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ABSTRACT

Pesticides pollution in water, sediment and Fishes of Kolavai Lake in Chengalpet, Tamil Nadu, India

Ramesh babu. K*, Selvanayagam. M.

ABSTRACT

The qualitative Pesticides risk assessment of Kolavai Lake water,Sediment and three fish samples have been carriedout in various seasons. The pesticides analysis revealed that the water and the sediment were not possess the DDT,Aldrin,Endrin, Carbofuran and Malathion. The pesticides analysis in fishes revealed that the two fish Oreochromis mossambicusand Labeo rohita muscle tissues were not possess DDT, Aldrin, Endrin, Carbofuran and Malathion. But the bottom feeder Cirrhinus mrigala alone was found with the chloro phyri phos in the range from 37ppb to 72ppb. The highest value (72ppb) was observed in monsoon and the lowest value (37ppb) was observed in summer. The bottom feeder (Mrigal) alone polluted with Choloro phyri phos . Key words: Kolavai Lake, Oreochromis mossambicus,,Labeo rohita, Cirrhinus mrigala, DDT, Aldrin, Endrin, Carbofuran and Malathion.

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