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Global Monitoring Program for Understanding the Fate of Persistent Man-Made Chemicals in the Tropical Environment

Research Project

Project/Area Number 02041061
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionField Research
Research InstitutionEhime University

Principal Investigator

TATSUKAWA Ryo  Faculty of Agriculture, Ehime University, 農学部, 教授 (50036290)

Co-Investigator(Kenkyū-buntansha) HUE N. D.  University of Hanoi, 教授
WAID J. S.  Latrobe University, 教授
MOWBRAY D. L.  University of Papua New Guinea, 助教授
FUKUSHIMA Minoru  Osaka City Institute of Public Health and Environmental Sciences, 研究員 (70167617)
WATANABE Isao  Osaka Prefectural Institute of Public Health, 研究員 (60159241)
KAWANO Masahide  Faculty of Agriculture, Ehime University, 農学部, 助手 (50116927)
TANABE Shinsuke  Faculty of Agriculture, Ehime University, 農学部, 助教授 (60116952)
Project Period (FY) 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 1990: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsTropical Environment / Global Contamination / Organochlorine Compounds / BHC / DDT / PCB / Marine Pollution / Contamination in Polar Regions
Research Abstract

In order to elucidate the comprehensive behavior of persistent organochlorines such as PCBs, DDTs and BHCs, the present investigation has been undertaken in the terrestrial and coastal environments of tropical and subtropical Asia. Beside this, the fate of organochlorines in the tropical environment and its global implications are also described in the present study, based on the survey of western North and South Pacific and Indian oceans. Consequently, the following results were obtained :
1) The environmental samples from tropical Asia revealed more prominent contamination by organochlorine insecticides rather than PCBs which were mainly used for industrial purposes. However, considerable PCB contamination was observed in various samples from urban areas, suggesting the gradual widespread usage of PCBs even in tropical countries.
2) It was generally observed that the residue levels of organochlorine insecticides in soil and sediments were found to be much lower in tropical regions than … More in temperate ones, whereas those levels in air were comparable in both regions. According to the application test of BHC in the tropical paddy field and flux modeling of it in watershed, it was noted that the applied insecticides were rapidly transported to atmosphere to a large extent, suggesting the tropical regions have a greater impact on the global environment.
3) At the same time, considerable BHC levels were recorded in the oceanic waters off Norther Pacific and polar regions, far away from the source. The calculations of mass transfer of BHCs between air and water revealed that BHC has a strong tendency to transfer from air to water, implying that northern North Pacific and nearby polar waters may play a role as one of the sink for such contaminants.
On the whole, it could be said that large quantities of persistent man-made chemicals used in the tropics are released into the atmosphere. They disperse through "long-range atmospheric transport" on global terms and ultimately deposit into the sink like northern North Pacific. Such a sink should also be considered in ecotoxicological perspective as they may play a major role in the bioaccumulation of residues and toxic manifestation to resident marine organisms. Less

Report

(1 results)
  • 1990 Final Research Report Summary
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Tanabe,S.: "Specific pattern of persistent organochlorine residues in human breast milk from South India." Journal of Agriculture and Food Chemistry. 38. 889-903 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ramesh,A.: "Seasonal variation of persistent organochlorine insecticide residues in Vellar river waters in Tamil Nadu,South India." Environmental Pollution. 67. 289-304 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ramesh,A.: "Persistent organochlorine residues in green mussels from coastal waters of South India." Marine Pollution Bulletin. 21. 587-590 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tanabe,S.: "Organochlorine pesticide and polychlorinated biphenyl residues in foodstuffs from Bangkok, Thailand." Environmental Pollution. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Takeoka,H.: "Fate of the insecticide HCH in the tropical coastal area, South India." Marine Pollution Bulletin. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tanabe,S.: "Fate of HCH(BHC)in tropical paddy field: application test in South India." International Journal of Environmental and Analytical Chemistry. (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tatsukawa,R.: "Long Range Transport of Pesticides" Lewis Publishers, 127-141 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tatsukawa,R.: "Oceanic Processes in Marine Pollution, Vol.6: Physical and Chemical Processes: Transport and Transformation" Robert E. Krieger Publishing Company, 40-52 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tanabe, S.: "Specific pattern of persistent organochlorine residues in human breast milk from South India." Journal of Agriculture and Food Chemistry. 38. 899-903 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ramesh, A.: "Seasonal variation of persistent organochlorine insecticide residues in Vellar river waters in Tamil Nadu, South India." Environmental Pollution. 67. 289-304 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Ramesh, A.: "Persistent organochlorine residues in green mussels from coastal waters of South India." Marine Pollution Bulletin. 21. 587-590 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tanabe, S.: "Organochlorine pesticide and polychlorinated biphenyl residues in foodstuffs from Bangkok, Thailand." Environmental Pollution. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Takeoka, H.: "Fate of the insecticide HCH in the tropical coastal area, South India." Marine Pollution Bulletin. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tanabe, S.: "Fate of HCH(BHC) in tropical paddy field : application test in South India." International Journal of Environmental and Analytical Chemistry. (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tatsukawa, R.: Lewis Publishers. Long Range Transport of Pesticides, 127-141 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Tatsukawa, R.: Robert E. Krieger Publishing Company. Oceanic Processes in Marine Pollution, Vol. 6 : Physical and Chemical Processes : Transport and Transformation, 40-52 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary

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Published: 1990-04-01   Modified: 2016-04-21  

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