摘要
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 the surface sediments in the typical ecological region of south Bohai Bay in March 2012,the accumulated degree and the potential ecological risk of heavy metals were analyzed and assessed by using the method of accumulation coefficients and the method of potential ecological indices presented by Hakanson.Results show that,the comprehensive situation of the sediment quality was at medium concentration level and low potential ecological risk level,and Hg Cd are the primary ecological risk factors.The integrative index of heavy metals decreased from north to south,which results from the land-based sources of pollutants from the northern region of Bohai Bay and marine developing activities.
出处
《海洋环境科学》
CAS
CSCD
北大核心
2013年第4期533-537,共5页
Marine Environmental Science
基金
国家海洋局北海分局科技项目<黄骅港5万吨级重载双向航道工程环境影响研究>(2012-Y006)
关键词
渤海湾
表层沉积物
重金属
潜在生态风险
Bohai Bay
surface sediments
heavy metals
potential ecological risk
