摘要
分析上海世博园区水体底泥中Hg、Cu、Zn、Cd、Pb、Cr、As、Se等重金属(类金属)含量,结果表明,Hg为(0.35±0.17)mg/kg,Cu为(65.86±11.33)mg/kg,Zn为(190.9±28.9)mg/kg,Cd为(0.3585±0.0611)mg/kg,Pb为(32.50±11.04)mg/kg,Cr为(180.7±68.5)mg/kg,As为(10.8±5.5)mg/kg,Se<0.02 mg/kg。运用地累积指数Igeo进行评价,结果表明Cr和Zn有轻度污染。同时运用潜在生态危害指数R I进行评价,结果为中等生态风险,其中Hg为强生态风险。上海世博园区水体底泥受到Hg、Cr、Zn等重金属污染,应引起高度重视。
The pollution of heavy metal in sediments of Shanghai Expo Area was studied. Mean concentration of Hg, Cu, Zn, Cd, Pb, Cr, As, Se are （0.35±0.17） mg/kg, （65.86± 11.33） mg/kg, （190.9 ±28.9） mg/kg, （0.3585±0.0611 ） mg/kg, （32.50 ± 11.04） mg/kg, （ 180.7 ±68.5） mg/kg, （0. 108 ±0.055） mg/kg , 〈 0. 02 mg/kg. The Indexes of Geo-accumulation and Potential Ecological Risk Indexes were calculated. The result of former is that the low-grade pollution of Cr and Zn in the sediments happened. The results of latter indicate that the medium ecological risk is in existence and the ecological risk of Hg is strong. Therefore the sediments in Expo Park area are polluted by heavy metal such as Hg, Cr and Zn. Great importance must be attached to it.
出处
《上海水产大学学报》
CSCD
北大核心
2008年第6期695-699,共5页
Journal of Shanghai Fisheries University
基金
国家科委世博专项(2005ba908b23)
上海市科委项目(05dz05823)
上海市重点学科建设项目(Y1101)
关键词
世博园
底泥
重金属
地累积指数
潜在生态危害指数
Expo park
sediments
heavy metal
index of geo-accumulation
potential ecological risk index
