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Environ Monit Assess

Title:		Selected organochlorine pesticides (OCPs) in surface soils from three major states from the northeastern part of India
Author(s):		Devi NL; Chakraborty P; Shihua Q; Zhang G;
Address:		"State key Laboratory of Biogeology and Environmental Geology, School of Environmental Studies, China University of Geosciences, 388, Lumo Road, Wuhan, 430074, China"
Journal Title:		Environ Monit Assess
Year:		2013
Volume:		20130105
Issue:		8
Page Number:		6667 - 6676
DOI:		10.1007/s10661-012-3055-5
ISSN/ISBN:		1573-2959 (Electronic) 0167-6369 (Linking)
Abstract:		"Eighty-two surface soil samples were collected from forest, grassland, tea estate, wildlife sanctuary, wetland, and roadside areas from the northeastern states of India, viz., Tripura, Manipur, and Assam. Thirteen different organochlorine pesticides (OCPs) were detected from background soils using gas chromatography electron capture detector. Manipur soils were found to be with higher concentration of dichlorodiphenyltrichloroethanes (DDTs), hexachlorocyclohexanes (HCHs), and endosulfan followed by Tripura and Assam. The spearman correlation coefficient shows significant correlation between HCHs, DDTs, and endosulfan isomers (r (2) > 0.5 and p < 0.05). Additionally, alpha-HCH, delta-HCH, o,p'-DDE, and endosulfan-sulfate shows good correlation with total organic carbon in soil (r (2) = 0.5, p = 0.05), indicating that the soil organic matter could enhance adsorption of these compounds, also demonstrating that the present OCPs in the background soil were from similar source. Further principal component analysis evaluates that most of the higher volatile compounds where clustered together in soil. However, after comparing with different states of Indian soil samples, the concentrations of OCPs in the present study areas are much lower and comparable with background soil across the globe"
Keywords:		"Agriculture Environmental Monitoring Environmental Pollution/statistics & numerical data Hydrocarbons, Chlorinated/*analysis India Pesticides/*analysis Soil/*chemistry Soil Pollutants/*analysis;"
Notes:		"MedlineDevi, Ningombam Linthoingambi Chakraborty, Paromita Shihua, Qi Zhang, Gan eng Research Support, Non-U.S. Gov't Netherlands 2013/01/05 Environ Monit Assess. 2013 Aug; 185(8):6667-76. doi: 10.1007/s10661-012-3055-5. Epub 2013 Jan 5"