现代地质Issue(3)：523-530,8.
河北省保定市平原区土壤重金属污染及潜在生态危害评价
Assessment of the Heavy Metal Pollution and the Potential Ecological Hazard in Soil of Plain Area of Baoding City of Hebei Province
摘要
Abstract
With the urban soil of plain area of Baoding 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>Cu>Pb>Cr>Ni>As.Most im-portantly,Cr,Pb,Ni,As and most of Hg and Cu are in a clean and safe condition,only to find 0.15%of Ni and 0.40%of Cu in an alert state.However,Cd,Zn are all in the pollution state,especially the pollution of Cd represents the largest polluted area,reaching 0.22%.On the whole,Integrated Pollution Assessment showed the soil environment is good,in which clean,safe,alert,contaminated soil area ratio is 94.39%,5.00%, 0.50%,0.11% respectively;and alert and contaminated soil area accounts for 0.61%.Its formation may be related to industrial production and human activities.In the heavy metal elements,resulting in potential ecologi-cal hazard of heavy metals is mainly Hg,which have reached to moderate potential ecological hazard level,the remaining heavy metals are all mild potential ecological hazard.Considering synthetically the potential ecological hazard of heavy metals,we found that the percentage of small,medium,high and strong ecological hazard is respectively 93.71%,4.71%,1.29%,0.29%.Therefore,the general performance is the small potential ecological hazard.关键词
土壤/重金属污染/潜在生态危害/评价/保定市Key words
soil/heavy metal contamination/potential ecological hazard/assessment/Baoding city分类
资源环境引用本文复制引用
崔邢涛,秦振宇,栾文楼,宋泽峰..河北省保定市平原区土壤重金属污染及潜在生态危害评价[J].现代地质,2014,(3):523-530,8.基金项目
中国地质调查局项目“河北省农业地质调查项目”（200040007-2）。 （）
