Emissions to air > NO_X

NO_X - Nitrogenious oxides

Nitrogenious oxides (NO_X) include NO, NO₂ and other oxides of nitrogen. The main NO_X, Nitrogen dioxide (NO₂) is a reddish brown, highly reactive gas that is formed in the ambient air through the oxidation of nitric oxide (NO). The major sources of man-made NO_X emissions are high-temperature combustion processes.

NO_X plays a major role in the formation of ground level Ozone by the reaction with VOC under the influence of sunlight. Nitrogen oxides also contribute to the formation of acid rain and to a wide range of environmental effects, including potential changes in the composition and competition of some species of vegetation in wetland and terrestrial systems, visibility impairment, acidification of freshwater bodies, eutrophication (i.e., explosive algae growth leading to a depletion of oxygen in the water) of estuarine and coastal waters and increases in levels of toxins harmful to fish and other aquatic life. NO_X also presents a serious health threat.

Environmental impact

Regulations

Reduction methods

Calculations

References