Reducing Nitrogen Oxides and VOC Emissions

    As Box 1 indicates, any fossil-fuel combustion will produce some NO. This NO can then be converted to NO₂ if volatile organic hydrocarbons are also present, and in turn increases ozone production in the lower atmosphere.  At the present time, there are essentially two strategies for reducing NO emissions:  1) removing pollutants such as NO from the post-combustion emission gases, and 2) finding alternatives to power cars that do not require the combustion of fossil fuels.