Nitrogen Oxides (NOx)

A criteria air pollutant. Nitrogen oxides are produced from burning fuels, including gasoline and coal. Nitrogen oxides react with volatile organic compounds in heat and sunlight to form OzoneA highly reactive gas formed in the atmosphere – in the presence of sunlight and heat – by a complex series of photochemical reactions involving oxides of nitrogen and organic gases. National Ambient Air Quality Standards have been established for ozone. More. Nitrogen oxides are also major components of acid rain.