摘要
为分析不同土壤重金属污染评价方法的适用性,以南京市不同功能区表层土壤为研究对象,通过PXRF法测定重金属Cr、As、Ni、Pb、Zn、Cu在不同功能区土壤中的含量。利用单项污染指数法、地质累积指数法、内梅罗综合指数法、污染负荷指数法和潜在生态危害指数法对其污染水平评估。结果表明:单项污染指数法和地质累积指数法的评价结论完全一致,其污染程度为Cr>Pb>Zn>Cu>Ni>As。污染负荷综合指数法与潜在生态危害指数法的评价结果基本一致,由大到小顺序为:工业区、休闲区、交通繁忙区、农田区。内梅罗综合指数法与潜在生态危害指数法对各个功能区综合评价结果也基本一致,分别为轻微污染和存在轻度生态风险。
In order to analyze the applicability of different soil heavy metal pollution assessment methods, the surface soils of different functional areas in Nanjing were used as research objects. The contents of heavy metals Cr, As, Ni, Pb, Zn and Cu in different functional areas were determined by PXRF method. The pollution level was evaluated by the single pollution index method, the geo-accumulation index method, the Nemerow comprehensive index method, the pollution load index method and the potential ecological risk index method. The results show that the evaluation results of the single pollution index method and the geo-accumulation index method were completely consistent, and the pollution degree was Cr>Pb>Zn>Cu>Ni>As. The pollution load comprehensive index method and the potential ecological risk index method were basically consistent, and are industrial area > leisure area > heavy traffic area > farmland area. The Nemerow comprehensive index method and the potential ecological risk index method were also basically consistent with the results of a comprehensive evaluation of each functional area, which were slightly polluted and had slight ecological risks.
作者
陈泽华
焦思
余爱华
冯滟媚
汤若禹
CHEN Zehua;JIAO Si;YU Aihua;FENG Yanmei;TANG Ruoyu(College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China)
出处
《森林工程》
2020年第3期28-36,共9页
Forest Engineering
基金
“十二五”农村领域国家科技计划课题(2015BAD07B0103)
南京林业大学大学生实践创新训练计划项目(2019NFUSPITP0485)。
关键词
土壤重金属
污染
评价方法
Soil heavy metal
pollute
evaluation methodology
