3.3.3.3 ozone depletion

• what does ozone in the atmosphere absorb?

  UV radiation
• what do CFCs do?

  absorb UV radiation to break down the carbon-halogen bond to form free radicals that can catalyse ozone depletion
• ozone depletion mechanism

  
• CFC-free solvents are now being produced to prevent them entering the atmosphere
• this helps minimise ozone depletion and global warming