General

General

General nature or nature terms.

Industry: Natural environment

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General

air pollution

Natural environment; General

The presence of contaminants or pollutant substances in the air that interfere with human health or welfare, or produce other harmful environmental effects.

air pollution control device

Natural environment; General

Mechanism or equipment that cleans emissions generated by a source (e.g. an incinerator, industrial smokestack, or an automobile exhaust system) by removing pollutants that would otherwise be ...

air quality criteria

Natural environment; General

The levels of pollution and lengths of exposure above which adverse health and welfare effects may occur.

air quality standards

Natural environment; General

The level of pollutants prescribed by regulations that are not be exceeded during a given time in a defined area.

air sparging

Natural environment; General

Injecting air or oxygen into an aquifer to strip or flush volatile contaminants as air bubbles up through The ground water and is captured by a vapor extraction system.

air stripping

Natural environment; General

A treatment system that removes volatile organic compounds (VOCs) from contaminated ground water or surface water by forcing an airstream through the water and causing the compounds to evaporate.

air toxics

Natural environment; General

Any air pollutant for which a national ambient air quality standard (NAAQS) does not exist (i.e. excluding ozone, carbon monoxide, PM-10, sulfur dioxide, nitrogen oxide) that may reasonably be ...