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SEPARATE MEASUREMENT OF PARTICULATE AND DISSOLVED POLYCYCLIC AROMATIC HYDROCARBONS IN ENVIRONMENTAL WATER AND THEIR MUTAGENICITY ASSAY

Research Project

Project/Area Number 11680538
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental dynamic analysis
Research InstitutionOKAYAMA UNIVERSITY OF SCIENCE

Principal Investigator

NOGAMI Yusaku  OKAYAMA UNIV.OF SCIENCE, SCIENCES, PROFESSOR, 理学部, 教授 (00172768)

Co-Investigator(Kenkyū-buntansha) KIRA Shohei  OKAYAMA UNIV.MEDICAL SCHOOL, MEDICAL, PROFESSOR, 医学部, 教授 (50033212)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2000: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1999: ¥900,000 (Direct Cost: ¥900,000)
KeywordsWATER ENVIRONMENT / POLYCYCLIC AROMATIC HYDROCARBONS / BENZO(A)PYRENE / SUSPENDED SOLID / SEPARATE MEASUREMENT / 懸濁態ベンツピレン / 溶存態ベンツピレン / 変異原性
Research Abstract

The state of polycyclic aromatic hydrocarbons (PAHs) in the nature is one of the important issues from the viewpoints of environmental chemistry. When PAHs are transported into environmental water from atmosphere, they adsorb quickly to the suspended solids (SS) because of their hydrophobic property. In this study, we investigated the state of PAHs in natural water obtained from three rivers and Lake Kojima in Okayama Prefecture, Japan. First, SS was separated by glass fiber filter in accordance with the JIS K0102. Subsequently, the amounts of PAHs in SS and in filtrate were measured separately.
The average concentrations of SS in the rivers were 1-2 mg/L, and benzo[a]pyrene in SS (p-BaP) were 1-4 ng/L.The mass ratios of p-BaP to total benzo[a]pyrene (t-BaP = p-BaP+d-BaP) were ca. 60%.
On the other hand, the average concentrations of SS at three different points in L.Kojima were 20-30 mg/L.However, the t-BaP concentrations in water of the lake were the same as those of the rivers. It was also clarified that the ratios of p-BaP to t-BaP of the lake were >90%. Other PAHs, fluoranthene and perylene seem to be adsorbed to SS, too.
The mutagenicity assay of extracts from SS and filtrate was performed according to the preincubation technique of Yahagi et al.. However, no positive ewsult was observed from 300 mL equivalent sample.
The results obtained in this study show that the PAHs amounts in the rivers and the lake are ppt level, and SS adsorbs the most of these chemicals. Therefore, the amounts of PAHs in SS and in filtrate have to be measured simultaneously to evaluate the problems such as endocrine disruption.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report
  • Research Products

    (11 results)

All Other

All Publications (11 results)

  • [Publications] Y.NOGAMI: "Benzo(a)pyrene adsorbed to suspended solid in fresh water"Environmental Toxicology. 15. 500-503 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.KIRA: "Measurement of benzo(a)pyrene in sea water and in mussels in the Seto Inland sea, Japan"Bulletin of Environmental Contamination and Toxicology. 63. 631-637 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 野上祐作: "水環境中の懸濁粒子に吸着されている多環芳香族炭化水素の測定"第35回日本水環境学会年会講演集. (印刷中). (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.NOGAMI: "Benzo(a)pyrene adsorbed to suspended solid in fresh water"Environmental Toxicology. 15. 500-503 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] S.KIRA: "Measurement of benzo (a) pyrene in sea water and in mussels in the Seto Inland Sea, Japan"Bulletin of Environ. Contam. Toxicol.. 65. 631-637 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.NOGAMI: "Polycyclic aromatic hydrocarbons adsorbed to suspended solid in fresh water"The 35th Annual Report of Japan Society on Wat.Environ.. (in press). (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Y.NOGAMI: "Benzo(a)pyrene adsorbed to suspended solid in fresh water"Environmental Toxicology. 15. 500-503 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.KIRA: "Measurement to benzo(a)pyrene in sea water and in mussels in the Seto Inland sea,Japan"Bulletin of Environmental Contamination and Toxicology. 631-637 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 野上祐作: "水環境中の懸濁粒子に吸着されている多環芳香族炭化水素の測定"第35回日本水環境学会年会講演集. (印刷中). (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] S.KIRA: "Measurement of benzo(a)pyrene in sea water and in mussels in the Seto Inland Sea"Book of Abstracts,9th International Symposium on Toxicity Assessment. 25-25 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] Y.NOGAMI: "Benzo(a)pyrene adsorbed to suspended solid in fresh water"Environmental Toxicology. Sym 23(in press). (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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