Vehicular particulate matter emissions in road tunnels in Sao Paulo, Brazil

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dc.contributor.authorSánchez Ccoyllo, Odón R.
dc.contributor.authorYnoue, Rita Y.
dc.contributor.authorMartins, Leila D.
dc.contributor.authorAstolfo, Rosana
dc.contributor.authorMiranda, Regina M.
dc.contributor.authorFreitas, Edmilson D.
dc.contributor.authorBorges, Alessandro S.
dc.contributor.authorFornaro, Adalgiza
dc.contributor.authorFreitas, Helber
dc.contributor.authorMoreira, Andréa
dc.contributor.authorAndrade, Maria F.
dc.coverage.spatialBrasil
dc.date.accessioned2018-11-05T18:01:26Z
dc.date.available2018-11-05T18:01:26Z
dc.date.issued2009-02
dc.description.abstractIn the metropolitan area of São Paulo, Brazil, ozone and particulate matter (PM) are the air pollutants that pose the greatest threat to air quality, since the PM and the ozone precursors (nitrogen oxides and volatile organic compounds) are the main source of air pollution from vehicular emissions. Vehicular emissions can be measured inside road tunnels, and those measurements can provide information about emission factors of in-use vehicles. Emission factors are used to estimate vehicular emissions and are described as the amount of species emitted per vehicle distance driven or per volume of fuel consumed. This study presents emission factor data for fine particles, coarse particles, inhalable particulate matter and black carbon, as well as size distribution data for inhalable particulate matter, as measured in March and May of 2004, respectively, in the Jânio Quadros and Maria Maluf road tunnels, both located in São Paulo. The Jânio Quadros tunnel carries mainly light-duty vehicles, whereas the Maria Maluf tunnel carries light-duty and heavy-duty vehicles. In the Jânio Quadros tunnel, the estimated light-duty vehicle emission factors for the trace elements copper and bromine were 261 and 220 microg km(-1), respectively, and 16, 197, 127 and 92 mg km(-1), respectively, for black carbon, inhalable particulate matter, coarse particles and fine particles. The mean contribution of heavy-duty vehicles to the emissions of black carbon, inhalable particulate matter, coarse particles and fine particles was, respectively 29, 4, 6 and 6 times higher than that of light-duty vehicles. The inhalable particulate matter emission factor for heavy-duty vehicles was 1.2 times higher than that found during dynamometer testing. In general, the particle emissions in São Paulo tunnels are higher than those found in other cities of the world.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationSánchez-Ccoyllo, O. R., Ynoue, R. Y., Martins, L. D., Astolfo, R., Miranda, R. M., Freitas, E. D., ... Andrade, M. F. (2009). Vehicular particulate matter emissions in road tunnels in Sao Paulo, Brazil.==$Environmental monitoring and assessment, 149,$==241-249. https://doi.org/10.1007/s10661-008-0198-5es_ES
dc.identifier.doihttps://doi.org/10.1007/s10661-008-0198-5es_ES
dc.identifier.journalEnvironmental Monitoring and Assessmentes_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3302
dc.language.isoenges_ES
dc.publisherSpringeres_ES
dc.relation.ispartofurn:issn:0167-6369
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectEmission factorses_ES
dc.subjectRoad traffices_ES
dc.subjectTunnel measurementses_ES
dc.subjectParticulate matteres_ES
dc.subjectMegacitieses_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.00es_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.09es_ES
dc.titleVehicular particulate matter emissions in road tunnels in Sao Paulo, Braziles_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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