A geochemical baseline-source analysis-multidimensional risk assessment-management response framework for lead-zinc mining areas.

IF 3.8 3区环境科学与生态学 Q3 ENGINEERING, ENVIRONMENTAL

Environmental Geochemistry and Health Pub Date : 2025-09-28 DOI:10.1007/s10653-025-02780-7

Peiyu Zhang, Jiawen Zhou, Xinyang Li, Wenyong Wang, Tong Zhou, Peter Christie, Longhua Wu, Changyin Tan

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引用次数: 0

Abstract

Soil trace metal(loid) background values (BVs) are important in risk assessment, but regional BVs are difficult to obtain. Here, BVs in the Daqiao river basin were established using a cumulative frequency distribution approach with deep (> 100 cm) soil samples. A multidimensional risk assessment method evaluated the metal(loid) pollution and risks across three irrigated areas (first, FI; second, SI; and third, TI) and one unirrigated control area (UI). In addition, correlation analysis and positive matrix factorization were used to identify and quantify the pollution sources. The average BVs of chromium (Cr), nickel (Ni), copper (Cu), arsenic (As), cadmium (Cd), lead (Pb), and zinc (Zn) were 81.3, 41.4, 41.4, 16.6, 0.34, 43.7, and 118.0 mg kg^-1, respectively. In FI, SI, and TI, soils were highly contaminated with Cd, Pb, Zn, and As, derived primarily from wastewater irrigation, occupying 58-73%; and Cr, Ni, and Cu mainly from natural sources, occupying 62-89%. UI was slightly contaminated with Cu, Cd, and Pb, derived mainly from atmospheric deposition (38-52%) and natural sources (34-44%). Cadmium posed high potential ecological risks in FI (93%) and SI (96%), and Cd and As represented a health risk to children in irrigated regions. Soil remediation should be prioritized in FI, then in SI and TI; Cd should be targeted first, followed by Pb, As, Cu and Zn. This systems approach offers scalable solutions for global mining landscapes threatened by legacy pollution and evolving irrigation practices.

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铅锌矿区地球化学基线-来源分析-多维风险评估-管理响应框架

土壤痕量金属本底值（bv）在风险评价中具有重要意义，但区域本底值难以获得。本文采用累积频率分布法建立了大桥河流域深层（> ~ 100cm）土壤样品的生物多样性。采用多维风险评估方法对三个灌区（第一灌区、第二灌区、第三灌区）和一个非灌区（UI）的金属（样物质）污染和风险进行了评估。此外，利用相关分析和正矩阵分解法对污染源进行了识别和量化。铬（Cr）、镍（Ni）、铜（Cu）、砷（As）、镉（Cd）、铅（Pb）和锌（Zn）的平均BVs分别为81.3、41.4、41.4、16.6、0.34、43.7和118.0 mg kg-1。在FI、SI和TI地区，土壤中镉、铅、锌和砷的污染程度较高，主要来自废水灌溉，占58-73%；Cr、Ni、Cu以天然来源为主，占62-89%。UI区Cu、Cd、Pb污染较轻，主要来源于大气沉降（38-52%）和自然来源（34-44%）。镉在灌溉区（93%）和SI区（96%）构成高潜在生态风险，镉和砷对灌溉区儿童构成健康风险。土壤修复应优先考虑FI，其次是SI和TI；首先是Cd，其次是Pb、As、Cu和Zn。这种系统方法为受遗留污染和不断发展的灌溉实践威胁的全球采矿景观提供了可扩展的解决方案。

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来源期刊

Environmental Geochemistry and Health 环境科学-工程：环境

CiteScore

8.00

自引率

4.80%

发文量

279

审稿时长

4.2 months

期刊介绍： Environmental Geochemistry and Health publishes original research papers and review papers across the broad field of environmental geochemistry. Environmental geochemistry and health establishes and explains links between the natural or disturbed chemical composition of the earth’s surface and the health of plants, animals and people. Beneficial elements regulate or promote enzymatic and hormonal activity whereas other elements may be toxic. Bedrock geochemistry controls the composition of soil and hence that of water and vegetation. Environmental issues, such as pollution, arising from the extraction and use of mineral resources, are discussed. The effects of contaminants introduced into the earth’s geochemical systems are examined. Geochemical surveys of soil, water and plants show how major and trace elements are distributed geographically. Associated epidemiological studies reveal the possibility of causal links between the natural or disturbed geochemical environment and disease. Experimental research illuminates the nature or consequences of natural or disturbed geochemical processes. The journal particularly welcomes novel research linking environmental geochemistry and health issues on such topics as: heavy metals (including mercury), persistent organic pollutants (POPs), and mixed chemicals emitted through human activities, such as uncontrolled recycling of electronic-waste; waste recycling; surface-atmospheric interaction processes (natural and anthropogenic emissions, vertical transport, deposition, and physical-chemical interaction) of gases and aerosols; phytoremediation/restoration of contaminated sites; food contamination and safety; environmental effects of medicines; effects and toxicity of mixed pollutants; speciation of heavy metals/metalloids; effects of mining; disturbed geochemistry from human behavior, natural or man-made hazards; particle and nanoparticle toxicology; risk and the vulnerability of populations, etc.