Quantification of motor vehicle emission factors from on road measurements


Autoria(s): Ferreira, Luis; Jamriska, Milan; McGregor, Fraser; Morawska, Lidia; Thomas, Stephen
Contribuinte(s)

Winch, B

Data(s)

2003

Resumo

Assessment and prediction of the impact of vehicular traffic emissions on air quality and exposure levels requires knowledge of vehicle emission factors. The aim of this study was quantification of emission factors from an on road, over twelve months measurement program conducted at two sites in Brisbane: 1) freeway type (free flowing traffic at about 100 km/h, fleet dominated by small passenger cars - Tora St); and 2) urban busy road with stop/start traffic mode, fleet comprising a significant fraction of heavy duty vehicles - Ipswich Rd. A physical model linking concentrations measured at the road for specific meteorological conditions with motor vehicle emission factors was applied for data analyses. The focus of the study was on submicrometer particles; however the measurements also included supermicrometer particles, PM2.5, carbon monoxide, sulfur dioxide, oxides of nitrogen. The results of the study are summarised in this paper. In particular, the emission factors for submicrometer particles were 6.08 x 1013 and 5.15 x 1013 particles per vehicle-1 km-1 for Tora St and Ipswich Rd respectively and for supermicrometer particles for Tora St, 1.48 x 109 particles per vehicle-1 km-1. Emission factors of diesel vehicles at both sites were about an order of magnitude higher than emissions from gasoline powered vehicles. For submicrometer particles and gasoline vehicles the emission factors were 6.08 x 1013 and 4.34 x 1013 particles per vehicle-1 km-1 for Tora St and Ipswich Rd, respectively, and for diesel vehicles were 5.35 x 1014 and 2.03 x 1014 particles per vehicle-1 km-1 for Tora St and Ipswich Rd, respectively. For supermicrometer particles at Tora St the emission factors were 2.59 x 109 and 1.53 x 1012 particles per vehicle-1 km-1, for gasoline and diesel vehicles, respectively.

Formato

application/pdf

Identificador

http://eprints.qut.edu.au/24478/

Publicador

Clean Air Society of Australia and New Zealand

Relação

http://eprints.qut.edu.au/24478/1/c24478.pdf

Ferreira, Luis, Jamriska, Milan, McGregor, Fraser, Morawska, Lidia, & Thomas, Stephen (2003) Quantification of motor vehicle emission factors from on road measurements. In Winch, B (Ed.) Proceedings of National Clean Air Conference, 23-27 November 2003, Newcastle City Hall, New South Wales.

Direitos

Copyright 2003 Please consult the authors.

Fonte

Faculty of Built Environment and Engineering; Faculty of Science and Technology

Palavras-Chave #050206 Environmental Monitoring
Tipo

Conference Paper