The earth's atmosphere, at or near sea level, consists approximately of 78 percent nitrogen, 21 percent oxygen and 1 percent other gases. If it were possible to remain in this state, 100 percent clean air would result. However, many varied sources allow other gases and particulates to mix with the clean air, causing our atmosphere to become unclean or polluted. Some of these pollutants are visible while others are invisible, with each having the capability of causing distress to the eyes, ears, throat, skin and respiratory system. Should these pollutants become concentrated in a specific area and under certain conditions, death could result due to the displacement or chemical change of the oxygen content in the air. These pollutants can also cause great damage to the environment and to the many man made objects that are exposed to the elements. To better understand the causes of air pollution, the pollutants can be categorized into 3 separate types, natural, industrial and automotive.
Dont forget to read this help sections:----
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Automotive Pollutants?
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TEMPERATURE INVERSION?
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HEAT TRANSFER?
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Industrial Pollutants?
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Natural Pollutants?
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