根据2012年3月对渤海湾南部典型生态区表层沉积物的监测数据,采用富集系数法和Hakanson潜在生态危害指数法对其富集程度和潜在生态危害程度进行了分析和评价。结果显示:渤海湾南部典型生态区表层沉积物重金属总体处于中等富集程度和低潜在生态风险,Hg和Cd是该海域的主要生态风险因子。重金属综合污染指数平面分布呈现北高南低的趋势,来自渤海湾北部的陆源性输入以及海洋开发活动均是造成这种分布趋势的影响因素。 According to the monitoring data of surface sediments in the typical ecological zone in southern Bohai Bay in March 2012, the enrichment coefficient and Hakanson potential ecological risk index were used to analyze the degree of enrichment and the potential ecological risk. The results showed that the heavy metals in the surface sediments of the typical ecological areas in the southern Bohai Bay are generally at a moderate level and low in potential ecological risk. Hg and Cd are the major ecological risk factors in this area. The distribution of heavy metal pollution index showed a trend of low north and high south, and the terrigenous input from northern Bohai Bay and marine development activities were the influencing factors of this distribution trend.