Rare earth elements (REEs)

dc.contributor.authorBISPO, FABIO H.A.pt_BR
dc.contributor.authorMENEZES, MICHELE D. dept_BR
dc.contributor.authorFONTANA, ADEMIRpt_BR
dc.contributor.authorSARKIS, JORGE E. de S.pt_BR
dc.contributor.authorGONCALVES, CRISTIANO M.pt_BR
dc.contributor.authorCARVALHO, TEOTONIO S. dept_BR
dc.contributor.authorCURI, NILTONpt_BR
dc.contributor.authorGUILHERME, LUIZ R.G.pt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2021-12-30T13:36:01Z
dc.date.available2021-12-30T13:36:01Z
dc.date.issued2021pt_BR
dc.description.abstractRare earth elements have been increasingly used in modern societies and soils are likely to be the final destination of several REE-containing (by)products. This study reports REE contents for topsoils (0–20 cm) of 175 locations in reference (n = 68) and cultivated (n = 107) areas in Brazil. Benchmark soil samples were selected accomplishing a variety of environmental conditions, aiming to: i) establishing natural background and anthropogenic concentrations for REE in soils; ii) assessing potential contamination of soils - via application of phosphate fertilizers - with REE; and, iii) predicting soil-REE contents using biomes, soil type, parent material, land use, sand content, and biomes-land use interaction as forecaster variables through generalized least squares multiple regression. Our hypotheses were that the variability of soil-REE contents is influenced by parent material, pedogenic processes, land use, and biomes, as well as that cultivated soils may have been potentially contaminated with REE via input of phosphate fertilizers. The semi-total concentrations of REE were assessed by inductively coupled plasma mass spectrometry (ICP-MS) succeeding a microwave-assisted aqua regia digestion. Analytical procedures followed a rigorous QA/QC protocol. Soil physicochemical composition and total oxides were also determined. Natural background and anthropogenic concentrations for REE were established statistically from the dataset by the median plus two median absolute deviations method. Contamination aspects were assessed by REE-normalized patterns, REE fractionation indices, and Ce and Eu anomalies ratios, as well as enrichment factors. The results indicate that differences in the amounts of REE in cultivated soils can be attributed to land use and agricultural sources (e.g., phosphate-fertilizer inputs), while those in reference soils can be attributed to parent materials, biomes, and pedogenic processes. The biomes, land use, and sand content helped to predict concentrations of light REE in Brazilian soils, with parent material being also of special relevance to predict heavy REE contents in particular.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)pt_BR
dc.description.sponsorshipInstituto Tecnológico Vale (ITV)pt_BR
dc.description.sponsorshipIDCNPq: 406806/2013-6pt_BR
dc.description.sponsorshipIDCAPES: 88881.131785/2016–01pt_BR
dc.description.sponsorshipIDITV: VALE/UFLA 020/2012pt_BR
dc.format.extent1-12pt_BR
dc.identifier.citationBISPO, FABIO H.A.; MENEZES, MICHELE D. de; FONTANA, ADEMIR; SARKIS, JORGE E. de S.; GONCALVES, CRISTIANO M.; CARVALHO, TEOTONIO S. de; CURI, NILTON; GUILHERME, LUIZ R.G. Rare earth elements (REEs): geochemical patterns and contamination aspects in Brazilian benchmark soils. <b>Environmental Pollution</b>, v. 286, p. 1-12, 2021. DOI: <a href="https://dx.doi.org/10.1016/j.envpol.2021.117972">10.1016/j.envpol.2021.117972</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32590.
dc.identifier.doi10.1016/j.envpol.2021.117972pt_BR
dc.identifier.issn0269-7491pt_BR
dc.identifier.orcid0000-0002-6745-8185pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6745-8185
dc.identifier.percentilfi90.14pt_BR
dc.identifier.percentilfiCiteScore94.00pt_BR
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/32590
dc.identifier.vol286pt_BR
dc.relation.ispartofEnvironmental Pollutionpt_BR
dc.rightsopenAccesspt_BR
dc.subjectrare earths
dc.subjectenvironment
dc.subjectgeochemistry
dc.subjecttropical regions
dc.subjectsoils
dc.subjectsurface contamination
dc.subjectanthropocene
dc.titleRare earth elements (REEs)pt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorJORGE EDUARDO DE SOUZA SARKIS
ipen.codigoautor1080
ipen.contributor.ipenauthorJORGE EDUARDO DE SOUZA SARKIS
ipen.date.recebimento21-12
ipen.identifier.fi9.988pt_BR
ipen.identifier.fiCiteScore12.7pt_BR
ipen.identifier.ipendoc28358pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi6.000 ou mais
ipen.range.percentilfi75.00 - 100.00
ipen.subtitulogeochemical patterns and contamination aspects in Brazilian benchmark soilspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationad66e386-1f88-4fcc-b1d9-04bff1556e8e
relation.isAuthorOfPublication.latestForDiscoveryad66e386-1f88-4fcc-b1d9-04bff1556e8e
sigepi.autor.atividadeSARKIS, JORGE E. de S.:1080:710:Npt_BR
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