Ozonation

The application of ozone to water, wastewater, or air, generally for the purposes of disinfection or odor control.

Ozone

(O3)

1. An oxygen molecule with three oxygen atoms. The stratosphere ozone layer, which is a concentration of ozone molecules located at 10 to 50 kilometers above sea level, is in a state of dynamic equilibrium. Oxygen molecules absorb ultraviolet light to form ozone which, in turn, decomposes back to oxygen. These processes absorb most of the ultraviolet light from the sun, shielding life from the harmful effects of UV radiation. Ozone is normally present at ground level in low concentrations. In cities where high level of air pollutants is present, the action of the sun's ultraviolet light can, through a complex series of reactions, produces harmful concentrations of the ground level ozone. The resulting air pollution is known as photochemical smog.
2. A faintly blue form of oxygen produced by the silent discharge of electricity into the air. Ozone is very harmful to tires.

Also see

• Tropospheric ozone

Ozone checking

Cracks or hard spots usually found on the Sidewalls of tires. Caused by the action of the ozone in the air on the rubber. This condition is normal, but could be dangerous on tires that are more than 65,000 km (40,000 miles) old or have been exposed to the ozone created by electrical machinery.

Ozone compound

Rubber compounded with certain chemicals to retard ozone damage. Properly this should be called anti-ozone compound.

Ozone precursors

Chemical compounds, such as carbon monoxide, Methane, nonmethane hydrocarbons, and nitrogen oxides, which in the presence of solar radiation react with other chemical compounds to form ozone.

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