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  • Title: Regional differences and sources of organochlorine pesticides in soils surrounding chemical industrial parks.
    Author: Wang G, Lu Y, Li J, Wang T, Han J, Luo W, Shi Y, Jiao W.
    Journal: Environ Monit Assess; 2009 May; 152(1-4):259-69. PubMed ID: 18563610.
    Abstract:
    Concentrations of organochlorine pesticides (OCPs; dichlorodiphenyltrichloroethanes (DDTs), hexachlorocyclohexanes (HCHs), hexachlorobenzene (HCB)) were investigated in 105 soil samples collected in vicinity of the chemical industrial parks in Tianjin, China. OCP concentrations significantly varied in the study area, high HCH and DDT levels were found close to the chemical industrial parks. The intensity of agricultural activity and distance from the potential OCP emitters have important influences on the OCP residue distributions. Principal component analysis indicates that HCH pollution is a mix of historical technical HCH and current lindane pollution and DDT pollution input is only due to technical DDT sources. The significant correlations of OCP compounds reveal that HCHs, DDTs and HCB could have some similar sources of origin.
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