岩矿测试2016，Vol.35Issue(4)：433-439,7.DOI:10.15898/j.cnki.11-2131/td.2016.04.016
包头市典型工业区表层土壤中重金属污染状况及其潜在生态风险研究
Heavy Metal Pollution in Topsoil from the Baotou Industry Area and Its Potential Ecological Risk Evaluation
摘要
Abstract
In order to understand the effect of industrial pollution in the Baotou industrial areas on heavy metal content in soils,correlation analysis was used to study the source of Cu,Zn,Pb,Cr,Cd,Mn,and Ni.The heavy metal pollution in the soils was assessed using the methods of Nemerow index and Hakanson ’s ecological risk index.The results show that the contents of these seven heavy metals are higher than the background values of soils in Inner Mongolia.The exceeding ratios of Cd,Mn,Ni contents in soil are 100%,and Cu,Pb,Zn,Cr were 97%,93%,93%,53%,respectively.The pollution degree of single elements showed the order of Cd>Pb>Cu>Ni >Zn >Mn >Cr.Pb and Cd are strong pollution elements,whereas Cu,Zn,Ni are moderate pollution elements,Cr,Mn are minor pollution elements.The main sources of heavy metals (Cu,Zn,Cr,Mn,Ni)in soils of the industrial district were industrial pollutant discharge and transportation.Excluding the two sources mentioned previously,Pb and Cd are mainly attributed to the emissions of coal-fired flue gas.The potential ecological risk has the order of Cd>Pb>Cu>Ni >Cr>Zn>Mn.Among them,Cd is the most harmful heavy metal pollutant and should be addressed.关键词
典型工业区/重金属/污染评价/来源分析/包头市Key words
typical industrial area/heavy metals/pollution evaluation/source analysis/Baotou city分类
资源环境引用本文复制引用
孙鹏,李艳伟,张连科,李玉梅,王维大,余维佳..包头市典型工业区表层土壤中重金属污染状况及其潜在生态风险研究[J].岩矿测试,2016,35(4):433-439,7.基金项目
内蒙古自治区自然科学基金资助项目(2015MS0408) （2015MS0408）
