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Polycyclic aromatic hydrocarbons in primary school environments: Levels and potential risks

2017Journal article Open access
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dc.contributor.authorOliveira, Marta
dc.contributor.authorSlezakova, Klara
dc.contributor.authorMadureira, Joana
dc.contributor.authorFernandes, Eduardo de Oliveira
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorMorais, Simone
dc.contributor.authorPereira, Maria do Carmo
dc.date.accessioned2017-01-26T16:11:04Z
dc.date.issued2017
dc.description.abstractAlthough polycyclic aromatic hydrocarbons (PAHs) are priority air pollutants that strongly affect human health, information concerning the indoor exposures is still limited. This study characterized PAH levels in primary schools and evaluated risk for the respective students (aged 8–10 years) in comparison with school personnel. During January–April 2014, eighteen particulate–bound (PM2.5) PAHs (16 USEPA priority compounds, dibenzo[a,l]pyrene, benzo[j]fluoranthene) were collected (indoors and outdoors) at ten primary urban schools in Portugal. Total mean concentrations (ΣPAHs) ranged 2.8–54 ng m− 3 in indoor air, whereas corresponding outdoor levels were 7.1–48 ng m− 3. Indoor/outdoor ratios of lighter congeners (2–3 aromatic rings) demonstrated a contribution from indoor origin while heavier PAHs (4–6 aromatic rings) originated mostly from infiltration of ambient air indoors; traffic (both from diesel and gasoline fuelled vehicles) was the predominant source of indoor PAHs. Total cancer risk of 8–10 years old children exceeded (up to 22 times) USEPA recommended guideline of 10− 6, and 7–87 times WHO health–based threshold of 10− 5. Risk due to indoor exposure in schools was 2–10 times higher than outdoors, mainly because of the higher amount of time that students spent indoors.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.scitotenv.2016.09.195pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.22/9453
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relation.ispartofseriesScience of The Total Environment;Vol. 575
dc.relation.publisherversionhttp://www.sciencedirect.com/science/article/pii/S0048969716321258pt_PT
dc.subjectAirpt_PT
dc.subjectSchoolspt_PT
dc.subjectPolycyclic aromatic hydrocarbons (PAHs)pt_PT
dc.subjectIndoor/outdoorpt_PT
dc.subjectChildrenpt_PT
dc.subjectRiskpt_PT
dc.titlePolycyclic aromatic hydrocarbons in primary school environments: Levels and potential riskspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1167pt_PT
oaire.citation.startPage1156pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
person.familyNameDelerue-Matos
person.familyNameMorais
person.givenNameCristina
person.givenNameSimone
person.identifier1598822
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.orcid0000-0002-3924-776X
person.identifier.orcid0000-0001-6433-5801
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id6603741848
person.identifier.scopus-author-id7007053747
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9
relation.isAuthorOfPublication.latestForDiscovery7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9

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