Ozone depleting potential

Published by Norwegian Environment Agency

The capacity for depleting the ozone layer, or ozone-depleting potential (ODP), varies from one chemical to another. The ODP of a substance indicates its capacity for depleting the ozone layer relative to CFC 11. If a substance's ODP is 10, it has ten times the capacity of CFC 11 to deplete the ozone layer.

CFC Klorfluorkarboner   ODP
CFC-11 (CFCl3) 1.0
CFC-12 (CF2 Cl2) 1.0
CFC-113 (C2F3 Cl3) 0.8
CFC-114 (C2F4Cl2) 1.0
CFC-115 (C2F5Cl) 0.6
Halons   ODP
HALON 1211 (CF2BrCl) 3.0
HALON 1301 (CF3Br) 10.0
HALON 2402 (C2F4Br2) 6.0
Other CFCs: 10 substances   ODP
Eks: CF3Cl (CFC-13) 1.0
CCl4 (carbontetrachloride) 1.1
C2H3Cl3 (methyl chloroform) 0.1
HCFC   ODP
CHFCl2 (HCFC-21) 0.04
CHF2Cl (HCFC-22) 0.055
CH2FCl (HCFC-31) 0.02
C2HF3Cl2 (HCFC-123) 0.02
C2HF4Cl (HCFC-124) 0.022
C2H2F3Cl (HCFC-133) 0.02-0.06
CH3CFCl2 (HCFC-141b) 0.11
CH3CF2Cl (HCFC-142b) 0.065
C3HF5Cl2 (HCFC-225) 0.02-0.07
CF3CF2CHCl2 (HCFC-225ca) 0.025
CF2ClCF2CHClF (HCFC-225cb) 0.033

HBFCs

34 substances
(No registered consumption in Norway)

0.02 - 1
Methyl bromide ODP

CH3Br

0.4 - 0.6
Bromchloromethane ODP

CH2BrCl
(New substance in the Montreal Protocol, included in 1999)

0.15