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

peak levels

Pollution control; Air pollution

A level of airborne pollutants that is much higher than average. They can occur over a short period of minutes or hours in response to sudden releases, or they can occur due to a longer term build-up ...

coating

Pollution control; Air pollution

A layer of any substance such as paint, lacquer, or varnish applied over a surface for protection. For more information, please see our coatings website.

attainment area

Pollution control; Air pollution

A geographical area identified to have air quality as good as, or better than, the national and / or California ambient air quality standards (NAAQS / CAAQS). An area may be an attainment area for ...

low emission vehicle (LEV)

Pollution control; Air pollution

A vehicle that meets the ARB's low emission vehicle standards. For more information, please go to our low emission vehicle website.

diesel engine

Pollution control; Air pollution

A type of internal combustion engine that uses low-volatility petroleum fuel and fuel injectors and initiates combustion using compression ignition (as opposed to spark ignition that is used with ...

no-observed-effect-level (NOEL)

Pollution control; Air pollution

A term used in risk assessment. An exposure level at which there are no statistically or biologically significant difference or severity of ant effect between an exposed population and a comparable ...

emissions trading

Pollution control; Air pollution

A rule-making concept whereby approval of a new or modified stationary source of air pollution is conditional on the reduction of emissions from other existing stationary sources of air pollution. ...