Ambient air

Ambient Air - Open air, surrounding air, or outside air.
ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning.
ASHRAE 55-1992 -ASHRAE standard: Thermal Environmental Conditions for Human Occupancy.

Ambient Air - outside air; any portion of the atmosphere not confined by walls and a roof
Aromatic - a hydrocarbon that consists of one or more benzenoid rings (i. e., benzene) ...

Ambient air
Refers to the surrounding air. Generally, ambient air refers to air outside and surrounding an air pollution source location. Often used interchangeably with "outdoor air." ...

Ambient Air - Any unconfined portion of the atmosphere open air, surrounding air.
Ambient Air Quality Standards - (See Air Quality Standards.) ...

Ambient Air Quality Standards (AAQS): Health- and welfare-based standards for outdoor air which identify the maximum acceptable average concentrations of air pollutants during a specified period of time.

ambient air quality standards See Criteria Pollutants and National Ambient Air Quality Standards. ...

A ambient air
Definition (english only)
The air occurring at a particular time and place outside of structures. Often used interchangeably with 'outdoor air'.

National Ambient Air Quality Standards (NAAQS)
National Emissions Standards for Hazardous Air Pollutants (NESHAPS)
National Environmental Performance Partnership Agreements
National Estuary Program
National Municipal Plan ...

National ambient air quality standards designed to protect welfare, including effects on soils, water, crops, vegetation, man-made (anthropogenic) materials, animals, wildlife, weather, visibility, and climate; damage to property; ...

National Ambient Air Quality Standards (NAAQS): Standards established by EPA that apply for outdoor air throughout the country. (see Criteria Pollutants, State Implementation Plans, Emissions Trading) ...

National ambient air quality standards Federal standards for the minimum ambient air quality needed to protect public health and welfare.
Nitrogen oxides All oxides of nitrogen except nitrous oxide.

National Ambient Air Quality Standards (NAAQS) - Sets the levels of air quality for the United States , in the Code of Federal Regulations (40 CFR ß50.2), to protect the population's health.

Air Toxics Any air pollutant for which a National Ambient Air Quality Standard (NAAQS) does not exist that may reasonably be anticipated to cause serious or irreversible chronic or acute health effects in humans.

Ambient air usually means outdoor air (as opposed to indoor air). Analyte A chemical for which a sample (such as water, air, blood, urine or other substance) is tested.

Runoff Agricultural Waste Agronomy Air Cleaning Air Pollution Algae Algae Biodiesel Algal Bloom Alkalinity Alternative Energy Alternative Fuels Alternative Natural Materials Ambient Ambient Air ...

ambient air Any unconfined portion of the atmosphere; the outside air. anadromous Migratory fish that ascend rivers from the sea to spawn, like salmon.

Criteria Pollutants: The 1970 amendments to the Clean Air Act required EPA to set National Ambient Air Quality Standards for certain pollutants known to be hazardous to human health.

Secondary Standards: National ambient air quality standards designed to protect welfare, including effects on soils, water, crops, vegetation, man-made (anthropogenic) materials, animals, wildlife, weather, visibility, and climate; ...

Hazardous Air Pollutants - Air pollutants which are not covered by ambient air quality standards but which, as defined in the Clean Air Act, may reasonably be expected to cause or contribute to irreversible illness or death.

Ventilated Façade - A special type of curtain wall consisting of two glazed facades separated by gap through which ambient air is allowed to flow.

Short Circuiting: The entry of ambient air into an extraction well without first passing through the contaminated zone.

Nitrogen Oxide (NOx) - The result of photochemical reactions of nitric oxide in ambient air.

Ambient
Surrounding (for example, ambient air).
Anaerobic
Requiring the absence of oxygen [compare with aerobic].

Ambient - Surrounding. Ambient air usually means outdoor air (as opposed to indoor air).

Air pollutants which are not covered by ambient air quality standards but which, as defined in the Clean Air Act, may reasonably be expected to cause or contribute to irreversible illness or death.

Powered Air-purifying Respirator (PAPR): An air-purifying respirator that uses a blower to force the ambient air through air-purifying elements to the inlet covering.
Power-Operated Hoists: A hoist that is powered by other than human energy.

The Clean Air Act says an "air pollutant" is any "physical, chemical, biological, [or] radioactive substance or matter which is emitted into or otherwise enters the ambient air." ...

Reasonable Further Progress- Annual incremental reductions in air pollutant emissions as reflected in a State Implementation Plan that EPA deems sufficient to provide for the attainment of the applicable national ambient air quality standards by the ...

See also: Air, Standards, National, Pollutant, Environment