Repository logo
 
Publication

Environmental factors and metal mobilisation in alluvial sediments: Minas Gerais, Brazil

2021Journal article Open access
Simple item page
dc.contributor.authorFonseca, Rita
dc.contributor.authorPinho, Ana Catarina
dc.contributor.authorAlbuquerque, M.T.D.
dc.contributor.authorAraújo, Joana
dc.date.accessioned2021-03-17T14:46:50Z
dc.date.available2021-03-17T14:46:50Z
dc.date.issued2021
dc.description.abstractIn areas contaminated by potentially toxic elements (PTEs), knowledge of processes of metal mobilisation is the basis for the choice of appropriate remediation methodologies. The mobilisation of metals is a function of several factors, and the response to these factors must be well known during the planning of remediation strategies. The activity of an ore metallurgical plant in South‐East Brazil resulted in major contamination by several heavy metals. Reversing the contamination’s negative impact required geochemical assessment of the area, including the physicochemical characterisation, quantification, and delimitation of PTEs, and the rating of the solubilisation/mobilisation capacity of these elements. The definition of spatial patterns for PTEs’ distribution allowed the construction of contamination risk maps which work as a tool for the mitigation and control of the contamination plume. The chemical analysis of interstitial water and selective and sequential extraction methodologies showed that elements that occur in the environment in critical concentrations (Zn, Cd, Pb, As) are mostly associated with easily mobilised forms (soluble, exchangeable cations, associated with Mn oxides). Given the great mobility of the contamination plume, any process of removal of contaminated material becomes unfeasible, thus the strategy of remediation for the stream and associated alluvial deposits must be based on methods of in situ decontamination.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFONSECA, R. [et al.] (2021) - Environmental factors and metal mobilisation in alluvial sediments: Minas Gerais, Brazil. Geosciences. ISSN 2076-3263.11(3):110. https://doi.org/10.3390/geosciences11030110pt_PT
dc.identifier.doi10.3390/geosciences11030110pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.11/7490
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://www.mdpi.com/2076-3263/11/3/110pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAlluvial sedimentspt_PT
dc.subjectMetal mobilisationpt_PT
dc.subjectInterstitial waterpt_PT
dc.subjectSequential extractionpt_PT
dc.subjectGeostatisticspt_PT
dc.subjectSequential gaussian simulationpt_PT
dc.subjectRemediation methodologiespt_PT
dc.titleEnvironmental factors and metal mobilisation in alluvial sediments: Minas Gerais, Brazilpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.startPage110pt_PT
oaire.citation.titleGeosciencespt_PT
oaire.citation.volume11pt_PT
person.familyNamePinho
person.familyNameAlbuquerque
person.familyNameFerreira da Fonseca Ventura Araújo
person.givenNameAna Catarina
person.givenNameMaria Teresa
person.givenNameJoana
person.identifierhttps://www.researchgate.net/profile/Joana_Araujo16/info
person.identifier.ciencia-idA615-769B-9C33
person.identifier.ciencia-id5A1C-8956-4C0A
person.identifier.ciencia-id2617-7BC7-DE98
person.identifier.orcid0000-0002-0511-3165
person.identifier.orcid0000-0002-8782-6133
person.identifier.orcid0000-0003-4956-4061
person.identifier.ridB-1536-2013
person.identifier.scopus-author-id55507421600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationdc0639e8-1085-4e9e-9839-cf689364ff20
relation.isAuthorOfPublicatione2c2d171-e148-4c23-9cf8-0eb6d810c15e
relation.isAuthorOfPublication851c087c-ffbf-41df-9ed0-ff898e42cb7a
relation.isAuthorOfPublication.latestForDiscoverye2c2d171-e148-4c23-9cf8-0eb6d810c15e

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Environmental Factors and Metal Mobilislisation_A.pdf
Size:
7.98 MB
Format:
Adobe Portable Document Format
Download

Collections

ESTCB - Artigos em revistas com arbitragem científica