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首页> 外文期刊>Fresenius environmental bulletin >CONTENTS AND POLLUTION CHARACTERISTICS OF HEAVY METALS IN SOIL FROM COAL MINING AREA: A CASE STUDY IN LINHUAN MINING DISTRICT, NORTHERN ANHUI PROVINCE
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CONTENTS AND POLLUTION CHARACTERISTICS OF HEAVY METALS IN SOIL FROM COAL MINING AREA: A CASE STUDY IN LINHUAN MINING DISTRICT, NORTHERN ANHUI PROVINCE

机译：煤矿区土壤中重金属的含量和污染特征 - 以安徽北部临桓矿区为例

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摘要

To evaluate the quality and identify the priority pollutants of heavy metals (HMs) in soil from Linhuan mining district, northern Anhui Province, a total of 14 representative surface soil samples were collected, and eight HMs (Fe, Mn, Cd, Cr, Pb, Ni, Zn and Cu) were determined. Nemerow synthetic pollution index and Hakanson potential ecological risk index were performed to assess the pollution statues of HMs. Furthermore, multivariate statistical analysis (e.g., Pearson correlation, cluster analysis, and principal components analysis) were applied to examine the possible sources of HMs. Results showed that, with the exclusion of Cd, the concentrations of the other seven HMs did not exceed the secondary standard values of National Environment Quality Standard for Soil. The values of single pollution index and Nemerow synthetic index both indicated that HMs pollution level was Cd>Ni>Zn, Cu>Cr>Pb, and Cd, Ni and P~n were at clean to alarm limit level. However, the values of ecological risk index further revealed that Cd was at moderate to considerable level, while the other HMs and synthetic index belonged to low level. Multivariate statistical analysis suggested that Cu and Mn were mainly originated from coal mining activities, while the other HMs was affected by other anthropogenic sources (e.g., agricultural, traffic and industrial activities). These results will be significant for understanding the pollution level of HMs in the soil from Linhuan mining district, as well as for the local environmental protection and risk management.
机译：为了评估北安北部临桓矿区土壤中重金属（HMS）的优先级污染物，收集了14种代表性地表土样品，八个HMS（Fe，Mn，Cd，Cr，Pb确定Ni，Zn和Cu）。进行Nemerow综合污染指数和哈丹潜在生态风险指数，以评估HMS的污染抑制症。此外，应用多变量统计分析（例如，Pearson相关，聚类分析和主成分分析）来检查HMS可能的来源。结果表明，随着CD排除，其他七个HMS的浓度没有超过土壤国家环境质量标准的二级标准值。单污染指数和Nemerow合成指数的值表明HMS污染水平为CD> Ni> Zn，Cu> Cr> Pb，Cd，Ni和P〜n在清洁到报警限额水平。然而，生态风险指数的价值进一步揭示了CD处于中度至相当大的水平，而其他HMS和合成指数属于低水平。多变量统计分析表明，Cu和Mn主要来自煤炭开采活动，而其他HMS受其他人类学来源的影响（例如，农业，交通和工业活动）。这些结果对于了解临源矿区土壤中HMS的污染水平，以及当地的环境保护和风险管理。

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