Artigo de periodico

Disentangling vehicular emission impact on urban air pollution using ethanol as a tracer (2018)

• Authors:
  • Brito, Joel
  • Carbone, Samara
  • Santos Junior, Djacinto Aparecido Monteiro dos
  • Dominutti, Pamela A
  • Alves, Nilmara de Oliveira
  • Rizzo, Luciana Varanda
  • Artaxo Netto, Paulo Eduardo
• USP affiliated authors: NETTO, PAULO EDUARDO ARTAXO - IF ; SANTOS JUNIOR, DJACINTO APARECIDO MONTEIRO DOS - IF
• Unidade: IF
• DOI: 10.1038/s41598-018-29138-7
• Subjects: FÍSICA ATMOSFÉRICA; AEROSSOL; POLUIÇÃO AMBIENTAL; ETANOL
• Agências de fomento:
  • Financiado pela FAPESP
  • Financiado pelo CNPq
• Language: Inglês
• Abstract: The Sao Paulo Metropolitan Area is a unique case worldwide due to the extensive use of biofuel, particularly ethanol, by its large fleet of nearly 8 million cars. Based on source apportionment analysis of Organic Aerosols in downtown Sao Paulo, and using ethanol as tracer of passenger vehicles, we have identified primary emissions from light-duty-vehicles (LDV) and heavy-duty-vehicles (HDV), as well as secondary process component. Each of those factors mirror a relevant primary source or secondary process in this densely occupied area. Using those factors as predictors in a multiple linear regression analysis of a wide range of pollutants, we have quantified the role of primary LDV or HDV emissions, as well as atmospheric secondary processes, on air quality degradation. Results show a significant contribution of HDV emissions, despite contributing only about 5% of vehicles number in the region. The latter is responsible, for example, of 40% and 47% of benzene and black carbon atmospheric concentration, respectively. This work describes an innovative use of biofuel as a tracer of passenger vehicle emissions, allowing to better understand the role of vehicular sources on air quality degradation in one of most populated megacities worldwide.
• Imprenta:
  • Publisher place: London
  • Date published: 2018
• Source:
  • Título: Nature: Scientific Reports
  • Volume/Número/Paginação/Ano: v. 2018, n. 10679, p. 1-8, 2018


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• ABNT

  BRITO, Joel et al. Disentangling vehicular emission impact on urban air pollution using ethanol as a tracer. Nature: Scientific Reports, v. 2018, n. 10679, p. 1-8, 2018Tradução . . Disponível em: https://doi.org/10.1038/s41598-018-29138-7. Acesso em: 31 mar. 2026.

• APA

  Brito, J., Carbone, S., Santos Junior, D. A. M. dos, Dominutti, P. A., Alves, N. de O., Rizzo, L. V., & Artaxo Netto, P. E. (2018). Disentangling vehicular emission impact on urban air pollution using ethanol as a tracer. Nature: Scientific Reports, 2018( 10679), 1-8. doi:10.1038/s41598-018-29138-7

• NLM

  Brito J, Carbone S, Santos Junior DAM dos, Dominutti PA, Alves N de O, Rizzo LV, Artaxo Netto PE. Disentangling vehicular emission impact on urban air pollution using ethanol as a tracer [Internet]. Nature: Scientific Reports. 2018 ; 2018( 10679): 1-8.[citado 2026 mar. 31 ] Available from: https://doi.org/10.1038/s41598-018-29138-7

• Vancouver

  Brito J, Carbone S, Santos Junior DAM dos, Dominutti PA, Alves N de O, Rizzo LV, Artaxo Netto PE. Disentangling vehicular emission impact on urban air pollution using ethanol as a tracer [Internet]. Nature: Scientific Reports. 2018 ; 2018( 10679): 1-8.[citado 2026 mar. 31 ] Available from: https://doi.org/10.1038/s41598-018-29138-7

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