北京师范大学学报（自然科学版）2013，Vol.49Issue(1)：79-84,6.
渭河陕西段河床沉积物重金属污染分析
POLLUTION ANALYSIS OF HEAVY METALS IN SEDIMENTS OF WEIHE RIVER (SHAANXI SECTION)
摘要
Abstract
Content of heavy metals in sediments from six sections of Weihe river in Shaanxi province was determined. A vertical distribution feature of 4 heavy metals in river sediments was demonstrated. Potential ecological risks of heavy metals were estimated by geo-accumulation index, and by potential ecological risks index. Data showed that Cu and Cd were major pollutants in the study area. Cd in Caotan area exceeded background value, average value was >3. 1 times background. For most points in Caotan area, Cd was a moderate pollutant but a greater ecological risk. The rank of pollution degree was summarized as F,C,A,D,E and B, while rank of potential level of risk was F,D,C,E,A and B. Site F had the highest pollution level and imposed the highest ecological risk.关键词
沉积物/重金属/地累积指数法/潜在生态风险指数法/渭河陕西段Key words
heavy metal/ sediment/ index of geo-accumulation/ potential ecological risk assessment/Weihe river in Shannxi province引用本文复制引用
罗琳,宋进喜,王颖..渭河陕西段河床沉积物重金属污染分析[J].北京师范大学学报（自然科学版）,2013,49(1):79-84,6.基金项目
国家自然科学基金资助项目(51079123) （51079123）
教育部留学科研启动基金资助项目(教外司留[2010]1174) （教外司留[2010]1174）
教育部新世纪优秀人才支持计划资助项目(NCET-11-1045) （NCET-11-1045）
