Photochemical smog pollution does not contain.

Photochemical smog is a mixture of compounds(pollutants) that are formed by the action of sunlight on nitrogen oxides and certain hydrocarbons, creating haze above the cities. It takes place in summer.

Ozone, nitrogen dioxide, and PAN(peroxyacetyl nitrate) are present in photochemical smog.

Carbon dioxide is not present in photochemical smog, it is a greenhouse gas that is responsible for global warming.

Hence the correct answer is A i.e. Carbon dioxide.