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Paper Details

Concentration of Organo Chlorine pesticide residues in sediments from the Godavari River of East Godavari District of Andhra Pradesh

David Wilson N1, Nageswara Rao I 2, Narasimha Reddy K3

Journal Title:Journal of Chemical, Biological and physical sciences
Abstract


This study reports the concentration levels and distribution pattern of the persistent pesticides residues in soil sediments of the Godavari river at Kotipalli and Dangeru basins collected seasonally over a period of one year. The soil sediment were collected from four different seasons i.e Pre-Monsoon, Onset- Monsoon, Monsoon and Post-Monsoon and analyzed for their pesticide profile. The study has shown the presence of organochlorine pesticides in the soil sediment of River Godavari at Kotipalli and Dangeru in East Godavari District of Andhra Pradesh. We used Liquid-liquid extraction followed by GC-ECD for the determination of these compounds. Among the various pesticides analyzed, high concentration of DDT, Transchlordane, Cis-chlordane, Endosulfan,PP-DDE, Endo- Sulfansulfate and Endrinketone were observed in two basins of the river. The concentration of DDT in soil sediment was quite high which might be due to slow degradation of DDT in soil i.e. 75 100% in 4-30 years. The present study was first attempt to identify and quantify some selected pesticides in soil sediment of the river Godavari.

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