摘要
对大南湖12个采样点的表层沉积物重金属(Cd、Hg、As、Cu、Pb、Cr、Zn)进行监测和分析,采用地积累指数法和潜在生态危害指数法对表层沉积物中重金属进行污染评价。地积累指数法结果表明,Cd在多数样点呈现中度污染状态,Hg、As、Cu、Pb呈无—中度污染状态,Cr、Zn呈无污染状态。潜在生态危害指数法结果表明,大南湖表层沉积物重金属污染为轻生态危害。
Based on the data of heavy metals(Cd,Hg,As,Cu,Pb,Cr,Zn) in the surface sediment of 12 sites in Dananhu Lake of Wuhan,two methods are used to assess the pollution degree of heavy metals quantitatively,based on Index of Geoaccumulation and Potential Ecological Risk Index.It shows that Cd pollution degree is moderate;Hg,As,Cu,Pb pollution degree is between zero and moderate;and the pollution degree of Cr and Zn is zero.A slight ecology risk is present.
出处
《桂林理工大学学报》
CAS
北大核心
2010年第3期415-418,共4页
Journal of Guilin University of Technology
基金
广西环境工程与保护评价重点实验室研究基金项目(桂科能0704K037)
广西高校人才小高地建设"环境工程"创新团队资助计划项目(桂教人[2007]71)
关键词
重金属污染评价
地积累指数法
潜在生态危害指数法
大南湖
武汉
assessment on heavy metals pollution
index of geoaccumulation
potential ecological risk index
Dananhu Lake
Wuhan