Want this question answered?
Yes.
ssadf
Any natural process by which contaminants are removed from the atmosphere.
particulate matter
pollution
primary pollution
A lot of substances are not air pollutant. You must specify which kind of substance do you refer as a probable air pollutant.
yes, when it is released in large amounts than the normal natural percentage in air
Pollutant
no
"lead" is the air pollutant that decreased most in 1970 to 1991.
Ozone is considered to be the most common air pollutant in the United States.