Assessment for the Heavy Metal Pollution in the Sediments of
详细信息
- 责任者：Liu Junting (School of Water Resources and Environment ; China University of Geosciences ; Beijing 100083 ; China) ; Pan Hongjie
- 刊名：Geology and Resources
- 出版年：2010
- 卷期：19(4)
- 关键词：环境污染 ; environmental pollution ; 重金属 ; heavy metals ; 内蒙古 ; Inner Mongolia
- 页码：p.325-329
- 图表：2 illus., 4 tables, 23 refs.
- 分类号：1800
- issnNo：ISSN1671-1947
- isbnNo：CN21-1458/P
摘要
Based on survey data of the sediments (0~20 cm) collected from Wuliangshu Lake, the risk of heavy metal pollution is assessed by ecological risk index method. According to the national standard of ocean sediment quality (first level), threshold effective level and national standard of soil quality (first level), the lake presents a combined pollution,mainly with pollutants of Cu, Cd, Ni and Zn. There are a remarkable correlation among the total contents of Pb, Cd, As, Cu, Cr, Hg and Zn, suggesting the same origin of pollutants.The ecological risk index method shows that most part of the lake is of slight pollution risk. The extreme pollution areas are distributed only near the mouth of three drainage-irrigation channels. The other areas are heavily polluted.