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Metal(loids) bioaccessibility in road dust from the surrounding villages of an active mine

2021-05Journal article Open access
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dc.contributor.authorCandeias, Carla
dc.contributor.authorÁvila, Paula Freire
dc.contributor.authorSilva, Ferreira Da
dc.contributor.authorRocha, Fernando
dc.date.accessioned2022-01-25T12:45:15Z
dc.date.available2022-01-25T12:45:15Z
dc.date.issued2021-05
dc.description.abstractABSTRACT: Human activities, in general, cause a significant impact on the environment and human health. The present study aims to characterize the road dust of villages located near an active mine and to assess metal(loids) bioaccessible fractions. From the collected road dust samples (<250 µm fraction), the pseudo total, gastric (G) and gastrointestinal (GI) phase (UBM assay) concentrations, mineralogical composition, enrichment factor (EF), and risk for humans were determined. The obtained results revealed that arsenic represents the highest risk to humans, with mean pseudototal values higher than the maximum reference value range. The enrichment factor pointed to As as having significant to very high enrichment in all of the villages. In addition, Cd presented the maximum EF values in all of the villages, and was thus classified as having a very high enrichment. Particles enriched in As, Ca, Fe, Cu, Al, and Ti were identified by SEM-EDS in weathered agglomerates, and were linked to mine wastes and long-distance transport through both wind and/or traffic. The arsenic bioaccessibility fraction (%BAF) presented low values in the studied samples, possibly because of the low complex solubility of Fe with adsorbed As, limiting the release of arsenic and reducing its bioaccessibility. The concentrations of bioaccessible Cd for the G and GI phases were within the reference range, while for Cu, they were above and for Pb they were lower than the reference value range. The results show that the pseudototal fraction risk is overestimated when compared with BAF%; nevertheless, the total G and GI risks were above the carcinogenic target risk (1 × 10−6) in most of the samples. The carcinogenic risk of the bioaccessible contaminants showed that As represented the higher risk for developing cancer over a lifetime, with ingestion being the main risk route.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCandeias et al. 2021, ‘Metal(loids) bioaccessibility in road dust from the surrounding villages of an active mine’, Atmosphere , vol. 12, n.º 6, article 685. doi:10.3390/atmos12060685.pt_PT
dc.identifier.doihttps://doi.org/10.3390/atmos12060685pt_PT
dc.identifier.issn2073-4433
dc.identifier.urihttp://hdl.handle.net/10400.9/3723
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationPortuguese Foundation of Science and Technology (FCT) and the POHP/FSE funding program for the fellowship SFRH/BD/63349/2009.pt_PT
dc.relationGeoBioTec (UID/GEO/04035/2019; UIDB/04035/2020).pt_PT
dc.relation.ispartofseries685;
dc.relation.publisherversionhttps://www.mdpi.com/2073-4433/12/6/685/htmpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectRoad dustpt_PT
dc.subjectActive minept_PT
dc.subjectMetal(loids)pt_PT
dc.subjectArsenicpt_PT
dc.subjectOral bioaccessibilitypt_PT
dc.subjectHuman health riskpt_PT
dc.titleMetal(loids) bioaccessibility in road dust from the surrounding villages of an active minept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBasel, Switzerlandpt_PT
oaire.citation.issue6pt_PT
oaire.citation.titleAtmospherept_PT
oaire.citation.volume12pt_PT
person.familyNameCandeias
person.familyNameÁvila
person.familyNameFerreira da Silva
person.familyNameRocha
person.givenNameCarla
person.givenNamePaula
person.givenNameEduardo
person.givenNameFernando
person.identifier92370
person.identifier.ciencia-idD912-6FC4-79CC
person.identifier.ciencia-idF511-4297-FBAC
person.identifier.ciencia-id6F13-70A2-3998
person.identifier.orcid0000-0001-6664-8545
person.identifier.orcid0000-0002-4080-0737
person.identifier.orcid0000-0002-3019-8471
person.identifier.orcid0000-0002-3636-3933
person.identifier.ridA-2521-2014
person.identifier.ridB-2774-2014
person.identifier.ridB-3317-2012
person.identifier.ridA-4532-2009
person.identifier.scopus-author-id37062910200
person.identifier.scopus-author-id6602213683
person.identifier.scopus-author-id8626859600
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication4f69c437-1652-4a44-8d80-148802226f24
relation.isAuthorOfPublication8ae5b98e-08fe-4091-a8c7-a18a501bb150
relation.isAuthorOfPublicationd5ad9273-cc1a-42a5-9d18-f9931f7de231
relation.isAuthorOfPublicationd339c03a-09fd-4f20-beda-503e3bc2f754
relation.isAuthorOfPublication.latestForDiscovery8ae5b98e-08fe-4091-a8c7-a18a501bb150

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