Air Cleaning
The process of purifying indoor air by removing pollutants such as smog, dust, smoke and other airborne allergens.
Air pollution comes from many different sources such as factories, power plants, dry cleaners, cars, buses, trucks and even windblown dust and wildfires.
Air Pollution Threatens the Health of Millions of Americans
Dear EarthTalk: How many Americans are adversely affected by air pollution and what can we do to improve air quality? "Tom Weaver, Sioux City, IA ...
Air Pollution Prevention
The quality of the air we breathe can have a significant impact on our quality of life. Many communities across the nation have a "serious" air pollution problem.
Air Pollution Episode
A period of abnormally high concentration of air pollutants, often due to low winds and temperature inversion, that can cause illness and death. (See episode, pollution.)
Source: Terms of the Environment ...
Air Quality Index (AQI): A numerical index used for reporting severity of air pollution levels to the public. It replaces the formerly used Pollutant Standards Index (PSI).
AIR POLLUTION INSIDE HOMES
We spend a large part of our lives at home and it does not often cross our mind that the air we are breathing may be polluted. Pollution inside homes is called 'indoor air pollution'.
Air Emissions: Gas emitted into the air from industrial and chemical processes, such as ozone, carbon monoxide, nitrogen oxide, nitrogen dioxide, sulfur dioxide and others.
Air Quality Control Region -- A geographic area within which air pollution is measured; usually a city and its surrounding counties and comprising two or more planning districts.
Air Pollutant - Any substance in air that could, in high enough concentration, harm humans, animals, vegetation or material. Pollutants may include almost any natural or artificial composition of matter capable of being airborne.
Air Pollution
You probably know someone with asthma, or maybe you have this condition yourself. Certain kinds of air pollutants, like ozone, can make asthma and other lung conditions worse.
Air pollution - contaminants or substances in the air that interfere with human health or produce other harmful environmental effects. Read our "What is Air Pollution?" article for further information.
Air Handling Unit - A heating and/or cooling distribution mechanism that channels warm or cool air to different parts of a building.
Air stripping tower
Air stripping removes volatile organic chemicals (such as solvents) from contaminated water by causing them to evaporate.
Air Emissions
Waste gases, vapours and small particles released into air.
Environment ...
Air Pollution: Airborne contaminants or pollutants that adversely affect the environment or human health. A byproduct of the manufacturing process and transportation of goods. Buying eco-friendly products indirectly reduces air pollution.
Air flotation
the separation of solids and oils from liquid effluents by their attachment to very small air bubbles which float the material to the surface ...
Air Cleaning System: A device or combination of devices applied to reduce the concentration of airborne contaminants, such as microorganisms, dusts, fumes, respirable particles, other particulate matter, gases, and/or vapors in air.
air binding. A situation where air enters the filter media. Air is harmful to both the filtration and backwash processes.
air pollution - toxic or radioactive gases or particulate matter introduced into the atmosphere, usually as a result of human activity.
Air Toxics - 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 anticipated to cause cancer; respiratory, ...
air porosity
The portion of the bulk volume of soil that is filled with air at any given time or under a given condition such as specified soil water potential.
air mass : A large volume of air with certain meteorological or polluted characteristics, e,g, a heat inversion or smogginess-while in one location. The characteristics can change as the air mass moves away.
Air heat exchange: Cooling method, involving no water loss, during which a fan blows air past finned tubes carrying recirculating cooling water.
Air Quality Index (AQI) - An accounting or measurement of specified toxic levels of pollutants in the air.
Air Stripping
A treatment system that removes volatile organic compounds (VOCs) from contaminated groundwater or surface water by forcing an airstream through the water and causing the compounds to volatilize to the airsteam, ...
Air Curtain
A method of containing oil spills. Air bubbling through a perforated pipe causes an upward water flow that slows the spread of oil. It can also be used to stop fish from entering polluted water.
Air Exchange Rate ...
air pollution control system
Network of organizations which monitor air pollution.
Group of measures or processes used to minimize or prevent air pollution.
albuminuria
Presence of albumin, derived from plasma, in the urine.
air acoustic ranging sensor A pulsed, acoustic ranging device using the air column in a tube as the acoustic sound path.
A Air Quality Framework Directive
Definition (english only)
Directive 96/62/EC on ambient air quality assessment and management.
Hot Air: Reductions in greenhouse gas emissions, for example, in the former Soviet Union, due to economic collapse, as opposed to intentional efforts to curb emissions.
