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对典型老工业基地进行周边土壤重金属污染情况研究，能够为老工业基地生态修复模式的探索打下坚实基础。采集徐州市某电厂周边21个土壤样本，使用ICP-MS对Cr、Cd、Cu、Ni、Pb 5种重金属含量进行测量。结果表明，老工业基地周边土壤Cd、Cu、Pb有一定积累，部分点位Cd和Pb有超标现象。利用相关性分析和PMF模型对土壤重金属进行来源解析，发现土壤重金属可能受工业源、交通源、大气沉降源和自然源影响。采用单因子污染指数法、内梅罗污染指数法、潜在生态风险指数法对土壤重金属进行污染风险评价，表明Cd污染程度较为严重，生态风险水平较高。研究结论证明老工业基地已对周边环境产生不利影响，需进行污染防治。
Abstract：In 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 the exploration 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. Pollution risk evaluation of soil heavy metals was carried out using single-factor pollution index method, Nemero pollution index method and potential ecological risk index method, and the results showed that Cd pollution was more serious and 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.
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基本信息:
DOI：10.16152/j.cnki.xdxbzr.2025-06-012
中图分类号:X825
引用信息:
[1]杨德军,李馨兆,王珉玥,等.徐州市典型老工业基地土壤重金属来源解析及风险评价[J].西北大学学报(自然科学版),2025,55(06):1340-1351.DOI:10.16152/j.cnki.xdxbzr.2025-06-012.
基金信息:
国家自然科学基金(U2003103); 2025年度徐州市前沿技术研发计划(KC25126)