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Chemosphere. 2006 Jul;64(4):588-95. Epub 2006 Jan 3.

Evaluation of HCH isomers and metabolites in soils, leachates, river water and sediments of a highly contaminated area.

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Department of Analytical Chemistry, University of A Coruña, Campus da Zapateira, E-15071 A Coruña, Spain.


In this work we evaluate the contamination caused by HCH residues in the soil, leachates, river water and sediments of an industrial estate of the NW of Spain. We study the distribution of the isomers in the different matrices, analysing 37 soil samples, collected in eight points at several depths, six natural leachates, four river water samples and three river sediments. Soil and leachate samples present very high levels of HCH isomers, higher than the established by legislation, and some pesticides were also detected in the analysed river water whereas no pesticides were detected in the river sediments. The distribution of isomers was different depending on the matrix analysed. Some natural degradation products and also other organochlorine pesticides were detected in the samples analysed.

[Indexed for MEDLINE]

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