EPA Air Quality
AIR QUALITY :
Air pollution comes from many different sources: stationary sources such as factories, power plants, and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars, buses, planes, trucks, and trains; and naturally occurring sources such as windblown dust, and volcanic eruptions, all contribute to air pollution. Air Quality can be affected in many ways by the pollution emitted from these sources. These pollution sources can also emit a wide variety of pollutants. The EPA has these pollutants classified as the six principal pollutants (or "criteria pollutants" - as they are also known). These pollutants are monitored by the EPA, as well as national, state and local organizations.
Air pollution comes from many different sources: stationary sources such as factories, power plants, and smelters and smaller sources such as dry cleaners and degreasing operations; mobile sources such as cars, buses, planes, trucks, and trains; and naturally occurring sources such as windblown dust, and volcanic eruptions, all contribute to air pollution. Air Quality can be affected in many ways by the pollution emitted from these sources. These pollution sources can also emit a wide variety of pollutants. The EPA has these pollutants classified as the six principal pollutants (or "criteria pollutants" - as they are also known). These pollutants are monitored by the EPA, as well as national, state and local organizations.