徐州市典型老工业基地土壤重金属来源解析及风险评价

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中图分类号：X53 DOI：10.16152/j. cnki. xdxbzr. 2025-06-012

Source analysis and risk evaluation of heavy metals in soils of typical old industrial bases in Xuzhou City YANG Dejun’，LI Xinzhao’，WANG Minyue’，HE Zhengxiang' ， GUO Yuanhui¹，BEI Shengnan’，YANG Yong'，JIN Luyang1， QIU Yunpeng²，HE Huan³， CAO Wenping4.5

（1.School of Environment and Spatial Informatics，China Universityof Mining and Technology，Xuzhou 2116，China; 2. College of Agro-Grassland Sciences，Nanjing Agricultural University，Nanjing 210o95， China; 3.School of Chemical Enginering，China University of Mining and Technology，Xuzhou 221116，China; 4. Jiangsu LYG Environmental Technology Co.，Ltd.，Xuzhou 221003，China; 5.School of Environmental Engineering，Xuzhou University of Technology， Xuzhou 221018，China）

AbstractIn this study，a typical old industrial base was selected for the investigation of heavy metal pollution in the surrounding soil to lay a solid foundation for theexploration of ecological restoration model of old industrial bases.In this study，21 soil samples around a power plant in Xuzhou City were collected，and the contents of five heavy metals，Cr，Cd，Cu，Ni and Pb ，were measured by ICP-MS. The results showed that Cd，Cu and Pb had accumulated in the soil around the old industrial base，and Cd and Pb exceeded the standard at some points.The correlation analysis and PMF model were used to analyze the sources of soil heavy metals，and the results showed that the soil heavy metals might be influenced by industrial sources，transportation sources，atmospheric deposition sources and natural sources.Polution risk evaluation of soil heavy metals was carried out using single-factor polution index method，Nemero polution index method and potential ecological risk index method，and the results showed that Cd polution was more seriousand the ecological risk level was higher.This proves that the old industrial base has adversely affected the surrounding environment and requires pollution prevention and control.

Keywordsold industrial base;heavy metals；PMF; pollution evaluation

老工业基地作为我国工业化进程中的重要组成部分，对我国经济建设作出了不可磨灭的贡献。（剩余15900字）