What air pollution is and its rate of spreading worldwide?

Air pollution is a mixture of solid particles and gases in the air. Car emissions, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a major part of air pollution in cities. When ozone forms air pollution, it's also called smog.

i really dont know but i will try okay.

so i think u would just add all them up and get your answer..