摘要
对渭河干流(宝鸡段)表层沉积物中重金属Cu、Zn、Pb含量进行了调查,用潜在生态危害系数法对其污染水平进行了评价,并与松花江(吉林市段)、淮河(江苏段)、长江(下游)、苏州河、珠江(广州段)5条河流表层沉积物中Cu、Zn、Pb的含量做了对比研究。结果表明,3种重金属元素平均含量均超出相应的土壤背景值,出现了一定程度上的富集;生态危害系数均<40,属轻微生态危害。重金属含量水平在国内诸河中处于中间位置。
The Cu, Zn, Pb contents in the sediment surface were investigated on the main stream of the Weihe River （ Baoji section）. The potential ecological risk index was used for evaluating the pollution to compare the levels of Cu, Zn, Pb contents in the sediment surface among the 5 rivers including the Songhua River （Jilin section）, the Huaihe River （Jiangsu section ）, The Yangtze River （downstream）, the Suzhou River and Pearl River （ Guangzhou section） . The results showed that the average levels of 3 heavy metals exceeded the soil background value and the heavy metals concentrated in the sediments. All ecological risk indexes were under 40 to present a negligible ecological risk and at the middle of heavy metal level list in the Chinese rivers.
出处
《环境监测管理与技术》
北大核心
2008年第6期26-29,共4页
The Administration and Technique of Environmental Monitoring
基金
国家自然科学基金资助项目(NSFC40675081)
关键词
渭河(宝鸡段)
沉积物
重金属
评价
Weihe River（ Bao Ji section）
Sediment
Heavy metal
Evaluation
