• 责任者：Guan Houchun (School of Geographic and Oceanographic Sciences ; Nanjing University ; Nanjing 210093 ; China) ; Li Yunhuai
• 刊名：Geology in China
• 出版年：2013
• 卷期：40(6)
• 关键词：土壤污染 ; soil pollution ; 重金属 ; heavy metals ; 安徽 ; Anhui Province
• 页码：p.1949-1958
• 图表：3 illus., 10 tables, 35 refs.
• 分类号：1800
• issnNo：ISSN1000-3657
• isbnNo：CN11-1167/P

     In the urban and suburb areas of Huangshn City （Tunxi District, Huizhou District and the Economic and Technological Development Zone）, heavy metal pollution of the topsoil and its potential ecological risk were separately analyzed and evaluated by using the index of geoaccumulation and the potential ecological risk index. With SPSS software, factor analysis of heavy metal content data in topsoil was conducted. It is indicated that heavy metal pollution of the topsoils in the study area is characterized by 0-2 degree, and the relative degree of pollution is in the order of Hg 〉Cd 〉Cu 〉As 〉Zn 〉Cr 〉Pb 〉Ni. Likewise, the potential ecological risk is characterized by the order of Hg〉Cd〉As〉Cu〉Pb〉Ni〉Cr〉Zn. The average value of the synthetic potential ecological risk index is 211.80, indicating that the topsoil is in a middle potential ecological risk, with the predominant and the second risk factor being separately Hg and Cd. Comparatively pollution of these eight elements in soils topsoil and its potential ecological risk within th speaking, heavy metal e areas primarily result from common life and production in urban and rural areas, such as fertilization, and imgation with sewage, factory pollution, local flowage of life garbage and coal combustion.