Primary and secondary air toxics from gasoline- alcohol transportation fuels
by Donald L. Singleton, Ahren Britton, Weimin Jiang, Robert McLaren, Serge Lamy
International Journal of Vehicle Design (IJVD), Vol. 20, No. 1/2/3/4, 1998

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

Online publication date: Mon, 18-Aug-2003

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