What is Ozone Depleting Potential (ODP) ?

Ozone Depleting Potential (ODP) is a measure of how much damage a chemical can cause the ozone layer when being compared to a similar mass of trichlorofluoromethane (CFC – 11)

trichlorofluoromethane (CFC – 11) has an Ozone Depleting Potential (ODP) of 1.0 and is used as the base figure for measuring.