CFC's

• also known as chlorofluorocarbons
• initiation:

  CF2Cl2 -> 'CF2Cl + 'Cl

  UV
• propagation:

  'Cl + O3 -> O2 + 'ClO

  'ClO + O -> O2 + 'Cl
• overall equation:

  O3 + O -> 2O2
• the three sources of CFC's in the atmosphere are refrigerants, air conditioning units and aerosol