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Field study on the accumulation of trace elements by vegetables produced in the vicinity of abandoned pyrite mines

dc.contributor.authorAlvarenga, Paula
dc.contributor.authorSimoes, Isabel
dc.contributor.authorPalma, Patrícia
dc.contributor.authorAmaral, Olga
dc.contributor.authorMatos, Joao Xavier
dc.date.accessioned2018-12-07T14:53:00Z
dc.date.available2018-12-07T14:53:00Z
dc.date.issued2014-02
dc.description.abstractTo evaluate the accumulation of trace elements (TE) by vegetables produced in the vicinity of abandoned pyrite mines, eighteen different small farms were selected near three mines from the Portuguese sector of the Iberian Pyrite Belt (Sao Domingos, Aljustrel and Lousal). Total and bioavailable As, Cu, Pb, and Zn concentrations were analyzed in the soils, and the same TE were analyzed in three different vegetables, lettuce (Lactuca sativa), coriander (Coriandrum sativum), and cabbage (Brassica oleracea), collected at the same locations. The soils were contaminated with As, Cu, Pb, and Zn, since their total concentrations exceeded the considered soil quality guideline values for plant production in the majority of the sampling sites. The maximum total concentrations for those TE were extremely high in some of the sampling sites (e.g. 1851 mg As kg(-1) in Sao Domingos, 1126 mg Cu kg(-1) in Aljustrel, 4946 mg Pb kg(-1) in Sao Domingos, and 1224 mg Zn kg(-1) in Aljustrel). However, the soils were mainly circumneutral, a factor that contributes to their low bioavailable fractions. As a result, generally, the plants contained levels of these elements characteristic of uncontaminated plants, and accumulation factors for all elements <1, typical of excluder plants. Furthermore, the estimated daily intake (EDI) for Cu and Zn, through the consumption of these vegetables, falls below the recommended upper limit for daily intake of these elements. The sampling site that stood out from the others was located at Sao Joao de Negrilhos (Aljustrel), where bioavailable Zn levels were higher, a consequence of the slight acidity of the soil. Therefore, the Zn content in vegetables was also higher, characteristic of contaminated plants, emphasizing the risk of Zn entering the human food chain via the consumption of crops produced on those soils. (C) 2013 Elsevier B.V. All rights reserved.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.scitotenv.2013.10.087
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.urihttp://hdl.handle.net/10400.1/11303
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier Science Bv
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectHealth-risk assessment
dc.subjectHeavy-metals
dc.subjectSão Domingos
dc.subjectMining area
dc.subjectSoil
dc.subjectBioavailability
dc.subjectConsumption
dc.subjectExtraction
dc.subjectPortugal
dc.subjectPlants
dc.titleField study on the accumulation of trace elements by vegetables produced in the vicinity of abandoned pyrite mines
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1242
oaire.citation.startPage1233
oaire.citation.titleScience of the Total Environment
oaire.citation.volume470
person.familyNameAlvarenga
person.familyNamePalma
person.familyNameMatos
person.givenNamePaula
person.givenNamePatrícia
person.givenNameJoão Xavier
person.identifier427267
person.identifier.ciencia-idEA16-C2AD-D854
person.identifier.ciencia-idA511-25AD-8A99
person.identifier.ciencia-idFE16-BE78-D4EA
person.identifier.orcid0000-0002-3225-3358
person.identifier.orcid0000-0002-9719-079X
person.identifier.orcid0000-0002-6108-1030
person.identifier.ridK-9083-2017
person.identifier.scopus-author-id16174357800
person.identifier.scopus-author-id36883197800
person.identifier.scopus-author-id8343099900
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication677532b5-7c6e-4003-bdb7-75ab4d65f898
relation.isAuthorOfPublicatione67ebf3d-65f3-4d73-9eaa-d1fac6ff6a82
relation.isAuthorOfPublicationc654e073-df37-4b42-99c3-26d576edb9be
relation.isAuthorOfPublication.latestForDiscoveryc654e073-df37-4b42-99c3-26d576edb9be

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