环境与职业医学2017，Vol.34Issue(2)：129-132,4.DOI:10.13213/j.cnki.jeom.2017.16534
贵州马岭工业区土壤重金属污染现状及生态风险评价
Pollution status and potential ecological risk assessment of soil heavy metals in Maling industrial area in Guizhou Province
摘要
Abstract
[Objective] To evaluate soil heavy metal pollution levels in Maling industrial area in Guizhou,and to provide scientific evidence for making corresponding prevention and control strategies.[Methods] By equidistant grid arrangement of sampling points,30 surface soil samples were collected in a 10-km2 area stretching about 4 km in north-south direction and 2.5 km in east-west direction in Maling industrial area.The pollution indices and potential ecological risk indices of copper (Cu),zinc (Zn),lead (Pb),cadmium (Cd),arsenic (As),and mercury (Hg) were calculated.[Results] The single pollutant indices of Cu,Zn,Pb,Cd,As,and Hg in the soil samples collected in Maling industrial area were 0.63,0.86,0.84,1.43,0.62,and 2.23,respectively.The soil comprehensive pollution indices ranged from 0.27 to 5.83,with an average of 1.73,which indicated lightly polluted soil.The heavy metals with their potential ecological risks from high to low were Hg＞ Cd＞As＞Pb＞Cu＞Zn,and Hg and Cd were the main contribution factors to the ecological risk.[Conclusion] The soil is lightly polluted in general.However,a severe ecological risk of Hg is identified,which should be paid enough attention to.关键词
马岭工业区/土壤/重金属/污染/潜在生态风险Key words
Maling industrial area/soil/heavy metal/pollution/potential ecological risk分类
医药卫生引用本文复制引用
朱守立,詹孝慈,樊启明,张垠..贵州马岭工业区土壤重金属污染现状及生态风险评价[J].环境与职业医学,2017,34(2):129-132,4.基金项目
黔西南州科技计划课题(编号:2014-31) （编号:2014-31）
