Received December 04, 1991,Revised , Accepted , Available online

Volume 5,1993,Pages 342-350

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Effect of the pollution on the Chaohu Lake ecosystem has been described based on the results obtained by analysis of water samples and field survey. The environmental behavior of pollutants and their toxicity is discussed in relation to biological effects. Most of the chemicals identified by GC/MS are biodegradable in the water environment except for some organochlorinated hydrocarbons and PAHs. The pollution of the water body particularly cutrophication has led not only to disruption of natural scenic beauty, but also to changes of biotic communities and extinction of certain species. Deterioration of water quality, eutrophication in particular have certainly had an impact on aquatic organisms and on the human health in this region.

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