Air pollution refers to contaminants in a climate that is higher than normal amount of time.Long enough to cause harm to humans, animals, plants or other property may occurnaturally, such as the dust storm. Volcanic activity, earthquakes, forest fires, natural gas, air pollution occurs. By nature, is much less harmful to humans. The origin of the distance and the amount entering the environment. Environment of humans and animals is minimal. If theresult of human activities and pollution from exhaust. The car from the factory of productionof agricultural activities from evaporation. Some of the gas. Caused by solid waste and waste etc.