|
Friday, 17 November 2006 01:00 |
|
An Ozone (O3) is a colorless gas with a pungent odor, having the molecular form of O3 ,
found in two layers of the atmosphere, the stratosphere (about 90\% of the total atmospheric loading) and the troposphere (about 10\%). Ozone is a form of oxygen found naturally in the stratosphere that provides a protective layer shielding the Earth from ultraviolet radiation's harmful health effects on humans and the environment. In the troposphere, ozone is a chemical oxidant and major component of photochemical smog. Ozone can seriously affect the human respiratory system. See atmosphere, ultraviolet radiation. |
Glossary / Lexicon 
