Identification of potential plant species hyperaccumulating light rare earth elements (LREE) in a mining area in Minas Gerais, Brazil

Autor: Nermeen Ashraf, Eduardo Santos Rodrigues, Eduardo de Almeida, Gabriel Sgarbiero Montanha, Cassio Hamilton Abreu-Junior, Milada Vítová, Rafael Henrique Lazzari Garcia, Hendrik Küpper, Hudson Wallace Pereira de Carvalho
Rok vydání: 2022
Předmět:
Zdroj: Environmental Science and Pollution Research. 29:90779-90790
ISSN: 1614-7499
0944-1344
Popis: Phytoextraction of rare earth elements (REE) from contaminated soils has gained importance during the last few decades. The Poços de Caldas municipality in Brazil is known for its mineral richness, including large reserves of REE. In this study, we report light REE (La, Ce, Sm, Pr, and Nd) in soils and plants collected in an area. Composite soil samples and plant individuals were collected, and total concentrations of LREE in soils were determined by wavelength dispersive X-ray fluorescence (WDXRF). The plant available LREE concentrations in soils were estimated upon the acetic acid method (F1 fractions) of the stepwise sequential extraction procedure, together with plant content that was analysed by inductively coupled plasma mass spectrometry (ICP-MS). The total sum concentrations of tested LREE in soils varied from 5.6 up to 37.9 g kg
Databáze: OpenAIRE
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