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Geochemical background concentrations of potentially toxic elements in soils of the Carajás Mineral Province, southeast of the Amazonian Craton.
Environmental Monitoring and Assessment ( IF 3 ) Pub Date : 2020-09-21 , DOI: 10.1007/s10661-020-08611-9
Mauricio Wilians de Lima 1 , Sheryle Santos Hamid 1 , Edna Santos de Souza 2 , Renato Alves Teixeira 3 , Dulcidéia da Conceição Palheta 4 , Kelson do Carmo Freitas Faial 5 , Antonio Rodrigues Fernandes 1
Affiliation  

The objective of this study was to establish background concentrations of potentially toxic elements (PTEs) in soils from the Carajás 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 Pará. 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.



中文翻译:

亚马逊克拉通东南部卡拉加斯矿产省土壤中潜在有毒元素的地球化学背景浓度。

这项研究的目的是确定亚马逊河东南部克拉顿市卡拉加斯矿产省(CMP)的土壤中潜在有毒元素(PTE)的背景浓度。在微波中消化PTE的Al,Ba,Cd,Co,Cr,Cu,Fe,Mn,Ni,Pb,Ti,V和Zn并通过光发射光谱法(ICP OES)进行定量。物理化学和矿物学属性的可变性导致PTE浓度的变化。Al,Fe,Cr,Mn,Mo,Ni,Ti和V的高本底浓度,尤其是Cd,Cu,Cr,Ba和Co的PTE浓度大于巴西国民保健所定义的预防值。环境委员会。土壤质量参考值(QRVs)大于大多数巴西州和帕拉州土壤的参考值。PTE的高本底浓度和QRV值表明该地区受到原材料的强烈影响,其中富含铁质沉积物和其他相关矿物。这些结果是在天然PTE丰富的地区建立土壤质量标准和环境保护公共政策的重要工具。

更新日期:2020-09-21
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