| Project/Area Number |
08680554
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Ehime University |
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Principal Investigator |
KAWANO Masahide Ehime University, Department of Environmental Conservation, Associate Professor, 農学部, 助教授 (50116927)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,800,000 (Direct Cost: ¥2,800,000)
Fiscal Year 1997: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1996: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | Poland / Chemical contamination / Environmental pollution / PCBs / DDTs / Extractable organic halogen / Soil / Sediment / PCB / DDT |
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| Research Abstract |
Chemical contamination caused by man-made organochlorine compounds such as PCBs, DDTs, HCHs, CHLs, and HCB were investigated in environmental samples collected in Poland. The resuls showed that relatively high concentrations of PCBs were present in soils from industrialized areas such as coal mining and chemical factories located in southern Poland, and coastal sediments collected at near shipyards in northern Poland. It is estimated that PCBs were used as chemical agents for machinery of coal mincs and an ingredient for paint for ships. Additionally, relativery high concentrations of PCBs and DDTs were found in soils from a former Soviet army base located in northwest Poland. These compouns were also present in sediment samples from lakes and ponds located in north, northwest and south Poland. The results showed that man-made organochlorines are ubiquitous environmental pollutants in the Polish environment.
In order to make clear the presence of unidentified organohalogen compouns, contribution percentage of indentified (known) organohalogen compounds in extractable organic halogen (EOX) were determined in the Polish environmental samples. The order of concentrations of EOX was EOCI>EOB_1>EOI.The concentrations of EOX in harbor porpoise (Phocoena phocoena) were higher than those in the fish they eat. It is suggested that the EOX present in marine mammals is accumulated through the marine food chain of the Baltic Sea. The greater part of EOCI detected in sediment and biological samples was occupied by unidentified compouns. It is necessary to analyze individual compounds in EOX residue in Polish environment in order to investigate their sources and to evaluate the effects to wildlife and the people living in Poland.
It is concluded that many halogenated compouns are spread over the Polish environment and that chemical pollution is occurring on the coastal areas of the Bay of Gdansk and the Baltic Sea.
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