废弃电容器封存点多氯联苯的含量和分布特征  

Concentration and distribution of PCBs in one storage site of used capacitors

作　　者：陈来国[1] 蔡信德[1] 黄玉妹[1] 许振成[1] 彭晓春[1] 张秀兰[2] 麦碧娴[2] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655 [2]中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广东广州510640

出　　处：《中国环境科学》2008年第9期833-837,共5页China Environmental Science

基　　金：全国土壤现状调查及污染防治项目(1440800011);广东省自然科学基金资助项目(7300845)

摘　　要：利用GC-MS技术研究了广东某废弃电容器封存点多氯联苯（PCBs）的含量和分布特点.结果表明,封存池周边土壤中∑102PCBs的含量为0.27-0.73ng/g;封存池边沿的含量为10.11ng/g;封存池内的含量为1508.49ng/g,远高于池周边和对照点土壤中的含量,但低于国内外某些封存点土壤中的含量..封存池内土壤PCBs的主要单体为PCB28（31）,66,70,37,52,74,56,22,44,60,48（47）,15,20,26,118.封存池内土壤PCBs以4氯为主,其次为3氯和5氯PCBs.Concentrations and distribution characteristics of PCBs in a storage site of used capacitors in Guangdong province were investigated using the GC-MS analysis technique. Concentrations of ∑102PCBs in the surrounding soils ranged from 0.27 to 0.73ng/g, while the concentrations on the edge of and inside the storage area were much higher with a value of 10.1 lng/g and 1508.49ng/g, respectively. Besides, the PCBs concentration inside the storage area was significantly higher than the values of surrourding soils and comparison site, but lower than that of some domestic and overseas storage areas. The main PCB congeners in the storage area were PCB28（31）, 66, 70, 37, 52, 74, 56, 22, 44, 60, 48（47）, 15, 20, 26 and 118, and the major PCB homologue found there was tetra-PCB, followed by tri- and penta-PCB.

关 键 词：多氯联苯 封存点 含量 分布 

分 类 号：X708[环境科学与工程—环境工程]