CFC and Ozone Destructuion

CFC s were commonly used as refrgerents and as propellant in spry cans.when these compounds escape into the atmosphere,it reaches the stratosphere intact as they are basically inert compounds.In the stratosphere,the CFC s are broken down by the sunlight releasing chlorine atoms.These chlorine atoms act as a catalyst in the destruction of o3 as shown.The plausible catalytic reactions leading to the destruction of ozone involves chlorine (cl) and (clo) as an intermediatary.

Ozone Layer

Ozone (o3) occurs naturally in the atmosphere.The earth's atmosphere is composed of several layers.We live in the Troposphere where most of the weather occurs;such as rain,snow and clouds.Above the troposphere is the Stratosphere;an important region in which effects such as the ozone Hole and Global warming orginate.