大连湾沉积物中的有机氯农药和多氯联苯  

Organchlorine pesticides and PCBs in Dalian Bay

作　　者：刘现明[1] 徐学仁[1] 张笑天[1] 张国光[1] 李红[1] 周传光[1] 

机构地区：[1]国家海洋环境监测中心,辽宁大连116023

出　　处：《海洋环境科学》2001年第4期40-44,共5页Marine Environmental Science

摘　　要：对大连湾附近海域的沉积物中有机氯农药 (OCPs)和多氯联苯 (PCBs)进行了定性和定量分析 ,并探讨在沉积物中的分布特征。沉积物中BHCs的浓度范围为 0 .0 2 7× 10 -9～ 5 .782× 10 -9,平均值为 0 .2 46× 10 -9;沉积物中DDTs的浓度范围为 0 .72 7× 10 -9～ 5 .72 3× 10 -9,平均值为 2 .2 0 8× 10 -9;沉积物中PCBs的浓度范围为 0 .0 40× 10 -9～ 3.2 30× 10 -9,平均值为 2 .141× 10 -9。结果表明 ,该湾沉积物未受到OCPs、PCBs的污染 ,其浓度与 1996年调查数据相比呈降低趋势。The paper presents the study of organchlorine pesticides(OCPs) and PCBs in surface sediment samples collected from Dalian Bay and nearby sea area. Content of organchlorine pesticides and PCBs were quantitatively measured and distributing characteristics of these compounds in the area were discussed. The range of BHCs content in sediment was 0.027×10 -9 ～5.782×10 -9 , the mean content was 0.246×10 -9 ; and the range of DDTs content in sediment was 0.727×10 -9 ～5.723×10 -9 , the mean content was 2.208×10 -9 ; and the range of PCBs content in sediment was 0.040×10 -9 ～3.230×10 -9 , the mean content was 2.141×10 -9 . The results showed that the sediments in the bay were not been contaminated, and their content were been decreased gradually by comparing with investigating data in 1996.

关 键 词：大连湾 表层沉积物 有机氯农药 多氯联苯 海洋监测 

分 类 号：X132[环境科学与工程—环境科学] X834