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Determination method of total perfluoroalkyl acid precursors and its application to the better understanding of their environmental behavior

Research Project

Project/Area Number 16H02973
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental engineering and reduction of environmental burden
Research InstitutionYokohama National University

Principal Investigator

MASUNAGA Shigeki  横浜国立大学, 大学院環境情報研究院, 名誉教授 (50282950)

Co-Investigator(Kenkyū-buntansha) 中井 里史  横浜国立大学, 大学院環境情報研究院, 教授 (70217644)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2018: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2017: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2016: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Keywordsペルフルオロアルキル酸 / 前駆体 / 酸化分解 / 定量法 / 下水処理場 / 全酸化可能前駆体 / Oxidizable Precursor / TOP Assay / Total Oxidizable Precursor / 有機フッ素化合物
Outline of Final Research Achievements

Oxidation of PFAA precursors to PFAAs by persulfate proposed by Houtz & Sedlak (so called Total Oxidizable Precursor Assay: TOP Assay) was evaluated. Although the assay is simple, the completeness of oxidation depended on molecular structure of precursors and co-existing organics. In addition, PFAAs with shorter carbon chain were always formed. Therefore, its results should be evaluated carefully. We applied the assay to analyze the mass balance of precursors in 3 sewage treatment plants and found that significant amount of precursor was lost during aeration probably due to evaporation.

Academic Significance and Societal Importance of the Research Achievements

PFOAやPFOSによる汚染が世界的に問題視されており、これらは国際規制の対象となったが、環境で分解し、ペルフルオロアルキル酸類を生じる前駆物質に対する管理はこれからである。この問題に対する一つの取り組み方法として、全先駆物質分析法の開発と応用に取り組み、完全ではないものの、前駆体の一部を可視化できることを明らかにした。今後のペルフルオロアルキル酸前駆物質による環境汚染を理解し適切に管理する上で、本成果は、全酸化可能前駆体分析法(TOP Assay)の限界をわきまえた利用を促すガイドラインとなる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report

Research Products

(18 results)

All 2018 2017 2016 Other

All Int'l Joint Research (3 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results) Book (3 results)

  • [Int'l Joint Research] University of Dhaka(バングラデシュ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Univeristy of Dhaka(バングラデシュ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Kwame Nkrumah Univ. of Sci. & Technol./University of Cape Coast(ガーナ)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Occurrence and assessment of perfluoroalkyl acids (PFAAs) in commonly consumed seafood from the coastal area of Bangladesh2017

    • Author(s)
      Md. Habibullah-Al-Mamun, Md. Kawser Ahmedc, Mohammad Raknuzzaman, Md. Saiful Islam, Mir Mohammad Ali, Masahiro Tokumura, Shigeki Masunaga
    • Journal Title

      Marine Pollution Bulletin

      Volume: 124 Pages: 775-785

    • DOI

      10.1016/j.marpolbul.2017.02.053

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Perfluoroalkyl acids (PFAAs) in the Pra and Kakum River basins and associated tap water in Ghana2017

    • Author(s)
      David K. Essumang, Albert Eshun, Jonathan N. Hogarh, John K. Bentum, Joseph K. Adjei, Junya Negishi, Shihori Nakamichi, Md Habibullah-Al-Mamun, Shigeki Masunaga
    • Journal Title

      Science of The Total Environment

      Volume: 576 Pages: 729-735

    • DOI

      10.1016/j.scitotenv.2016.11.035

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Revaluation of stockpile amount of PFOS-containing aqueous film-forming foam in Japan: gaps and pitfalls in the stockpile survey2017

    • Author(s)
      Zushi, Y., Yamamoto, A., Tsunemi, K., Masunaga, S.
    • Journal Title

      Environmental Science and Pollution Research

      Volume: 24 Pages: 6736-6745

    • DOI

      10.1007/s11356-017-8374-1

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Effect of Head Space and Reaction Time on the Quantification of Total Perfluoroalkyl Acid Precursors by Potassium Persulfate - Fluorotelomer Alcohol2018

