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Environ Monit Assess. 2007 Feb;125(1-3):147-55. Epub 2006 Sep 7.

Persistent organochlorine pesticide residues in soil and surface water of northern Indo-Gangetic alluvial plains.

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Environmental Chemistry Section, Industrial Toxicology Research Centre, Post Box 80, Mahatma Gandhi Marg, Lucknow, India.


This study reports the concentration levels and distribution pattern of the organochlorine pesticide (OCPs) residues in the soil and surface water samples collected from the northern Indo-Gangetic alluvial plains. A total of 31 soil and 23 surface water samples were collected from the study region in Unnao district covering an area of 2150 km(2) and analyzed for aldrin, dieldrin, endrin, HCB, HCH isomers, DDT isomers/metabolites, endosulfan isomers (alpha and beta), endosulfan sulfate, heptachlor and its metabolites, alpha-chlordane, gamma-chlordane and methoxychlor. In both the soil and surface water samples beta- and delta-isomers of HCH were detected most frequently, whereas, methoxychlor was the least detected pesticide. The results showed contamination of soil and surface water of the region with several persistent organic pesticides. The total OCPs level ranged from 0.36-104.50 ng g(-1) and 2.63-3.72 microg L(-1) in soil and surface water samples, respectively.

[Indexed for MEDLINE]

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