摘要
根据2006年8月舟山重点排污口-舟山海洋生物工业园区排污口邻近海域表层沉积物的监测资料,采用单因子指数法和Hakanson生态风险指数法对Hg、As、Pb、Cd、Cu、PCB等6种污染要素进行分析和评价,结果表明:该海域沉积物综合污染程度和潜在生态风险性均为低,6种污染要素的综合污染程度由大到小依次为:Cu>Pb>PCB>As>Cd>Hg,潜在生态风险性排列顺序为PCB>Hg>Cd>Cu>Pb>As,PCB是沉积物中主要的潜在污染因子,对R I的贡献率达到了48.8%。
The contents of typical pollutants （PCB, Hg,Cd, Pb and As） in surface sediments in the adjacent sea area near the discharge outlets in Zhoushan were analyzed using the index number techniques of single factor and Hakanson potential ecological risk in- dex techniques. Based on the monitoring data of the surface sediments in Aug. 2006, the results showed that the integrated contamination and potential ecological risk of the typical pollutants were low. The sequence of pollution degree of these metals in surface sediments was Cu 〉 Pb 〉 PCB 〉 As 〉 Cd 〉 Hg, the potential ecological risk was PCB 〉 Hg 〉 Cd 〉 Cu 〉 Pb 〉 As. PCB was the key factor of the potential ecological risk in surface sediments, the contribution of PCB was 48.8%.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2009年第A01期50-52,61,共4页
Marine Environmental Science
关键词
舟山
排污口
邻近海域
沉积物
污染
生态风险
Zhoushan
terrestrial pollution source
adjacent sea area
surface sediments
ecological risk evaluation
