- photochemicalsmog
-
photochemical smog
n.
Air pollution produced by the action of sunlight on hydrocarbons, nitrogen oxides, and other pollutants.
* * *
Universalium. 2010.
photochemicalsmog
Look at other dictionaries:
HC — Acronym for unburned hydrocarbons. They are at their worst with very rich or very lean mixtures. They combine with NOx in sunlight to form photochemicalsmog … Dictionary of automotive terms
NOx — Oxides of nitrogen. They are at their worst when combustion is most efficient. They are produced because the air is 78 percent nitrogen. Combines with HC in sunlight to form photochemicalsmog. NOx emissions can be reduced by lowering peak… … Dictionary of automotive terms
