Polycyclic aromatic hydrocarbons in automotive exhaust emissions and fuels

Report no. 98/55: A comprehensive literature review of polycyclic aromatic hydrocarbons (PAH) in automotive exhaust emissions and fuels has been conducted. Sources and mechanisms of their formation in the internal combustion engine are discussed. Analytical techniques for PAH determination are described and experimental designs to elucidate the sources of PAH are proposed.

PAH emissions reduction techniques employing either emissions control technology or alternative fuels are reviewed. The limitations of current understanding of polycyclic aromatic hydrocarbon formation are discussed and recommendations are made for further work. While the study reports on PAH related to automotive issues, some general information is included on environmental and health concerns.