%0 Journal Article
%T Levels, Distribution and Possible Sources of Polychlorinated Biphenyls in River Sediments from an Electronic Waste Recycling Area<br>电子废物拆解区河流沉积物中多氯联苯的污染水平、分布及来源
%A WANG Xue-tong
%A LI Yuan-cheng
%A MIAO Yi
%A ZHANG Yuan
%A SUN Yang-zhao
%A WU Ming-hong
%A SHENG Guo-ying
%A FU Jia-mo
%A <br>王学彤
%A 李元成
%A 缪绎
%A 张媛
%A 孙阳昭
%A 吴明红
%A 盛国英
%A 傅家谟
%J 环境科学
%D 2012
%I 
%X The concentrations of 144 polychlorinated biphenyls(PCBs) in the river sediments from Luqiao were analyzed by GC-μECD.The objectives of this study were to understand the contents,spatial distribution and possible sources of PCBs.The PCBs concentrations detected in the river sediments were in the range of 1.66 to 5930 ng·g-1,with a mean of 763 ng·g-1.Tri-CBs,tetra-CBs and penta-CBs were the primary PCB congeners in all samples,accounting for 2.63%-57.6%,10.4%-54.6% and 7.82%-46.1%,respectively.Octa-CBs and deca-CBs were the minor PCB congeners in all samples,with the percentages of 0-8.57% and 0-11.0%,respectively.The hierarchical cluster analysis(HCA) showed that 22 samples were mainly polluted by Ar1248,9 samples were polluted by Ar1254,and 6 samples were contaminated by Ar1016,Ar1232 and Ar1242.The PCBs concentrations found in the present study were at an upper-middle level compared with those in other studies in the world.The PCBs pollution in the present area had a high ecological risk.
%K electronic waste
%K sediments
%K polychlorinated biphenyls (PCBs)
%K distribution
%K hierarchical cluster analysis (HCA)
%K source<br>电子废物
%K 沉积物
%K 多氯联苯
%K 分布
%K 聚类分析
%K 来源
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=470342632029DB6AD28BBDB97EABA027&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=DF92D298D3FF1E6E&sid=EF719C6D1AC7F445&eid=50B9C3FF1B4615D6&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=21