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矿铜矿周围的土壤污染:来自半干旱气候的一个例子

Arezu Alizadeh¹, Jamshid Ghorbani^2,3, Javad Motamedi⁴

¹Department of Rangeland Management, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University, Sari, Iran.

Environmental monitoring and assessment

|January 26, 2024

概括

半干旱地区的铜矿开采造成了污染的土壤和营养缺乏. 这项研究评估了Sungun铜矿周围的土壤污染,确定了有效的补救策略的关键污染源和环境风险.

科学领域:

环境科学环境科学
地质化学地质化学
土壤科学土壤科学

背景情况:

散布的金属矿石开采,特别是铜,产生大量的废物,导致生态系统的干扰和污染.
半干旱的气候加剧了土壤问题,因为土壤内在的有机物质和营养含量较低.
伊朗西北部的苏贡铜矿为评估这种环境中的采矿影响提供了一个案例研究.

研究的目的:

评估土壤污染水平,并确定苏贡铜矿周围的污染源.
评估扰乱和自然地点的营养状况和土壤物理特性.
为了确定与矿山废物和排水相关的环境风险.

主要方法:

从矿山周围的七个地点收集的土壤样本 (n=94).
对土壤质地,电导率 (EC),pH,有机物和营养度的分析.
测量16种金属和金属化物,采用非度数多维缩放 (NMDS) 和地球积累/潜在生态风险指数.

主要成果:

污染梯度被观察到,矿山废弃物储存场 (废弃物填埋场,氧化物填埋场) 和河流沿线的污染梯度最高.
被扰乱的地点表现出营养缺乏和高度的Cd,Zn,Fe,Cu,Pb,As,Mo,Mn,Co和S,以及高EC和沙子含量.
巴赫尔河岸,苏贡河岸和氧化物垃圾填埋场显示中度至严重的环境风险.

结论:

垃圾填埋场,矿井排水和氧化物填埋场是主要的污染源.
污染地区的土壤营养缺乏和沙质纹理限制了金属的流动性和修复工作.
了解地质化学行为和金属的常见来源对于管理采矿引起的环境影响至关重要.

关键词:

污染指数污染指数重金属是一种重金属.矿山排水系统矿山排水系统氧化物倾销的原因是土壤污染土壤污染垃圾堆是一个垃圾堆.

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