Repository logo
 
Publication

PAH air pollution at a Portuguese urban area: carcinogenic risks and sources identification

2013Journal article Open access
Simple item page
dc.contributor.authorSlezakova, Klara
dc.contributor.authorPires, J. C. M.
dc.contributor.authorCastro, Dionísia
dc.contributor.authorAlvim-Ferraz, Maria Da Conceição
dc.contributor.authorDelerue-Matos, Cristina
dc.contributor.authorBarreira Morais, Simone
dc.contributor.authorPereira, Maria do Carmo
dc.date.accessioned2014-01-17T15:08:56Z
dc.date.available2014-01-17T15:08:56Z
dc.date.issued2013
dc.description.abstractThis study aimed to characterize air pollution and the associated carcinogenic risks of polycyclic aromatic hydrocarbon (PAHs) at an urban site, to identify possible emission sources of PAHs using several statistical methodologies, and to analyze the influence of other air pollutants and meteorological variables on PAH concentrations.The air quality and meteorological data were collected in Oporto, the second largest city of Portugal. Eighteen PAHs (the 16 PAHs considered by United States Environment Protection Agency (USEPA) as priority pollutants, dibenzo[a,l]pyrene, and benzo[j]fluoranthene) were collected daily for 24 h in air (gas phase and in particles) during 40 consecutive days in November and December 2008 by constant low-flow samplers and using polytetrafluoroethylene (PTFE) membrane filters for particulate (PM10 and PM2.5 bound) PAHs and pre-cleaned polyurethane foam plugs for gaseous compounds. The other monitored air pollutants were SO2, PM10, NO2, CO, and O3; the meteorological variables were temperature, relative humidity, wind speed, total precipitation, and solar radiation. Benzo[a]pyrene reached a mean concentration of 2.02 ngm−3, surpassing the EU annual limit value. The target carcinogenic risks were equal than the health-based guideline level set by USEPA (10−6) at the studied site, with the cancer risks of eight PAHs reaching senior levels of 9.98×10−7 in PM10 and 1.06×10−6 in air. The applied statistical methods, correlation matrix, cluster analysis, and principal component analysis, were in agreement in the grouping of the PAHs. The groups were formed according to their chemical structure (number of rings), phase distribution, and emission sources. PAH diagnostic ratios were also calculated to evaluate the main emission sources. Diesel vehicular emissions were the major source of PAHs at the studied site. Besides that source, emissions from residential heating and oil refinery were identified to contribute to PAH levels at the respective area. Additionally, principal component regression indicated that SO2, NO2, PM10, CO, and solar radiation had positive correlation with PAHs concentrations, while O3, temperature, relative humidity, and wind speed were negatively correlated.por
dc.identifier.doi10.1007/s11356-012-1300-7pt_PT
dc.identifier.issn0944-1344
dc.identifier.urihttp://hdl.handle.net/10400.22/3356
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relation.ispartofseriesEnvironmental Science and Pollution Research; Vol. 20, Issue 6
dc.relation.publisherversionhttp://link.springer.com/article/10.1007/s11356-012-1300-7por
dc.subjectPolycyclic aromatic hydrocarbons (PAHs)por
dc.subjectHealth riskspor
dc.subjectTraffic emissionspor
dc.subjectCluster analysis (CA)por
dc.subjectPrincipal component analysis (PCA)por
dc.subjectLinear regression modelspor
dc.titlePAH air pollution at a Portuguese urban area: carcinogenic risks and sources identificationpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage3945por
oaire.citation.issueIssue 6
oaire.citation.startPage3932por
oaire.citation.titleEnvironmental Science and Pollution Researchpor
oaire.citation.volumeVol. 20por
person.familyNameAlvim-Ferraz
person.familyNameDelerue-Matos
person.familyNameMorais
person.givenNameMaria da Conceição
person.givenNameCristina
person.givenNameSimone
person.identifier1598822
person.identifier.ciencia-id621C-0AAB-ABF9
person.identifier.ciencia-id9A1A-43FB-5C27
person.identifier.ciencia-idB111-BBFB-F200
person.identifier.orcid0000-0001-8212-8718
person.identifier.orcid0000-0002-3924-776X
person.identifier.orcid0000-0001-6433-5801
person.identifier.ridP-9868-2017
person.identifier.ridD-4990-2013
person.identifier.scopus-author-id6603921357
person.identifier.scopus-author-id6603741848
person.identifier.scopus-author-id7007053747
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublicationa9196bc3-6bc6-4270-8407-39356ba909b0
relation.isAuthorOfPublication09f6a7bd-2f15-42b0-adc5-04bd22210519
relation.isAuthorOfPublication7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9
relation.isAuthorOfPublication.latestForDiscovery7a9c7d63-a6c7-4159-b12d-b049b8c5c8f9

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
ART_KlaraSlezakova_2012_GRAQ.pdf
Size:
95.84 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ISEP – GRAQ – Artigos