    • Author(s)
      Shigeki MASUNAGA, Sho KITAGUCHI
    • Organizer
      SETAC North America 39th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ペルフルオロアルキル酸類前駆体総量定量のための酸化分解法の検討2017

    • Author(s)
      中道しほり、藤原理沙、北口翔、益永茂樹
    • Organizer
      第51回日本水環境学会年会
    • Place of Presentation
      熊本大学 黒髪南キャンパス
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] 過硫酸カリウム-水酸化ラジカル法を用いたペルフルオロアルキル酸類前駆体総量定量法における酸化分解時間の検討2017

    • Author(s)
      藤原理沙、中道しほり、北口翔、益永茂樹
    • Organizer
      第51回日本水環境学会年会
    • Place of Presentation
      熊本大学 黒髪南キャンパス
    • Year and Date
      2017-03-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] Mass balance of perfluoroalkyl acids and their precursors in sewage treatment plants2017

    • Author(s)
      Shigeki Masunaga, Ye Feng, and Masahiro Tokumura
    • Organizer
      The 3rd International Conference on Environmental Pollution, Restoration, and Management
    • Place of Presentation
      Quy Nhon, Vietnam
    • Year and Date
      2017-03-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 下水処理場におけるペルフルオロアルキル酸類とそれらの前駆体の挙動2017

    • Author(s)
      YE Feng,徳村雅弘,益永茂樹
    • Organizer
      第26回環境化学討論会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Behaviors of perfluoroalkyl acids and their precursors in some sewage treatment plants2017

    • Author(s)
      S. Masunaga, F. Ye, J. Negishi, M. Tokumura
    • Organizer
      Society of Environmental Toxicology and Chemistry North America 38th Annual Meeting (SETAC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of oxidation time on the quantification of total perfluoroalkyl acid precursors by potassium persulfate - hydroxyl radical method2017

    • Author(s)
      S. Masunaga, R. Fujiwara, S. Nakamichi
    • Organizer
      Society of Environmental Toxicology and Chemistry North America 38th Annual Meeting (SETAC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Occurrence of perfluoroalkyl acids (PFAAs) in surface water of a tropical coastal area (Bay of Bengal coast, Bangladesh)2016

    • Author(s)
      M Habibullah-Al-Mamun and Shigeki Masunaga
    • Organizer
      Water and Environment Technology Conference 2016 (WET2016)
    • Place of Presentation
      Korakuen Campus, Chuo University, Tokyo
    • Year and Date
      2016-08-27
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ペルフルオロアルキル酸前駆体総量定量法の課題と改善策2016

    • Author(s)
      中道しほり,根岸純也,北口翔,徳村雅弘,益永茂樹
    • Organizer
      第25回環境化学討論会
    • Place of Presentation
      新潟コンベンションセンター朱鷺メッセ
    • Year and Date
      2016-06-08
    • Related Report
      2016 Annual Research Report
  • [Book] Persistent Organic Chemicals in the Environment: Status and Trends in the Pacific Basin Countries I Contamination Status2018

    • Author(s)
      Bommanna G. Loganathan, Jong Seong Khim, Prasada Rao S. Kodavanti, Shigeki Masunaga
    • Total Pages
      256
    • Publisher
      Oxford University Press
    • ISBN
      9780841231979
    • Related Report
      2018 Annual Research Report
  • [Book] Persistent Organic Chemicals in the Environment: Status and Trends in the Pacific Basin Countries II Temporal Trends2018

    • Author(s)
      Bommanna G. Loganathan, Jong Seong Khim, Prasada Rao S. Kodavanti, Shigeki Masunaga
    • Total Pages
      272
    • Publisher
      Oxford University Press
    • ISBN
      9780841231993
    • Related Report
      2018 Annual Research Report
  • [Book] Persistent Organic Chemicals in the Environment: Status and Trends in the Pacific Basin Countries II Temporal Trends2016

    • Author(s)
      Shigeki Masunaga and Yasuyuki Zushi
    • Publisher
      American Chemical Society
    • Related Report
      2016 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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