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Water-rock interaction and potential ontamination risk in a U-enriched area

2021Journal article Open access
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dc.contributor.authorAntunes, I.M.H.R.
dc.contributor.authorTeixeira, Rui
dc.contributor.authorAlbuquerque, M.T.D.
dc.contributor.authorValente, Teresa
dc.contributor.authorCarvalho, Paula
dc.contributor.authorSantos, António
dc.date.accessioned2021-06-18T13:45:31Z
dc.date.available2021-06-18T13:45:31Z
dc.date.issued2021
dc.description.abstractThe Picoto mining area is in the village of Vilar Seco (Viseu), central Portugal. Mineralization occurs mainly in quartz veins with meta-torbernite and uranophane and some U-bearing minerals, cutting a Variscan granite. Exploitation took place in two phases, between 1917 and 1953, and since the closure, the area has never been remediated. Water–rock interaction processes, including the mobility of potentially toxic elements through soil and water (surface and groundwater), were identified with the determination in situ of physicochemical parameters and selected anions and cations, by ICP-OES. The soils are contaminated with As (>44 mg/kg), Cu (>23 mg/kg), and U (>40 mg/kg) and cannot be used for agricultural or domestic purposes. The waters are generally weakly mineralized and have pH values ranging from acidic to neutral. However, some of them are contaminated with NO2 (up to 2.3 mg/L), Fe (up to 1849 mg/L), Mn (up to 777 mg/L), Cu (up to 5.4 g/L), As (up to 14.7 g/L), and U (up to 66.2 g/L) and cannot be used for human consumption or agricultural activities. The soil and water contamination are mainly related to the old mine activities and the subsequent human activities that have developed in the area.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationANTUNES, I.M.H.R. [et al.] (2021) - Water-rock interaction and potential ontamination risk in a U-enriched area. Geosciences 2021, 11, 217. https://doi.org/10.3390/geosciences11050217pt_PT
dc.identifier.doi10.3390/geosciences11050217pt_PT
dc.identifier.issn2076-3263
dc.identifier.urihttp://hdl.handle.net/10400.11/7590
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationUIDB/ MAR/04292/2020pt_PT
dc.relationINSTITUTE OF EARTH SCIENCES
dc.relation.publisherversionhttps://www.mdpi.com/2076-3263/11/5/217pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRadium/uranium minespt_PT
dc.subjectSoilpt_PT
dc.subjectWaterpt_PT
dc.subjectEnvironmental riskpt_PT
dc.subjectCentral Portugalpt_PT
dc.titleWater-rock interaction and potential ontamination risk in a U-enriched areapt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleINSTITUTE OF EARTH SCIENCES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04683%2F2020/PT
oaire.citation.issue5pt_PT
oaire.citation.startPage217pt_PT
oaire.citation.titleGeosciencespt_PT
oaire.citation.volume11pt_PT
oaire.fundingStream6817 - DCRRNI ID
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
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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