ABSTRACT
Pollutants are various noxious chemicals and refuse materials that impair the purity of the water, soil, and the atmosphere. The area most affected by pollutants is the atmosphere or air. Air pollution occurs when wastes pollute the air. Artificially or synthetically created wastes are the main sources of air pollution. They can be in the form of gases or particulates which result from the burning of fuel to power motor vehicles and to heat buildings. More air pollution can be found in densely populated areas. The air over largely populated cities often becomes so filled with pollutants that it not only harms the health of humans, but also plants, animals, and materials of construction.
