Measurements of emissions from motorcycles and modeling its impact on air quality
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Journal of the Brazilian Chemical Society
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The increase in the number of motorcycles in large Brazilian cities is due to several factors
such as traffic, low cost, mobility, few parking lots and the low efficiency of public transportation,
becoming an important factor in air quality deterioration. In this context, vehicle emissions
monitoring is essential to understand the contribution to air pollution as a whole. In this scenario,
the emissions were sampled on a motorcycle dynamometer test bench and analyzed by gas
chromatography and on-line analyzers according to the EC/97/24 standard (European Commission).
Emissions from motorcycles using commercial gasoline (with 22% of ethanol) were used in
combination with meteorological data and ambient air pollutants for Rio de Janeiro City (Brazil)
during the Winter of 2011, using the trajectory model OZIPR (Ozone Isopleth Package for
Research) and the chemical model SAPRC99 (State-wide Air Pollution Research Centre) to assess
the impact on the ozone formation in the troposphere of Rio de Janeiro for the next several years.
The results indicate that ozone levels will exceed the established limits by national legislation within
three years. The study also showed that pollutant emission rates stay in agreement with emissions
recommended by the Brazilian legislation for all phases. The increase in ozone concentration
occurs due to high emissions of reactive volatile organic compounds in an atmosphere with high
levels of nitrogen oxides (NOx). Given this scenario, additional measures are necessary to manage
emissions from mobile sources in the future.
Como referenciar
GARCIA, LUCIA F.A.; CORREA, SERGIO M.; PENTEADO, RENATO; DAEMME, LUIZ C.; GATTI, LUCIANA V.; ALVIM, DEBORA S. Measurements of emissions from motorcycles and modeling its impact on air quality. Journal of the Brazilian Chemical Society, v. 24, n. 3, p. 375-384, 2013. DOI: 10.5935/0103-5053.20130048. Disponível em: http://repositorio.ipen.br/handle/123456789/8454. Acesso em: 31 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.