Journal of Environmental Biology

Persistent organochlorine pesticide residues in water and

sediment samples from Lake Manyas, Turkey

Belda Erkmen1*, Sedat Vahdet Yerli2, F?sun Erk?akan2?and D?rdane Kolankaya2

¹Aksaray University, Faculty of Science and Letters, Department of Biology, Aksaray-68100, Turkey

²Hacettepe University, Department of Biology, Beytepe-Ankara-06532, Turkey

*Corresponding Author email : beldaerkmen@gmail.com

 Publication Data

Paper received:

29 October 2011

Revised received:

20 May 2012

Accepted:

26 July 2012

Abstract

The extent of organochlorine pesticides (OCPs) contamination in Manyas Lake (Bird Lake) and its tributary rivers and streams which is situated near the South-eastern coasts of the Marmara Sea in Turkey was investigated. Residues of OCPs in surface water and sediment samples were analysed by gas chromatography equipped with electron capture detector. The total OCPs concentration (SOCPs) in water and sediment samples ranged from 1.43 to 8.6 ?g l^-1?and from 17.05 to 39.14 ng g^-1, respectively. According to the concentrations and detection frequencies, HCHs, DDTs, heptachlor and heptachlor epoxide were the most dominant compounds among the OCPs. ?The results showed that Manyas Lake was still contaminated by organochlorine pesticides and their residues despite bans on the production and usage over a long time.?

Key words

Organochlorine, Pesticides residue, Gas chromatography, Manyas Lake

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