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Potential toxic elements in stream sediments, soils and waters in an abandoned radium mine (central Portugal)

dc.contributor.authorAntunes, I.M.H.R.
dc.contributor.authorNeiva, A.M.R.
dc.contributor.authorAlbuquerque, M.T.D.
dc.contributor.authorCarvalho, Paula
dc.contributor.authorSantos, A.C.T.
dc.contributor.authorCunha, Pedro Proença
dc.date.accessioned2017-04-27T11:34:17Z
dc.date.available2017-04-27T11:34:17Z
dc.date.issued2017
dc.descriptionThe final publication is available at Springer via http://dx.doi.org/10.1007/s10653-017-9945-2pt_PT
dc.description.abstractThe Alto da Várzea radium mine (AV) exploited ore and U-bearing minerals, such as autunite and torbernite. The mine was exploited underground from 1911 to 1922, closed in 1946 without restoration, and actually a commercial area is deployed. Stream sediments, soils and water samples were collected between 2008 and 2009. Stream sediments are mainly contaminated in As, Th, U and W, which is related to the AV radium mine. The PTEs, As, Co, Cr, Sr, Th, U, W, Zn, and electrical conductivity reached the highest values in soils collected inside the mine influence. Soils are contaminated with As and U and must not be used for any purpose. Most waters have pH values ranging from 4.3 to 6.8 and are poorly mineralized (EC = 41–186 µS/cm; TDS = 33–172 mg/L). Groundwater contains the highest Cu, Cr and Pb contents. Arsenic occurs predominantly as H2(AsO4)− and H(AsO4)2−. Waters are saturated in goethite, haematite and some of them also in lepidocrocite and ferrihydrite, which adsorbs As (V). Lead is divalent in waters collected during the warm season, being mobile in these waters. Thorium occurs mainly as Th(OH)3(CO3)−, Th(OH)2(CO3) and Th(OH)2(CO3)22−, which increase water Th contents. Uranium occurs predominantly as UO2CO3, but CaUO2(CO3)32− and CaUO2(CO3)3 also occur, decreasing its mobility in water. The waters are contaminated in NO2−, Mn, Cu, As, Pb and U and must not be used for human consumption and in agricultural activities. The water contamination is mainly associated with the old radium mine and human activities. A restoration of the mining area with PTE monitoring is necessary to avoid a public hazardpt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationANTUNES, I. M. H. R. [et al.] (2017) - Potential toxic elements in stream sediments, soils and waters in an abandoned radium mine (central Portugal). Environmental Geochemistry and Health. ISSN 1573-2983. Doi:10.1007/s10653-017-9945-2pt_PT
dc.identifier.doihttp://dx.doi.org/10.1007/s10653-017-9945-2pt_PT
dc.identifier.issn0269-4042
dc.identifier.urihttp://hdl.handle.net/10400.11/5541
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSpringerpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRadium minespt_PT
dc.subjectEnrichment factorpt_PT
dc.subjectContaminationpt_PT
dc.subjectRemediationpt_PT
dc.subjectCentral Portugalpt_PT
dc.titlePotential toxic elements in stream sediments, soils and waters in an abandoned radium mine (central Portugal)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage22pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleEnvironmental Geochemistry and Healthpt_PT
person.familyNameantunes
person.familyNameAlbuquerque
person.familyNameCarvalho
person.givenNameIsabel Margarida
person.givenNameMaria Teresa
person.givenNamePaula
person.identifier.ciencia-idCB1E-FAD2-37D6
person.identifier.ciencia-id5A1C-8956-4C0A
person.identifier.orcid0000-0003-3456-5926
person.identifier.orcid0000-0002-8782-6133
person.identifier.orcid0000-0002-3767-5410
person.identifier.ridM-1043-2013
person.identifier.ridB-1536-2013
person.identifier.scopus-author-id6701817085
person.identifier.scopus-author-id55507421600
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication1db83c95-f80c-41bb-b5c6-437ab32d9683
relation.isAuthorOfPublicatione2c2d171-e148-4c23-9cf8-0eb6d810c15e
relation.isAuthorOfPublicationf3f92fb6-6841-483f-b6bc-68dcb84b64f8
relation.isAuthorOfPublication.latestForDiscoverye2c2d171-e148-4c23-9cf8-0eb6d810c15e

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