The objective of this study was to evaluate the concentration of potentially toxic elements in Brachiaria decumbens, Stylosanthes guianensis, and Saccharum officinarum plants and soil samples in affected and unaffected areas by rupture of the Fundão dam, Brazil. Samples were collected in areas affected by residues from the Fundão dam (RAA1, RAA2, RAA3) and in an unaffected area (control). The material was analyzed for the composition of micronutrients and trace elements in soil and plants, as well as contamination factor (CF), accumulation factor, and translocation factor (TF). Overall, the results showed that soil and plant tissues had increased Fe, Mn, Cu, and Cr content and decreased Zn content in the affected areas, compared to the control. Leaves and roots of B. decumbens showed an increase in Fe content in affected areas, compared to the control, reaching a mean maximum value of 42 958 µg/g of roots of RAA2‐collected plants. As a result, CF for Fe of B. decumbens was classified as very high and they presented low TF values. Furthermore, B. decumbens collected in affected areas showed an increase of Fe, Mn, Cu, and Cr in leaves, stems, and roots, whereas in Stylosanthes guianensis, there was an increase of Fe concentration in all tissues and Cr in leaves. Also, Saccharum officinarum showed the accumulation of Mn in the stem and Cu in leaves and stem. On the other hand, there was no contamination of plants by hazardous elements such as Pb, Cd, and As in the samples analyzed. In conclusion, increases in the content of Fe, Mn, Cu, and Cr were found in soil and several plant tissues of residue‐affected areas, which could compromise plant growth and represent potential hazards arising from the biomagnification process in the food chain. Integr Environ Assess Manag 2020;16:596–607. © 2020 SETAC

中文翻译：

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在巴西马里亚纳的Fundão大坝破坏影响的地点种植的经济型植物土壤和组织中的金属评估。

这项研究的目的是评估在臂状臂芽孢杆菌，styyantanthes guianensis和officinarum中的潜在有毒元素的浓度。巴西Fundão大坝破裂导致受影响和未受影响地区的植物和土壤样品。在Fundão大坝（RAA1，RAA2，RAA3）残留物影响的区域和未受影响的区域（对照）收集样品。分析了该材料的土壤和植物中微量营养元素和微量元素的组成，以及污染因子（CF），累积因子和转运因子（TF）。总体而言，结果表明，与对照组相比，土壤和植物组织的铁，锰，铜和铬含量增加，而锌含量降低。与对照相比，枯草芽孢杆菌的叶和根显示受影响区域的铁含量增加，达到RAA2收集的植物根的平均值为42958 µg / g。结果，CF为FeB. decumbens被归类为非常高，并且它们的TF值很低。此外，在受影响地区收集的腐烂芽孢杆菌显示出叶，茎和根中铁，锰，铜和铬的含量增加，而剑兰（Stylosanthes guianensis）的所有组织中铁含量和叶中的铬含量都增加。另外，蔗糖表现出锰在茎中的积累和铜在叶和茎中的积累。另一方面，在分析的样品中，没有有害元素如Pb，Cd和As污染植物。总之，在土壤和残留物受影响地区的一些植物组织中发现了Fe，Mn，Cu和Cr含量的增加，这可能会损害植物的生长，并代表食物链中生物放大过程产生的潜在危害。Integr环境评估管理2020； 16：596-607。©2020 SETAC