Air pollution

Air pollution

Air pollution is the introduction of chemicals, particulates or biological materials into the atmosphere which cause damage to the natural environment and have adverse health affects on organisms.

Industry: Pollution control

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Air pollution

light-duty vehicle (LDV)

Pollution control; Air pollution

Any motor vehicle with a gross vehicle weight of 6000 pounds or less.

industrial source

Pollution control; Air pollution

Any of a large number of sources -- such as manufacturing operations, oil and gas refineries, food processing plants, and energy generating facilities -- that emit substances into the atmosphere.

non-industrial source

Pollution control; Air pollution

Any of a large number of sources -- such as mobile, area-wide, indirect, and natural sources -- which emit substances into the atmosphere.

chlorofluorocarbons (CFCS)

Pollution control; Air pollution

Any of a number of substances consisting of chlorine, fluorine, and carbon. CFCs are used for refrigeration, foam packaging, solvents, and propellants. Visit the Cal/EPA website for more information.

visibility reducing particles (VRP)

Pollution control; Air pollution

Any particles in the atmosphere that obstruct the range of visibility.

indirect source

Pollution control; Air pollution

Any facility, building, structure, or installation, or combination thereof, which generates or attracts mobile source activity that results in emissions of any pollutant (or precursor) for which ...

Any material, except pure water, that exists in the solid or liquid state in the atmosphere. The size of particulate matter can vary from coarse, wind-blown dust particles to fine particle combustion ...