[巢湖表层水体中有机氯农药的分布与组成]
[Distribution and composition of organochlorine pesticides in surface water body of Chaohu Lake].
作者信息
Zhang Ming, Hua Ri-Mao, Li Xue-De, Zhou Ting-Ting, Tang Feng, Cao Hai-Qun, Wu Xiang-Wei, Tang Jun
机构信息
Anhui Province Key Laboratory of Agricultural Food Safety, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China.
出版信息
Ying Yong Sheng Tai Xue Bao. 2010 Jan;21(1):209-14.
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.
采用固相萃取-气相色谱/电子捕获检测器法，研究了巢湖表层水体中有机氯农药（OCPs）的分布及组成。在研究区域的13个采样点，共检测出包括六氯环己烷（HCHs）、滴滴涕（DDTs）、β-硫丹、艾氏剂、六氯苯和七氯在内的16种有机氯农药。有机氯农药总浓度为0.54~64.01 ng·L-1，主要成分为六氯环己烷和滴滴涕，其平均浓度分别为5.56 ng·L-1和16.57 ng·L-1，约占总量的84.75%。研究区域有机氯农药的来源为历史残留和近期农药排放。各种形态的浓度均符合GB 3838—2002的指标值。巢湖表层水体中有机氯农药浓度较低，总体风险较小。
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