| 黄婷,张恒博,刘一鸣,李斌.安阳某煤矿周边耕地土壤重金属污染评价及溯源[J].矿产勘查,2026,17(6):1070-1079 |
| 安阳某煤矿周边耕地土壤重金属污染评价及溯源 |
| Evaluation and source tracing of heavy metal pollution in agricultural soil around a coal mine in Anyang |
| 投稿时间：2025-01-22 |
| DOI：10.20008/j.kckc.202606012 |
| 中文关键词: 耕地土壤 重金属污染源 煤矿区 安阳 河南省 |
| 英文关键词: cultivated soil source of heavy metal pollution coal mine area Anyang Henan Province |
| 基金项目:本文受“太行山东麓红旗渠片区历史遗留废弃矿山生态修复示范工程”财资环〔2024〕61号资助。 |
| 作者 | 单位 | | 黄婷 | 河南省第一地质大队有限公司,河南郑州450000
河南省有色金属综合勘查工程技术研究中心,河南 郑州 450000
河南省自然资源科技创新中心地质遗迹与地质文化研究,河南郑州450000 | | 张恒博 | 河南省第一地质大队有限公司,河南郑州450000
河南省有色金属综合勘查工程技术研究中心,河南 郑州 450000
河南省自然资源科技创新中心地质遗迹与地质文化研究,河南郑州450000 | | 刘一鸣 | 中化地质河南局集团有限公司,河南郑州 450000 | | 李斌 | 河南省第一地质大队有限公司,河南郑州450000
河南省有色金属综合勘查工程技术研究中心,河南 郑州 450000
河南省自然资源科技创新中心地质遗迹与地质文化研究,河南郑州450000 |
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| 中文摘要: |
| 为了探究安阳市主焦煤矿周边耕地土壤重金属污染状况及其来源,本文分析测定 8种重金属含量，采用内梅罗污染指数法、潜在生态风险指数法和地累积污染指数法进行重金属污染综合评价；基于相关性分析并采用绝对主成分-多元线性回归模型(APCS-MLR)识别污染源。结果显示:Hg、Cu、Ni、Cd、Zn、Cr元素含量均高于河南省土壤背景值，富集程度最大元素为 Hg，Cd次之；Cd综合污染等级为Ⅱ，其余 7个重金属元素的综合污染等级为Ⅰ；Hg单因子潜在生态风险指数均值最高，Cd次之，但 Cd显示潜在生态风险指数最大值；研究区土壤重金属污染来源主要为煤矸山堆存、自然源、农业活动和化石燃料燃烧的复合源以及工业和施肥农业活动复合源。结论认为，研究区主要潜在生态风险因子 Cd、Hg与农业活动和化石燃料燃烧的复合源有关，需重视区域化石燃料燃烧管控和燃烧技术进步，提高传统农业活动中化肥、农药的使用技术水平，以降低重金属污染风险。 |
| 英文摘要: |
| In order to investigate the pollution status and sources of heavy metals in the farmland soil around the main coking coal mine in Anyang. The contents of 8 kinds of heavy metals were determined, and the comprehen-sive evaluation of heavy metal pollution was carried out by using the method of Nemerow pollution index, potentialecological risk index and geochemical accumulation index. Based on the correlation analysis and using the absoluteprincipal component-multiple linear regression model (APCS-MLR), the pollution sources were identified. The re-sults showed that the contents of Hg, Cu, Ni, Cd, Zn, Cr elements were higher than the soil background values ofHenan Province, with the highest enrichment degree of Hg, and secondary enrichment degree of Cd. The compre-hensive pollution level of Cd was II, and the other heavy metals were grade I. The Hg was of the highest average po-tential ecological risk index, followed by Cd, and the Cd had the maximum value of potential ecological risk indexes.The sources of soil heavy metal pollution in the study area are mainly a composite source of coal gangue pile stor-age, natural source, agricultural activities and fossil fuel combustion, and a composite source of industrial and fertil-ized agricultural activities. The conclusion is that the main potential ecological risk factors Cd and Hg in the studyarea are related to the composite sources of agricultural activities and fossil fuel combustion. It is necessary to payattention to regional fossil fuel combustion control and technological progress, improve the technical level of fertil-izer and pesticide use in traditional agricultural activities, and reduce the risk of heavy metal pollution. |
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