[Distribution and composition of organochlorine pesticides in surface water body of Chaohu Lake].
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.
Zhang
Ming
M
Anhui Province Key Laboratory of Agricultural Food Safety, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China. zm801212@21cn.com
Hua
Ri-Mao
RM
Li
Xue-De
XD
Zhou
Ting-Ting
TT
Tang
Feng
F
Cao
Hai-Qun
HQ
Wu
Xiang-Wei
XW
Tang
Jun
J
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*
D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D014874:Water Pollutants, Chemical; D006581:Hexachlorobenzene; D003634:DDT