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利用金州湾海域2013年的沉积物调查数据,对金州湾沉积物中主要污染物含量的分布特征进行分析,并结合2009年和2011年的调查数据分析了2009~2013年主要污染物含量的变化趋势,在此基础上采用标准指数法和潜在生态风险指数法对沉积物污染程度以及潜在生态风险进行评价。结果表明,金州湾表层沉积物典型污染物含量都呈现出南岸高于北岸,湾底高于湾口的特点。2013年Cu、Pb、Cd、Zn、As、有机碳以及硫化物的含量均明显高于2009年和2011年。重金属中Cd、Hg潜在生态风险等级为中等至较高,Cu、Pb、Zn以及As潜在生态风险等级较低。
Based on the sediment survey data of Jinzhou Bay in 2013, the distribution characteristics of major pollutants in the sediments in Jinzhou Bay were analyzed. Based on the survey data in 2009 and 2011, the main pollutants Based on which the standard pollution index and potential ecological risk index were used to evaluate the degree of sediment pollution and potential ecological risk. The results show that the typical pollutants of surface sediments in Jinzhou Bay show the characteristics that the south bank is higher than the north bank and the bay bottom is higher than the bay mouth. The contents of Cu, Pb, Cd, Zn, As, organic carbon and sulfide in 2013 were significantly higher than those in 2009 and 2011. The potential ecological risk levels of Cd and Hg in heavy metals are medium to high, while the potential ecological risk levels of Cu, Pb, Zn and As are lower.