Assessment of the Heavy Metal Pollution and the Potential Ecological Hazard in Urban Soil of Shijiazhuang City
详细信息
- 责任者：Cui Xingtao (Institute of Resource and Environmental Engineering ; Shijiazhuang University of Economics ; Shijiazhuang 050031 ; China) ; Luan Wenlou
- 刊名：Geoscience
- 出版年：2011
- 卷期：25(1)
- 关键词：重金属 ; heavy metals ; 土壤污染 ; soil pollution ; 河北 ; Hebei Province
- 页码：p.169-175
- 图表：4 illus., 5 tables, 32 refs.
- 分类号：1800
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
With the urban soil of Shijiazhuang city as a target, this essay evaluates the environmental quality of soil heavy metals and pollution characteristics by adopting the single factor index method and Nemerow comprehensive index method. Besides, the potential ecological hazard index suggested by Hakanson is used to assess the ecological hazard of heavy metal in urban soil. The results show that the elements, according to the pollution degree of heavy metal, are followed by the order of Cd>Zn>Hg>Cr>Ni>Pb>Cu>As. Most importantly, Cu, Pb, As and most of Ni are in a clean and safe condition, only to find 0.45% of Ni in an alert state. Considering synthetically the potential ecological hazard of heavy metals, the authors found that the percentage of small, medium, high and strong ecological hazard is respectively 38.6%, 53.2%, 7.3%, and 0.9%. Therefore, the general performance is the medium potential ecological hazard.