Fossil fuels consisting mainly of carbon, hydrogen, nitrogen, sulfur, and oxygen produce the following products during combustion:
The primary pollutants are Carbon Monoxide (CO), Carbon Dioxide (CO2), Sulfur (SO2), Nitrogen Dioxide (NOx), Nitric Oxide (N2O), Volatile organic compounds (VOCs), and Hydrocarbons (HCs).
The particulate matter produced are Course particles less than 10 microns (PM10), Fine particles less than 2 microns (PM2.5), and Ammonia (NH3).