OZONE is a 3-atom oxygen form of oxygen found
in both the troposphere and the stratosphere. Ozone in the stratosphere occurs naturally
and shields the earthÕs surface from harmful
ultraviolet radiation. Ozone in
the troposphere
is a pollutant associated with automobile
exhaust.
Ozone
can be destroyed in the stratosphere by CFCs,
a chemical used in air conditioners, and aerosol
spray cans.