于洋;马俊花;莫罹;孔彦鸿;沈珍瑶;李迎霞;

• 1:北京师范大学环境学院水环境模拟国家重点实验室
• 2:宁夏交通科学研究所
• 3:中国城市规划设计研究院

摘要(Abstract)：

为了探讨密云水库上游流域可能给水库带来的非点源污染,本研究测定了入库河流潮河下游周边土壤中12种类二恶英多氯联苯(DL-PCBs)的含量水平。结果表明,ΣDL-PCBs的总含量水平为0.0039~0.0365 ng·g-1,其中PCB-118,115,77为12种DL-PCBs的主要成分,PCB-81,114,157均低于检出限。草地、林地和果园中ΣDL-PCBs的含量高于玉米地,表明研究区的DL-PCBs主要受大气沉降和河流沉积物的影响,受当地人类活动影响不大。与其他研究相比,采样区域的PCBs含量总体处于偏低水平,毒性当量处于中等水平。而毒性当量因子(TEF)较高的PCB-126与PCB-169,可能会对人类和生物产生危害,应给予足够的重视。

关键词(KeyWords)： 类二恶英多氯联苯;潮河;北京;密云;水源地;毒性当量

Abstract:

Keywords:

基金项目(Foundation): 国家基金委创新研究群体科学基金(51121003);; 国家自然科学基金面上项目(51278054)

作者(Author): 于洋;马俊花;莫罹;孔彦鸿;沈珍瑶;李迎霞;

Email:

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