Air pollution

Air pollution is the introduction of particulates, biological molecules, and many harmful substances into Earth's atmosphere, causing diseases, allergies, death to humans, damage to other living organisms such as animals and food crops, or the natural or built environment.

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 * One metric ton of carbon monoxide can pollute 800 cubic meters of air
 * One metric ton of asbestos can pollute 625 cubic decimeters of air
 * One metric ton of can pollute 50,000/99 cubic meters of air
 * One metric ton of can pollute 50/567 cubic meters of air
 * One cubic foot of natural gas has 1/625 ounces of air pollution
 * One cubic yard of natural gas has 27/10,000 pounds of air pollution
 * One cubic mile of natural gas has 4,599,936/625 tons of air pollution

One ton of air pollution is generated from 20560000010 btus of energy