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

exceedance

Pollution control; Air pollution

A measured level of an air pollutant higher than the national or state ambient air quality standards. (See also NAAQS and CAAQS. )

lubricity

Pollution control; Air pollution

A measure of the ability of an oil or other compound to lubricate (reduce friction) between two surfaces in contact.

air quality simulation model

Pollution control; Air pollution

A mathematical relationship between emissions and air quality which simulates on a computer the transport, dispersion, and transformation of compounds emitted into the air. For more information, ...

A major component of an indirect source control program which applies to new and modified indirect sources. Strategies for indirect source review include permit programs, review and comment on new ...

toxic hot spot

Pollution control; Air pollution

A location where emissions from specific sources may expose individuals and population groups to elevated risks of adverse health effects -- including but not limited to cancer -- and contribute to ...

air quality management district (AQMD)

Pollution control; Air pollution

A group of counties or portions of counties, or an individual county specified in law with authority to regulate stationary, indirect, and area sources of air pollution within the region and governed ...

oxides of nitrogen

Pollution control; Air pollution

A general term pertaining to compounds of nitric oxide (NO), nitrogen dioxide (NO 2 ) and other oxides of nitrogen. Nitrogen oxides are typically created during combustion processes, and are major ...