Journal Title

      JOURNAL OF JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES

      Volume: 34 Issue: 3 Pages: 181-191

    • DOI

      10.3178/jjshwr.34.181

    • NAID

      130008052520

    • ISSN
      0915-1389, 1349-2853
    • Year and Date
      2021-05-05
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Groundwater nitrogen response to regional land-use management in South Japan2021

    • Author(s)
      Yu, Z-Q, Nakagawa, K, Berndtsson,R, Hiraoka, T, Suzuki, Y
    • Journal Title

      Environmental Earth Sciences

      Volume: 80 Issue: 18 Pages: 634-634

    • DOI

      10.1007/s12665-021-09936-5

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 要因分解解析による島原半島における窒素供給量変化の評価2021

    • Author(s)
      中川 啓, 藤井秀道
    • Journal Title

      地下水学会誌

      Volume: 64 Pages: 91-100

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Distribution of heavy metals and related health risks through soil ingestion in rural areas of western Japan2021

    • Author(s)
      Kei Nakagawa, Tomomi Imura, Ronny Berndtsson
    • Journal Title

      Chemosphere

      Volume: 290 Pages: 133316-133316

    • DOI

      10.1016/j.chemosphere.2021.133316

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatiotemporal variation of nitrate concentrations in soil and groundwater of an intensely polluted agricultural area2021

    • Author(s)
      Nakagawa, K, Amano, H, Persson, M, Berndtsson, R
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 2598-2598

    • DOI

      10.1038/s41598-021-82188-2

    • NAID

      120006959878

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatial Characteristics of Groundwater Chemistry in Unzen, Nagasaki, Japan2021

    • Author(s)
      Nakagawa, K, Amano, H, Berndtsson, R
    • Journal Title

      Water

      Volume: 13 Issue: 4 Pages: 426-426

    • DOI

      10.3390/w13040426

    • NAID

      120007000274

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] METHOD OF LEACHING FROM SOILS IN THE GROUMDWATER NITRATE POLLUTED AREA2020

    • Author(s)
      中川 啓, 竹盛匠吾, 朝倉 宏
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 5 Pages: I_1-I_8

    • DOI

      10.2208/jscejer.76.5_I_1

    • NAID

      130007970604

    • ISSN
      2185-6648
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] RELATIONSHIP ANALYSIS BETWEEN TEXTURE INFORMATION OF GRAVEL IMAGES AND HYDRAULIC CONDUCTIVITY2020

    • Author(s)
      今村彪雅,平岡透,片山徹也,中川啓
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 5 Pages: I_479-I_485

    • DOI

      10.2208/jscejer.76.5_I_479

    • NAID

      130007970703

    • ISSN
      2185-6648
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] SEPARATION OF FLUCTUATION COMPONENT OF GROUNDWATER LEVEL USING SPECTRAL ANALYSIS2020

    • Author(s)
      中川 啓, 倉本 菜摘
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 5 Pages: I_487-I_493

    • DOI

      10.2208/jscejer.76.5_I_487

    • NAID

      130007970690

    • ISSN
      2185-6648
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 硝酸性窒素汚染とその原因評価方法2023

    • Author(s)
      中川 啓
    • Organizer
      長崎地盤研究会第133回勉強会ジオラボ
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Applicability of Sterols for Estimating the Pollution Source in Kumamoto City Area2023

    • Author(s)
      Li, Z , Nakagawa, K , Islam, M.S , Takao, Y , Aihara, Y , Hosono, T
    • Organizer
      JAGH 2023 Spring Meeting
    • Related Report
      2023 Annual Research Report
  • [Presentation] Source Identification of Nitrate Pollution in Groundwater Using Fecal Sterol Markers of an Urban Area in Japan2023

    • Author(s)
      Nakagawa, K , Li, Z , Ialam, M.S , Aihara, T , Hosono, T , Takao, Y
    • Organizer
      AOGS2023 20th Annual Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Using sterol ratios to monitor groundwater quality and fecal pollution sources in Kumamoto city area, Japan2023

    • Author(s)
      Li, Z , Nakagawa, K , Islam M.S , Takao, Y , Aihara T , Hosono, T
    • Organizer
      JSHWR/JAHS 2023 Annual Meeting
    • Related Report
      2023 Annual Research Report
  • [Presentation] コプロスタノールの土・砂・堆積物に対する吸着特性2023

    • Author(s)
      中川 啓 , M. Shahidul Islam , Zhi-Qiang Yu , 高尾雄二 , Ronny Berndtsson
    • Organizer
      2023 年度 土壌物理学会大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 水道水源井における硝酸性窒素濃度変化の数値計算による再現について2022

    • Author(s)
      中川 啓, 新貝文昭, 若狭 愛
    • Organizer
      日本地下水学会春季講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Groundwater Chemistry in the Southern Part of the Shimabara Peninsula, Japan2022

    • Author(s)
      Kei NAKAGAWA, Zhi-Qiang YU, Hiroki AMANO
    • Organizer
      AOGS 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Novel Method to Identify the Source of Groundwater Nitrate Pollution in Intensive Agricultural and Livestock Area in Japan2022

