南京林业大学学报（自然科学版）Issue(6)：65-71,7.DOI:10.3969/j.issn.1000-2006.2014.06.013
南京市不同功能区路域表土重金属污染评价及相关性分析
Assessment and correlation analysis on heavy metals contamination in urban road topsoils of different city zones in Nanjing
摘要
Abstract
In order to investigate the heavy metal contamination of Nanjing′s roadside topsoil, 1 500 monitoring points were placed in five function areas of Nanjing, and the contents of heavy metal ( Cr, Cd, Ni, Pb, Zn) were measured for evaluation and correlation analysis. The results indicated the concentrations of heavy metals varied within the five urban function areas ( UFAs ) . According to the environmental background of Nanjing soil, the single factor index was employed to evaluate synthetically the pollution level among UFAs. All UFAs were heavily polluted by Cd and slightly polluted by Cr and Zn. Scenic area ( SA) sites had no Zn pollution and all UFAs had no Ni pollution. Transportation junction area ( TJA) , industry area ( IA) and education and residential area ( ERA) were polluted slightly by Pb while business area ( BA) and scenic area ( SA) contained no Pb pollution. The descending order of the Nemerow pollution in⁃dex and potential ecological risk index in UFAs are TJA>IA>ERA>BA>SA. The integrated pollution of the UFAs were all severe, while the ecological risk of Cr, Ni, Pb, and Zn were all slight. The degree of Cd was extremely strong. The degree of correlation analysis from 5 kinds of heavy metals varied significantly among UFAs, suggesting that the sources of heavy metal pollution are different.关键词
路域土壤/重金属污染/城市功能区/南京Key words
roadside soil/heavy metal pollution/urban function areas/Nanjing city分类
资源环境引用本文复制引用
徐铭焓,林涛,余爱华,周舒宇,佟蕾..南京市不同功能区路域表土重金属污染评价及相关性分析[J].南京林业大学学报（自然科学版）,2014,(6):65-71,7.基金项目
“十二五”农村领域国家科技支撑计划（2011BAD38B0103）；国家级大学生创新创业训练计划 （）
