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Chemistry

The Chemistry of the Ozone Layer and Its Depletion

Quick fact

A single chlorine atom from a CFC molecule can destroy up to 100,000 ozone molecules before it is removed from the stratosphere, meaning a single can of CFC-based aerosol can contribute to the depletion of a whole layer of ozone.

Why this is interesting

Every time you use an old can of spray paint or an ancient refrigerator, you might be releasing a chemical that can destroy 100,000 ozone molecules. The invisible shield that protects you from UV radiation is disappearing—why?