CFC (chlorofluorocarbon), including freon, is used as the
aerosol propellant. An aerosol is a suspension in the gaseous form of
solid or liquid particles. When these compounds reach the stratosphere, UV
light affects them and they release chlorine atoms. Chlorine atoms are capable
of breaking down ozone molecules. With fewer ozone molecules, the ozone layer
becomes thinner and harmful UV light passes through it causing many health problems, such as skin cancer.
