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首页> 外文期刊>Environmental Monitoring and Assessment >Geochemical background concentrations of potentially toxic elements in soils of the Carajas Mineral Province, southeast of the Amazonian Craton
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Geochemical background concentrations of potentially toxic elements in soils of the Carajas Mineral Province, southeast of the Amazonian Craton

机译：亚马逊Craton东南部的Carajas Minal省土壤潜在有毒元素的地球化学背景浓度

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摘要

The objective of this study was to establish background concentrations of potentially toxic elements (PTEs) in soils from the Carajas Mineral Province (CMP), southeastern Amazonian Craton. The PTEs Al, Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Ti, V, and Zn were digested in microwaves and quantified by optical emission spectrometry (ICP OES). The variability of physical-chemical and mineralogical attributes contributed to variation in PTE concentrations. High background concentrations of Al, Fe, Cr, Mn, Mo, Ni, Ti, and V and, in particular, the PTE concentrations of Cd, Cu, Cr, Ba, and Co were greater than the prevention values defined by the Brazilian National Council of Environment. Soil quality reference values (QRVs) were greater than those determined for most Brazilian states and soils in the state of Para. The high background concentrations and QRVs of PTEs show that the region is strongly influenced by the source material, rich in ferruginous deposits and other associated minerals. The results are an important tool for establishing soil quality standards and public policies for environmental protection in regions naturally PTE enriched.
机译：本研究的目的是建立来自亚马逊省东南部的Carajas矿物省（CMP）的土壤中潜在有毒元素（PTES）的背景浓度。在微波中消化PTES Al，Ba，Cd，Co，Cr，Cu，Fe，Mn，Ni，Pb，Ti，V和Zn，并通过光学发射光谱法（ICP OES）量化。物理化学和矿物学属性的可变性有助于PTE浓度的变化。 Al，Fe，Cr，Mn，Mo，Ni，Ti和V的高背景浓度，特别是CD，Cu，Cr，Ba和Co的PTE浓度大于巴西国家定义的预防值环境委员会。土壤质量参考价值（QRV）大于达巴拉国最基本的大多数巴西州和土壤。 PTES的高背景浓度和QRV显示该区域受到源材料的强烈影响，富含铁料沉积物和其他相关矿物质。结果是建立土壤质量标准的重要工具，在富集的地区环境保护的环境保护标准和公共政策。

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