Question- What are the chemical constituents of diesel exhaust?
Answer: The cited article reports the “major constituents” (> 1%) of diesel exhaust include water, carbon dioxide, nitrogen, oxygen, carbon monoxide, particulates and hydrogen. These authors report the “minor constituents (< 1%) include oxides of sulfur, oxides of nitrogen, aldehydes, organic acids, alcohols, and PAH hydrocarbons. (Elliott MA et al. The composition of exhaust gases from diesel, gasoline and propane powered motor coaches. 1955 J APCA 5(2):103-108)