Automobile emissions control covers all the technologies that are employed to reduce the air pollution-causing emissions produced by automobiles..
Nitrogen oxide
NOx is a generic term for the various nitrogen oxides produced during combustion.
They are believed to aggravate asthmatic conditions, react with the oxygen in the air to produce ozone, which is also an irritant and eventually form nitric acid when dissolved in water.
When dissolved in atmospheric moisture the result can be acid rain which can damage both trees and entire forest ecosystems.
For more information about the topicNitrogen oxide, read the full article at Wikipedia.org, or see the following related articles
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