    • Author(s)
      Nakagawa, K
    • Organizer
      Vietnam International Water Week (VACI2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] An integrated approach to investigate nitrate pollution in groundwater in Shimabara Peninsula, Nagasaki, Japan2022

    • Author(s)
      Kei Nakagawa, Hiroki Amano
    • Organizer
      AGU Fall Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Adsorption behavior of coprostanol on agricultural soil,riverbed sediment, and sandy soil2022

    • Author(s)
      Md. Shahidul Islam, Kei Nakagawa, Zhi-QiangYu, Yuji Takao
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 水の安定同位体分析を通して見えてきた熊本地域における 地下水流動機構の空間特性ならびにその季節変動2022

    • Author(s)
      相原泰斗, 細野高啓, 中川 啓, 天野弘基, 一柳錦平
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] 地下水の硝酸性窒素汚染と要因分解解析2022

    • Author(s)
      中川 啓
    • Organizer
      地下水のサロン(日本地下水学会)
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 地下水利用と水質的な課題と評価2022

    • Author(s)
      中川 啓
    • Organizer
      一般社団法人 地下水技術協会 一般社団法人 全国さく井協会 技術講演会 2022 11 地下水の利用 -さまざまな場面で活用される地下水-
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] インフィルトロメータによるボーリングコアの透水係数の鉛直分布の測定2021

    • Author(s)
      倉本菜摘, 中川 啓
    • Organizer
      2021年度土壌物理学会大会 第63回シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] ポット試験による土壌中のPbがニンジンの生育に及ぼす影響およびリスク評価2021

    • Author(s)
      井村友美, 中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 島原市における2021 年8 月の降雨による土壌水分、地下水位の変化について2021

    • Author(s)
      中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 都城盆地における硝酸性窒素濃度の時空間的な変動特性2021

    • Author(s)
      Zhiqiang YU, 中川 啓, 平岡 透, 鈴木祥広
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] ミニディスクインフィルトロメータを用いたボーリングコアの透水係数の測定2021

    • Author(s)
      倉本菜摘, 中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 農用地における作物を経由した Pb のリスク評価についてのポット試験2021

    • Author(s)
      井村友美, 中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] The Spatiotemporal Change Features of Groundwater Nitrogen Content in Miyakonojo River Basin, South Japan2021

    • Author(s)
      Yu, Z-Q, Nakagawa, K, Berndtsson, R, Hirano, T, Suzuki, Y
    • Organizer
      The 4th Environmental and Natural Resources International Conference (ENRIC 2021)
    • Related Report
      2021 Research-status Report
  • [Presentation] 硝酸性窒素汚染地域における土壌の溶出試験方法について2020

    • Author(s)
      中川 啓, 竹盛匠吾, 朝倉 宏
    • Organizer
      第28回地球環境シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 砂礫画像のテクスチャ情報と透水係数の関係分析2020

    • Author(s)
      今村彪雅, 平岡 透, 片山徹也, 中川 啓
    • Organizer
      第28回地球環境シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] スペクトル解析による地下水位の変動成分分離2020

    • Author(s)
      中川 啓, 倉本菜摘
    • Organizer
      第28回地球環境シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 阿蘇南郷谷における水循環への水田の影響について2020

    • Author(s)
      天野弘基, 市川 勉, 平野葉一, 中川 啓
    • Organizer
      第28回地球環境シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] スペクトル解析による地下水位データからの潮汐および揚水影響の除去2020

    • Author(s)
      倉本菜摘, 中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 都城盆地の浅層地下水における硝酸汚染と土地利用の関係2020

    • Author(s)
      Zhi-Quang Yu, 中川 啓, 平岡 透, 鈴木祥宏
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] 長崎県島原市内における土壌中の重金属濃度調査と健康リスク評価2020

    • Author(s)
      井村友美, 中川 啓
    • Organizer
      日本地下水学会秋季講演会
    • Related Report
      2020 Research-status Report
  • [Book] 水文・水資源ハンドブック 第二版(11.7.1 地下水障害(地盤沈下・塩水化・汚染))2022

    • Author(s)
      水文・水資源学会、手計 太一(11.7.1 中川 啓)
    • Total Pages
      640
    • Publisher
      朝倉書店
    • ISBN
      9784254261745
    • Related Report
      2022 Research-status Report
  • [Book] 環境保全のための地下水水質化学 上2021

    • Author(s)
      C. A. J. アペロ、D. ポストマ、中川 啓 監訳
    • Total Pages
      372
    • Publisher
      九州大学出版会
    • ISBN
      9784798503073
    • Related Report
      2020 Research-status Report
  • [Book] 環境保全のための地下水水質化学 下2021

    • Author(s)
      C. A. J. アペロ、D. ポストマ、中川 啓 監訳
    • Total Pages
      360
    • Publisher
      九州大学出版会
    • ISBN
      9784798503080
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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