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Distribution of Pesticides in Sediments from Municipal Drains in Delhi, India

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Author(s): Bhupander Kumar | R. Gaur | G. Goel | Meenu Mishra | Dev Prakash | S.K. Singh | R.B. Lal | Sanjay Kumar | C.S. Sharma

Journal: Asian Journal of Scientific Research
ISSN 1992-1454

Volume: 4;
Issue: 3;
Start page: 271;
Date: 2011;
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Keywords: Organochlorine pesticides (OCPs) | high performance liquid chromatography (HPLC) | gas chromatograph (GC) | herbicides | sediment | organophosphate pesticides (OPPs)

ABSTRACT
A study was conducted to assess the levels of organic pollutants i.e. organochlorine pesticides, (OCPs), organophosphate pesticides (OPPs) and herbicides, in sediments from nine major municipal drains in Delhi, India. Sediment samples from Delhis municipal drains were extracted with acetone/dichloromethane (1:1v/v) and analyzed using GC and HPLC. The average concentration of ?OCPs, ?OPPs and ?herbicides was 27.269.7 ng g-1 (dry wt.), 80.8922.4 ng g-1 (dry wt.) and 16.204.45 ng g-1(dry wt.), respectively. Among OCPs ?HCH alone accounts 63% followed by ?DDT (16%), ?endosulphan (13%) and drins 8%. The ratio of p,p-DDT/?DDT (0.23), p,p-DDT/p,p-DDE (0.26) and o,p-DDT/p,p-DDT (
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