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

Photochemical reaction

Pollution control; Air pollution

A term referring to chemical reactions brought about by the light energy of the sun. The reaction of nitrogen oxides with hydrocarbons in the presence of sunlight to form ozone is an example of a ...

Catalyst

Pollution control; Air pollution

A substance that can increase or decrease the rate of a chemical reaction between the other chemical species without being consumed in the process.

Oxidant

Pollution control; Air pollution

A substance that brings about oxidation in other substances. oxidising agents (oxidants) contain atoms that have suffered electron loss. In oxidising other substances, these atoms gain electrons. ...

California Air Pollution Control Officers Associat

Pollution control; Air pollution

A nonprofit association of the air pollution control officers from all 35 air quality agencies throughout California. CAPCOA was formed in 1975 to promote clean air and to provide a forum for sharing ...

Octane number

Pollution control; Air pollution

A numerical measure of the antiknock properties of gasoline used as a motor fuel. The higher the octane number, the greater the antiknock properties.

Pollutant standards index (PSI)

Pollution control; Air pollution

A numerical index formerly used for reporting severity of air pollution levels to the general public. The PSI incorporated the five criteria pollutants -- ozone, PM10, carbon monoxide, sulphur ...