摘要
通过采样分析重庆秀山锰矿区土壤中的Mn、Pb、Zn、Cu、Cr、Cd、Ni、Co、As等9种重金属元素含量,使用单因子污染指数法、综合污染指数法、地积累指数法、潜在生态危害指数法等方法,对秀山锰矿区土壤重金属污染状况及其潜在风险程度进行了评价。结果表明,秀山锰矿区域范围内的土壤中Cr、As等重金属元素含量偏高,同时受到金属Mn的严重污染;尾矿库下游土壤的生态风险程度为中等,其余均为轻微的生态风险等级。
Through sampling and analysis, the content of nine kinds of heavy metals in soil of Chongqing Xiushan manganese mine-zone was investigated, namely Mn, Pb, Zn, Cu, Cr, Cd, Ni, Co and As. Current situation of heavy metal pollution to the soil of Xiushan manganese mine-zone and the degree of its potential risk were evaluated, using methods of single factor pol- lution index, comprehensive pollution index, the geoaccumulation index, as well as potential ecological risk index. Results showed that soil of Xiushan manganese mine-zone was generally polluted by Cr, As, especially by Mn in different levels. Soil ecological risk degree of tailings downstream was medium, and the rest areas been slight level.
出处
《地球与环境》
CAS
CSCD
北大核心
2014年第5期646-651,共6页
Earth and Environment
基金
教育部2009人文社会科学研究项目(09YJAZH108)
关键词
锰矿区
土壤污染
重金属
重庆秀山
manganese mine-zoner soil pollution
heavy metal
Chongqing Xiushan
