Mostrar el registro sencillo del ítem Sánchez Ccoyllo, Odón R. Ynoue, Rita Y. Martins, Leila D. Astolfo, Rosana Miranda, Regina M. Freitas, Edmilson D. Borges, Alessandro S. Fornaro, Adalgiza Freitas, Helber Moreira, Andréa Andrade, Maria F.
dc.coverage.spatial Brasil 2018-11-05T18:01:26Z 2018-11-05T18:01:26Z 2008-01
dc.identifier.citation Sánchez-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. es_ES
dc.description.abstract In 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.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Springer es_ES
dc.relation.ispartof urn:issn:0167-6369
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Emission factors es_ES
dc.subject Road traffic es_ES
dc.subject Tunnel measurements es_ES
dc.subject Particulate matter es_ES
dc.subject Megacities es_ES
dc.title Vehicular particulate matter emissions in road tunnels in Sao Paulo, Brazil es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.subject.ocde es_ES
dc.identifier.journal Environmental Monitoring and Assessment es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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