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|AIR |Every day, the average person inhales about 20,000 liters of air.  Every time we breathe, we risk inhaling dangerous |
| |chemicals that havefound their way into the air. |
|PO |Air pollution includes all contaminants found in the atmosphere.  These dangeroussubstances can be either in the form |
|LU |of gases or particles. |
|TI |Air pollution canbe found both outdoors and indoors.  Pollutants can be trapped inside buildings, causing indoor |
|ON |pollution that lasts for a long time.|
| |The sources of air pollution are both natural and human-based.  As one might expect, humans have been producing |
| |increasingamounts of pollution as time has progressed, and they now account for the majority of pollutants released |
| |into the air.|
| |Air pollution has been a problem throughout history.  Even in Ancient Romepeople complained about smoke put into the |
||atmosphere. |
| |The effects of air pollution are diverse and numerous.  Air pollution canhave serious consequences for the health of |
| |human beings, and also severely affects natural ecosystems. |
||Because it is located in the atmosphere, air pollution is able to travel easily.  As a result, air pollution is a global|
| |problem and has been the subject of global cooperation and conflict...