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Photochemical smog mechanism, ill-effects and control.
The mechanism of photochemical smog.
There, gridlock occurs now on an almost daily basis and the city swelters under an ever present cloak of photochemical smog.
The effect that we call acid rain is a photochemical smog created by a combination of sulphur dioxide, nitrogen oxide, hydrocarbons and ozone.
This is a secondary pollutant formed when nitrogen oxides mix with hydrocarbons from vehicle exhausts in the presence of sunlight—the infamous photochemical smog.
There is no evidence to suggest that photochemical smog is a significant hazard in this country.
There can be ozone but no photochemical smog.
Substitutes also include propane and butane, which may contribute to photochemical smog in a very small way.
Of greater importance is the reduction, which they cause, in visibility and the formation of photochemical smog.
Finally, there are the unburnt hydrocarbons, which, in combination with nitrogen oxides, have been identified as a major cause of acid rain and photochemical smog.
There is equal worry about photochemical smog, especially in cities, as a result of diesel emissions.
Photochemical smog is one of the greatest environmental hazards faced by the capital city.
It may be asked what exactly photochemical smog is.
The same problem occurs with photochemical smog, except that in country areas the precursors would probably be widely dispersed before it developed.
They have an effect also on photochemical smog.
