Title: Primary and secondary air toxics from gasoline- alcohol transportation fuels

Authors: Donald L. Singleton, Ahren Britton, Weimin Jiang, Robert McLaren, Serge Lamy

Addresses: Institute for Chemical Process and Environmental Technology, National, Research Council, Ottawa, Ontario K1A 0R6, Canada. Institute for Chemical Process and Environmental Technology, National, Research Council, Ottawa, Ontario K1A 0R6, Canada. Institute for Chemical Process and Environmental Technology, National, Research Council, Ottawa, Ontario K1A 0R6, Canada. Department of Chemistry and Centre for Atmospheric Chemistry, York University, North York, Ontario M3J 1P3, Canada. Air and Waste Section, Health Protection Branch, Health Canada, Ottawa, Ontario KIA 0L2, Canada

Abstract: In this paper, we compare primary and secondary formation of air toxics and formation of ozone resulting from emissions from gasoline and M85 (85% methanol and 15% gasoline) fuelled vehicles using a photochemical model. Emissions from vehicles representing 1992 technology are taken from the CleanFleet demonstration program in the South Coast Air Basin of California, supplemented with data from the Auto/Oil Air Quality Improvement Research Program. The secondary formation of formaldehyde (H2CO), acetaldehyde (CH3CHO), and peroxyacetyl nitrate (PAN), are based on model scenarios of an ozone episode in southern Ontario, Canada. Also, the results indicate that relative to the gasoline scenarios, the M85 scenarios produce lower ambient concentrations of ozone, CH11CHO, and PAN, and slightly higher concentrations of H2CO for several exposure metrics

Keywords: aldehydes; alternative fuels; methanol; M85; photochemical modelling.

DOI: 10.1504/IJVD.1998.001841

International Journal of Vehicle Design, 1998 Vol.20 No.1/2/3/4, pp.263-273

Published online: 18 Aug 2003 *

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