What chemicals are air pollutants?

Chemicals in air pollution can be solids, liquids or gases. Examples of each are:

Solids:

Soot, inorganic dust, fumes, road dust, metal fines, chaff, sawdust, paint over spray

Liquids:

Aerosols, cooling tower drift, hydrocarbons

Gases:

NOx, SOx acid vapour, carbon dioxide, hydrocarbons, hydrogen sulfide, mercaptans, aldehydes. ketomes, solvents, products of decomposition