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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/48865
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dc.creatorRosimeire Resende dos Santospt_BR
dc.creatorZenilda de Lourdes Cardealpt_BR
dc.creatorHelvécio Costa Menezespt_BR
dc.date.accessioned2023-01-11T17:35:45Z-
dc.date.available2023-01-11T17:35:45Z-
dc.date.issued2020-
dc.citation.volume250pt_BR
dc.citation.spage126224pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.chemosphere.2020.126223pt_BR
dc.identifier.issn0045-6535pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/48865-
dc.description.resumoAir quality in large cities has worsened in recent years as a consequence people’s health is directly affected. Among the toxic compounds released to environmental air are polycyclic aromatic hydrocarbons (PAHs), nitrated PAHs (nitro-PAHs), and oxygenated PAHs (oxy-PAHs). Performant methods to analyze these compounds is necessary to enable adequate monitoring of air quality. Thus, this manuscript presents the development of a highly sensitive method to analyze PAHs, nitro-PAHs, and oxy-PAHs collected from ambient air (PM2.5) and the gas phase for a period of one year in the urban area of Belo Horizonte, Brazil. PAHs and their derivatives were extracted by cold fiber solid phase microextraction (CF-SPME) and analyzed by gas chromatography coupled to mass spectrometry (GC/MS). The proposed method allows simultaneous analysis of 16 PAHs, nitro-PAHs and oxy-PAHs, presenting very good limits of detection and quantification, as well as appropriate precision and recovery. The results obtained for the period of one year allowed different studies. The compounds collected simultaneously from gas and particulate phase showed that total concentration of 16 PAHs were higher in the gas phase than in the particulate. On the other hand, nitro-PAHs and oxy-PAHs presented similar concentration in gas and particulate phases. The potential carcinogenicity of PAHs relative to benzo[a]pyrene showed benzo[a]pyrene equivalents of 0.49 ng m−³. The estimated risk of lifetime lung cancer was 5 × 10−5. Principal component analysis and diagnostic ratio was applied for source distribution indicating that burning of gasoline, diesel and biomass accounted for the PAHs profile in ambient air samples.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipOutra Agênciapt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofChemospherept_BR
dc.rightsAcesso Restritopt_BR
dc.subjectPM2.5pt_BR
dc.subjectGas phasept_BR
dc.subjectHigh volume samplerpt_BR
dc.subjectCF-SPMEpt_BR
dc.subjectGC/MSpt_BR
dc.subject.otherQuímica analíticapt_BR
dc.subject.otherHidrocarbonetos policiclicos aromaticospt_BR
dc.subject.otherCromatografia de gáspt_BR
dc.subject.otherEspectrometria de massapt_BR
dc.subject.otherAr Qualidadept_BR
dc.subject.otherAr Análisept_BR
dc.subject.otherAr Poluiçãopt_BR
dc.subject.otherBelo Horizonte (MG)pt_BR
dc.titlePhase distribution of polycyclic aromatic hydrocarbons and their oxygenated and nitrated derivatives in the ambient air of a Brazilian urban areapt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://www.sciencedirect.com/science/article/pii/S0045653520304161pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1383-6299pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-5759-612Xpt_BR
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