What are the main sources of nitrogen oxides in the atmosphere?
Lightning and emissions from combustion engines
Localised areas of high temperatures allow atmospheric nitrogen and atmospheric oxygen to react and form nitrogen oxides, such as
- High temperature may result from lightning, causing atmospheric nitrogen and oxygen to react
- High temperature combustion chambers in combustion engines or power plants may result in the formation of nitrogen oxides
- Exhaust typically releases
#NO#and #NO_2#in a ratio of #4:1#