title: [Distribution and composition of organochlorine pesticides in surface water body of Chaohu Lake].
abstract: By the method of SPE-GC/ECD, this paper studied the distribution and composition of organochlorine pesticides (OCPs) in the surface water body of Chaohu Lake. At the 13 sampling sites of study area, a total of 16 kinds of OCPs, including HCHs, DDTs, beta-Endosulfan, Aldrin, hexachlorobenzene, and Heptachlor, were detected. The total OCPs concentration was 0.54-64.01 ng x L(-1), and the main components were HCHs and DDTs, whose average concentrations were 5.56 ng x L(-1) and 16.57 ng x L(-1), respectively, accounting for about 84.75% of the total. The origins of OCPs in study area were historical residues and the recent discharge of pesticides. The concentrations of all existences accorded with the target values of GB 3838-2002. The concentrations of OCPs in the surface water body of Chaohu Lake were much lower, and the risk was low in general.
authors.affiliation: Anhui Province Key Laboratory of Agricultural Food Safety, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China. zm801212@21cn.com
authors.forename: Ming
authors.initials: M
authors.lastname: Zhang
authors.forename: Ri-Mao
authors.initials: RM
authors.lastname: Hua
authors.forename: Xue-De
authors.initials: XD
authors.lastname: Li
authors.forename: Ting-Ting
authors.initials: TT
authors.lastname: Zhou
authors.forename: Feng
authors.initials: F
authors.lastname: Tang
authors.forename: Hai-Qun
authors.initials: HQ
authors.lastname: Cao
authors.forename: Xiang-Wei
authors.initials: XW
authors.lastname: Wu
authors.forename: Jun
authors.initials: J
authors.lastname: Tang
mesh_terms: D002681:China; D003634:DDT / Q000032:analysis; D005618:Fresh Water / Q000032:analysis*; D006581:Hexachlorobenzene / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical; D006581:Hexachlorobenzene; D003634:DDT