VIEW: Air Pollution (BrainPop)

Air Pollution

Pollution-free air is composed primarily of nitrogen and oxygen, with trace amounts of carbon dioxide, argon, and water vapor. Air pollution is considered to be any substance released into the atmosphere in harmful amounts. Air pollution can be dust, fumes, chemicals, or microorganisms. Air pollution is likely the most widespread and noticeable type of pollution.

Some major air pollutants include:

1. Particulates
2. Sulfur Oxides
3. Nitrogen Oxides
4. Tropospheric (ground-level or low-level) ozone
5. Acid Rain
6. Greenhouse Gases

In the past, chlorofluorocarbons (CFCs) were considered a major pollutant as well; however, adherence to international laws and regulations banning the use of CFC's has reduced their impact on the global atmosphere.

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