%0 Journal Article
%T Distribution characteristics of organochlorine pesticides in river surface sedim ents in Song-Liao Watershed.<br>松辽流域河流表层沉积物中有机氯农药的分布特征
%A WANG Hao-zheng
%A HE Meng-chang
%A LIN Chun-ye
%A QUAN Xiang-chun
%A GUO Wei
%A <br>王浩正
%A 何孟常
%A 林春野
%A 全向春
%A 郭伟
%J 应用生态学报
%D 2007
%I 
%X With gas chromatography-electron capture detector (GC-ECD), this paper analyzed 13 kinds of organochlorinae pesticides (OCP) in surface sediments collected from 22 sites of Song-Liao water system. The results showed that the total concentration of OCP varied from 3.06 to 23.24 ng x g(-1) in Daliao River system and from 4.26 to 18.45 ng x g(-1) in Songhuajiang River system. The most dominant OCP pollutant in the sediments in Song-Liao Watershed was HCH, but there existed different pollution tendency in the two subsystems. In Songhuajiang River, there were also relatively high concentrations of DDT. High concentration gamma-HCH was observed among the isomers of HCH in the whole watershed, which exceeded the initial affecting concentration and could potentially do toxic effect on the water creatures.
%K distribution characteristics
%K organochlorinae pesticides (OCP)
%K surface sediments
%K Song-Liao Watershed<br>分布特征
%K 有机氯农药
%K 表层沉积物
%K 松辽流域
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=CF26FCBE442D1AC0&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=DF92D298D3FF1E6E&sid=777A6C995272142B&eid=599BE0AAD31F648B&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=21