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Impact of vehicular traffic emissions on particulate-bound PAHs: levels and associated health risks

2013Journal article Open access
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dc.contributor.authorSlezakova, Klara
dc.contributor.authorCastro, Dionísia
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorAlvim-Ferraz, Maria da Conceição M.
dc.contributor.authorMorais, Simone
dc.contributor.authorPereira, Maria do Carmo
dc.date.accessioned2014-01-17T15:08:22Z
dc.date.available2014-01-17T15:08:22Z
dc.date.issued2013
dc.description.abstractConsidering vehicular transport as one of the most health‐relevant emission sources of urban air, and with aim to further understand its negative impact on human health, the objective of this work was to study its influence on levels of particulate‐bound PAHs and to evaluate associated health risks. The 16 PAHs considered by USEPA as priority pollutants, and dibenzo[a, l]pyrene associated with fine (PM2.5) and coarse (PM2.5–10) particles were determined. The samples were collected at one urban site, as well as at a reference place for comparison. The results showed that the air of the urban site was more seriously polluted than at the reference one, with total concentrations of 17 PAHs being 2240% and 640% higher for PM2.5 and PM2.5–10, respectively; vehicular traffic was the major emission source at the urban site. PAHs were predominantly associated with PM2.5 (83% to 94% of ΣPAHs at urban and reference site, respectively) with 5 rings PAHs being the most abundant groups of compounds at both sites. The risks associated with exposure to particulate PAHs were evaluated using the TEF approach. The estimated value of lifetime lung cancer risks exceeded the health‐based guideline levels, thus demonstrating that exposure to PM2.5‐bound PAHs at levels found at urban site might cause potential health risks. Furthermore, the results showed that evaluation of benzo[a] pyrene (regarded as a marker of the genotoxic and carcinogenic PAHs) alone would probably underestimate the carcinogenic potential of the studied PAH mixtures.por
dc.identifier.doi10.1016/j.atmosres.2012.06.009pt_PT
dc.identifier.issn0169-8095
dc.identifier.urihttp://hdl.handle.net/10400.22/3355
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relation.ispartofseriesAtmospheric Research; Vol. 127
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0169809512001846por
dc.subjectAir pollutionpor
dc.subjectPolycyclic aromatic hydrocarbons (PAHs)por
dc.subjectPM2.5por
dc.subjectPM2.5–10por
dc.subjectHealth riskspor
dc.subjectVehicular trafficpor
dc.titleImpact of vehicular traffic emissions on particulate-bound PAHs: levels and associated health riskspor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage147por
oaire.citation.startPage141por
oaire.citation.titleAtmospheric Researchpor
oaire.citation.volume127por
person.familyNameDelerue-Matos
person.familyNameAlvim-Ferraz
person.familyNameMorais
person.givenNameCristina
person.givenNameMaria da Conceição
person.givenNameSimone
person.identifier1598822
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.ciencia-id621C-0AAB-ABF9
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.orcid0000-0002-3924-776X
person.identifier.orcid0000-0001-8212-8718
person.identifier.orcid0000-0001-6433-5801
person.identifier.ridD-4990-2013
person.identifier.ridP-9868-2017
person.identifier.scopus-author-id6603741848
person.identifier.scopus-author-id6603921357
person.identifier.scopus-author-id7007053747
rcaap.rightsclosedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublicationa9196bc3-6bc6-4270-8407-39356ba909b0
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relation.isAuthorOfPublication.latestForDiscoverya9196bc3-6bc6-4270-8407-39356ba909b0

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