Frontiers in Environmental Science | |
Bioconcentration and translocation of rare earth elements in plants collected from three legacy mine sites in Portugal | |
Environmental Science | |
Dulce Russo1  Isabel Dionisio1  Maria Isabel Prudêncio1  Rosa Marques1  Edgar Carvalho2  Catarina Diamantino2  Mathieu Pédrot3  Melanie Davranche3  Martine Bouhnik-Le-Coz3  Kaisa Forsyth3  Aline Dia3  | |
[1] Centro de Ciências e Tecnologias Nucleares (CTN), Instituto Superior Técnico, Universidade de Lisboa, Bobadela, Portugal;Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Bobadela, Portugal;EDM—Empresa de Desenvolvimento Mineiro, S.A., Lisbon, Portugal;Univ. Rennes, CNRS, Géosciences Rennes, UMR 6118, Rennes, France; | |
关键词: rare earth elements; acid mine drainage; abandoned mines; plant; soil; water; bioaccumulation; transfer factor; | |
DOI : 10.3389/fenvs.2023.1191909 | |
received in 2023-03-22, accepted in 2023-07-25, 发布年份 2023 | |
来源: Frontiers | |
【 摘 要 】
Rare earth elements (REE), a group of emerging contaminants with commercial and technological applications, share many physical and chemical characteristics and have thus been used as accurate tracers of various environmental samples. They have been shown to increase in receiving waters following the dissolution of host-rock material during mining activities. In this study, spontaneous vegetation and related media were collected from three Portuguese legacy mine sites in November 2020 to evaluate the phytoavailability and fate of REE. Water, soil and plant data were analyzed in the context of the 1) prevailing geochemical context, 2) the mining context, and 3) plant effects. This study presents the REE signatures for different plant species and links the signatures to a potential source of bioavailable REE. The REE accumulated in plant tissue seems to reflect the REE signature of surface waters in the mining areas, showing enrichment in middle REE. Although the soils, sediments, and waters in this study had similar features, certain plants seemed better adapted to translocating Light REE and Eu over others. Given that REE are readily available within the field conditions of a mining site, this study shows how plant physiology and biologic preference towards particular REE contribute to the fractionation of REE and create a unique signature dependent on plant type.
【 授权许可】
Unknown
Copyright © 2023 Forsyth, Dia, Marques, Prudêncio, Diamantino, Carvalho, Russo, Dionisio, Davranche, Bouhnik-Le-Coz and Pédrot.
【 预 览 】
Files | Size | Format | View |
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RO202310102801878ZK.pdf | 2127KB | download |