April 17th, 2009 20,000 Liters of Air Pollution Per Day?
Air pollution comes from numerous sources including factories, buses, motor vehicles, power plants, wildfires, and dust. Any contamination in the air can be considered an air pollutant. Air pollution can be damaging to humans, vegetation, the eco-system and the ozone layer. The average human inhales 20,000 liters of air per day; this makes it very likely that that person will come in contact with pollutants at some point.