A small fleet of light-duty gasoline fueled vehicles were procured and tested over light-duty vehicle emissions test cycles. The project consisted of a pilot study where three vehicles were tested over two test cycles - the light duty Federal Test Procedure and the ARB's 'Unified Cycle' (UC), two fuels - a pre-1992 California gasoline and a California Phase 2 reformulated gasoline, and three technology types - non-catalyst, carbureted with oxidation catalyst, and multi-point fuel injection with three-way catalyst. The main study consisted of 24 vehicles tested over the UC. In addition to total mass emissions, size-segregated mass emissions for 10, 2.5 and 1.0 micrometers were measured. Chemical analyses were performed on a subset of ten vehicles and included elemental carbon/organic (EC/OC) splits, elements and ions, and polycyclic aromatic hydrocarbons (PAHs) and hopanes and steranes. In general, results were consistent with results for similar studies performed for the Coordinating Research Council.
Characterization of Particulate Emissions from Gasoline-Fueled Vehicles
1998
136 pages
Report
No indication
English
Air Pollution & Control , Reciprocation & Rotating Combustion Engines , Road Transportation , Environment , Vehicle air pollution , Particulates , Exhaust emission tests , Air pollution monitoring , Gasoline , Carbon monoxide , Particle size distribution , Air pollution sampling , Chemical analysis , Chemical composition , Fuel cycle , Federal test procedure , Tables(Data) , California , Ethanol fuels , Polycyclic aromatic hydrocarbons , Fuel composition , Carbons , Exhaust emission measurement , Light duty vehicles , Hopanes , Steranes
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