I ...
Zero Air: Atmospheric air purified to contain less than 0.1 ppm total hydrocarbons.
Zooplankton: Small (often microscopic) free-floating aquatic plants or animals.
Zero Air
Absorption
The penetration of a substance into or through another substance or medium is absorption.
Indoor Air
The breathable air inside a habitable structure or conveyance.
Indoor Air Pollution ...
Indoor Air Pollution: Chemical, physical, or biological contaminants in indoor air.
INDOOR AIR QUALITY (Environmental/Health Article #150)
"BIGGER FAN IN THE BATHROOM" IS NOT THE SOLUTION
Addressing Indoor Air Quality Problems
IS ORGANIC FOOD BETTER? (Health Article #149) ...
Indoor Air Quality (IAQ) - Indoor air that contains no known contaminants at harmful concentrations and with which a substantial majority of the people exposed to the air do not express dissatisfaction.
Laminar Air Flow: Streamlined airflow in which the entire body of air within a designated space moves with uniform velocity in one direction along parallel flow lines.
Air Quality Standards
The level of selected pollutants set by law that may not be exceeded in outside air. Used to determine the amount of pollutants that may be emitted by industry. ...
Air Exchange Rate: The rate at which outside air replaces indoor air in a given space.
Air Pollutants can travel long distances from their source. During this transport, secondary pollutants such as acid rain and ozone are produced. Tree foliage may act as a filter, concentrating the pollution.
- Wet air oxidation and catalytic wet air oxidation (where air is used as the oxidant)
More info on advanced oxidation
Advanced water treatment ...
Healthy Air - Healthy Homes terminology (pdf)
Other Useful Glossary Sites
EPA: Terms of Environment ...
Requiring air or oxygen, used in reference to decomposition processes that occur with the inclusion of oxygen
Alloy ...
AQS is the Air Quality Strategy introduced in the Environmental Act 1995. This strategy sets levels for nine pollutants, to protect human health or the environment.
reaeration (RE-air-A-shun). The introduction of air through forced air diffusers into the lower layers of the reservoir.
Aerenchyma: air-space tissue
Aerial Roots: specialized roots in mangrove plants that are exposed to the air, at least during low tide
Aerobic: refers to the presence of oxygen ...
HAPs Hazardous air pollutants.
Hardness The sum of the divalent cation concentrations expressed as meq/L or mg calcium carbonate per liter [mg CaCO3/L].
A chamber in which air is injected into wastewater to allow microscopic organisms to clean the water (see Activated Sludge).
Algae
The simplest kind of green plants, usually found growing in damp or wet places.
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.
Acid rain:rain that is made more acidic by sulfuric and/or nitric acid in the air, due to the burning of fossil fuels. Active volcano:a volcano that continues to erupt regularly.
carbon dioxide reference gas A mixture of a known quantity of CO2-in air or CO2-in-N2 used to calibrate carbon dioxide analyzers. carbon flux The rate of exchange of carbon between pools (reservoirs).
Emission One or more substances released to the water, air or soil in the natural environment. See also environmental release, pollution and environmental intervention. ...
Relative humidity Very roughly, the dampness of the air; more correctly, the percentage saturation of the air with water vapor; better still, ...
acid precipitation air pollution consisting of all forms of precipitation, including wet and dry particles, that have an acidity lower than normal rainfall (pH 5.6).
acid rain. See acid precipitation.
Each tree absorbs CO₂ from the air and captures the carbon, converting it to wood, roots and soil. If they plant enough trees, that offsets their emissions, and the net balance of emissions is zero.
micrograms per cubic meter (ug/m3 or mcg/cu.m.) A unit that expresses the concentration of a substance in air. A microgram per cubic meter is one one-millionth of a gram of substance per cubic meter of air.
Air Care. Ottawa, Health and Welfare Canada and Energy Mines and Resources Canada: 3; Kevin MacMahon, Arctic Twilight. Toronto, James Lorimer and Company, 1988: 148.
13. Air Care: 4; Andrew Duffy, Warming in a Global Climate.
packed tower aeration A variation of the air stripping treatment process. Water flows down through packing material, while air flows upward to "strip" VOCs from the water. parts per million A measure of concentration of a dissolved substance.
For example, electricity is produced at power stations on the Highveld which burn low-grade coal, causing air pollution impacts in Mpumalanga province due to sulphur dioxide emissions.
 See also: Environment, Water, Environmental, Waste, Reduce
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