Oxides of Nitrogen: Sources of emissions
Industry sources
Industrial sources of oxides of nitrogen are electricity supply, mining, oil and gas extraction, manufacturing industries and petroleum manufacturing.
Diffuse sources, and industry sources included in diffuse emissions data
A variety of agricultural (both cultivation and animal feeding) and forestry (both "burn-offs" and clearfelling) activities increase the rate of natural processes that produce oxides of nitrogen. Fuel burning activities, such as for heating, and cigarette smoking are also diffuse sources of oxides of nitrogen.
Natural sources
The biological cycling of nitrogen includes processes that produce nitric oxide and nitrous oxide as intermediates.
Thermal processes in the atmosphere (during lightning or bushfires/wildfires) produce oxides of nitrogen.
Transport sources
Oxides of nitrogen are present in the exhausts of all vehicles, including motor vehicles, lawn mowers, shipping/boating, aeroplanes and railways.
Consumer products
Nitrate containing fertilisers contain oxides of nitrogen.
Key
Links to an another web site
Opens a pop-up window
