%0 Journal Article
%T Distribution of Organochlorine Pesticides in Surface Sediments from the Middle and Lower Reaches of the Yellow River<br>黄河中下游表层沉积物中有机氯农药含量及分布
%A SUN Jian-hui
%A WANG Guo-liang
%A ZHANG Gan
%A LI Jun
%A CHAI Yan
%A WANG Jing-zhi
%A DUAN Yan-pei
%A <br>孙剑辉
%A 王国良
%A 张干
%A 李军
%A 柴艳
%A 王景芝
%A 段延佩
%J 环境科学
%D 2007
%I 
%X Organochlorine pesticides (OCPs) in twenty-three sediment samples from the middle and lower reaches of the Yellow River were analyzed by GC/ECD. The OCPs detected were comprised mainly of HCHs, DDTs, hexachlorobenzene, chlordane, etc. The range of total OCPs concentration was 0.35~22.92ng/g. The concentrations of HCHs and DDTs were much higher than other compounds and varied from 0.05~5.03ng/g and 0.09~12.88ng/g, respectively. Contamination level of OCPs in sediment increased from middle to lower reaches along the Yellow River. The distribution of total OCPs in main tributaries follows the sequence: Xinmang River > Jindi River >Si River> Yiluo River >Qin River. The Yellow River has a much higher concentration of HCHs than Hai River, the Pearl River, the Yangtze River and Huangpu River, and almost the same concentration of DDTs as other rivers except Hai River. The contamination of OCPs in the sediments from the middle and lower reaches of the Yellow River derived mainly from industrial contamination in riverbasim, the inflow of the main tributaries and the residues of organochlorine pesticides widely used for a long term and the aged and weathered agricultural soils.
%K organochlorine pesticides
%K sediments
%K Yellow River<br>有机氯农药
%K 沉积物
%K 黄河
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=BC85E858628321E1590077CD9B8A3A32&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=B31275AF3241DB2D&sid=81ED2BA99A995222&eid=530D9656D932F420&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=21