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Nontarget screening of organohalogen compounds in marine shellfish and searching for unknown substances

Research Project

Project/Area Number 19K21559
Project/Area Number (Other) 18H06497 (2018)
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund (2019)
Single-year Grants (2018)
Review Section 1101:Environmental analyses and evaluation, environmental conservation measure and related fields
Research InstitutionEhime University

Principal Investigator

Goto Akitoshi  愛媛大学, 沿岸環境科学研究センター, 特定研究員 (90825689)

Project Period (FY) 2018-08-24 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords有機ハロゲン化合物 / GCxGC-HRToFMS / 網羅分析 / 構造解析
Outline of Research at the Start

二次元ガスクロマトグラフ-高分解能飛行時間型質量分析計 (GCxGC-HRToFMS) とガスクロマトグラフ-高分解能二重収束型質量分析計 (GC-HRMS) を駆使して、瀬戸内海の魚介類に蓄積する多様な有機ハロゲン化合物を網羅的にスクリーニングし、沿岸域における汚染のプロファイルや時空間トレンドを解析する。また同時に、構造・起源未知物質の探索・同定を試み、それらの発生・排出起源を推定する。

Outline of Final Research Achievements

The present study established analytical methods using two-dimensional gas chromatograph-high resolution time-of-flight mass spectrometer (GCxGC-HRToFMS) and GC-magnetic sector HRMS (GC-HRMS), and performed nontarget/target screening of organohalogen compounds (OHCs) in mussels and sediment from Hiroshima Bay, Japan. The results showed that unknown mixed halogenated compounds (C9H6Br3ClO, C9H5Br4ClO, C9H4Br5ClO), in addition to known OHCs such as persistent organic pollutants (POPs), are ubiquitous in the coastal environment and possess bioaccumulative potential as high as POPs.

Academic Significance and Societal Importance of the Research Achievements

本研究で確立したノンターゲット/ターゲット分析法を環境モニタリングに適用することで、従来の手法では分離・検出・同定が困難であった化合物 (異性体) の網羅的なスクリーニングが可能となり、これまで見落とされてきた毒性化合物の構造解析や起源推定の精緻化が期待できる。本研究では上記のスクリーニング手法を駆使して、海産の二枚貝から新たに生物蓄積性化合物を発見し、学術的に新規性の高い知見を提示した。この成果は、海洋生態系の保全や水産資源の安全性評価に資する有用な基礎データとなることが期待され、その社会的意義や波及効果は大きい。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • Research Products

    (6 results)

All 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (3 results) (of which Int'l Joint Research: 2 results)

  • [Int'l Joint Research] CSIR Water Research Institute(ガーナ)

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Nontarget and Target Screening of Organohalogen Compounds in Mussels and Sediment from Hiroshima Bay, Japan: Occurrence of Novel Bioaccumulative Substances2020

    • Author(s)
      Goto Akitoshi、Tue Nguyen Minh、Isobe Tomohiko、Takahashi Shin、Tanabe Shinsuke、Kunisue Tatsuya
    • Journal Title

      Environmental Science & Technology

      Volume: 54 Issue: 9 Pages: 5480-5488

    • DOI

      10.1021/acs.est.9b06998

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Complex Mixtures of Brominated/Chlorinated Diphenyl Ethers and Dibenzofurans in Soils from the Agbogbloshie e-Waste Site (Ghana): Occurrence, Formation, and Exposure Implications2019

    • Author(s)
      Tue Nguyen Minh、Matsushita Takafumi、Goto Akitoshi、Itai Takaaki、Asante Kwadwo Ansong、Obiri Samuel、Mohammed Saada、Tanabe Shinsuke、Kunisue Tatsuya
    • Journal Title

      Environmental Science & Technology

      Volume: 53 Issue: 6 Pages: 3010-3017

    • DOI

      10.1021/acs.est.8b06929

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Non-target screening for POP-like compounds in Japanese bivalves using GCxGC-HRToFMS2019

    • Author(s)
      Goto, A., Tue, N. M., Tanabe, S., Kunisue, T.
    • Organizer
      39th International Symposium on Halogenated Persistent Organic Pollutants (DIOXIN 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 起源未知ミックスハロゲン化ダイオキシン類の構造解析と濃縮性評価2019

    • Author(s)
      後藤哲智, Nguyen Minh Tue, 田辺信介, 国末達也
    • Organizer
      第67回質量分析総合討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Target screening for potential dioxin-like compounds in Japanese bivalves using GCxGC-TOFMS2018

    • Author(s)
      Goto A., Tue, N. M., Tanabe, S. and Kunisue, T.
    • Organizer
      The 18th International Conference on Harmful Algae (ICHA2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research

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Published: 2018-08-27   Modified: 2024-03-26  

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