摘要
本文研究了大连湾、锦州湾表层沉积物中ＢＨＣ、ＤＤＴ和ＰＣＢ的分布特征。结果表明，大连湾沿岸入海排污口附近ＢＨＣ、ＤＤＴ和ＰＣＢ含量较高，其来源主要是沿岸工农业污水。锦州湾五里河口附近ＢＨＣ、ＤＤＴ含量较高，主要是锦州地区农业和卫生事业用药随河流流入所致。３种污染物在两湾的分布特征是：总ＢＨＣ和总ＤＤＴ锦州湾高于大连湾；ＰＣＢ大连湾高于锦州湾。其含量均落在世界海洋近岸表层沉积物含量范围内，属中度污染。
The concentrations of the organic chlorine pesticide and PCB in the surface sediments in Dalian Bay and Jinzhou Bay were studied.The results were as fallow:BHC,DDT and PCB contents were higher in the surface sediments in Dalian Bay.The BHC,DDT and PCB pollution were mainly affected by the industrialagriculture drainage nearby the mouth.BHC,DDT contents were higher by Wuli Estuary in Jinzhou Bay.The contents of BHC,DDT in Jinzhou Bay were higher than Dalian Bay.The contents of PCB in Dalian Bay were higher than Jinzhou Bay.The contents were within the range in the same area of the world coast,called the middle dergree of the contaimination.
出处
《海洋环境科学》
CAS
CSCD
北大核心
1998年第2期73-76,共4页
Marine Environmental Science
关键词
表层沉积物
有机氯
农药
多氯联苯
海洋污染
surface sediment
organochlorine pesticide
PCB
distribution characteristics
