what is the composition of the photochemical smoke
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The main components of photochemical smog are nitrogen oxides, Volatile Organic Compounds (VOCs), tropospheric ozone, and PAN (peroxyacytyl nitrate). All of these substances are very chemically reactive and are irritating to humans and other living things. They tend to smell bad, degrade materials, cause respiratory problems and illnesses, and irritate the eyes and other mucous membranes.
Some of the compounds in photochemical smog form when energy from sunlight transforms various pollutants into other unpleasant substances. For example, PAN forms when VOCs that have been altered into other chemicals by photodissociation combine with nitrogen dioxide.
Some of the compounds in photochemical smog form when energy from sunlight transforms various pollutants into other unpleasant substances. For example, PAN forms when VOCs that have been altered into other chemicals by photodissociation combine with nitrogen dioxide.
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