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Class I Ozone-depleting Substances

Chemical Name Lifetime, in years ODP2 (WMO 2011) ODP1 (Montreal Protocol) GWP5 (AR4) CAS Number
Group I (from section 602 of the CAA)
CFC-11 (CCl3F) Trichlorofluoromethane 45 1 1 4750 75-69-4
CFC-12 (CCl2F2) Dichlorodifluoromethane 100 0.82 1 10900 75-71-8
CFC-113 (C2F3Cl3) 1,1,2-Trichlorotrifluoroethane 85 0.85 0.8 6130 76-13-1
CFC-114 (C2F4Cl2) Dichlorotetrafluoroethane 190 0.58 1 10000 76-14-2
CFC-115 (C2F5Cl) Monochloropentafluoroethane 1020 0.5 0.6 7370 76-15-3
Group II (from section 602 of the CAA)
Halon 1211 (CF2ClBr) Bromochlorodifluoromethane 16 7.9 3 1890 353-59-3
Halon 1301 (CF3Br) Bromotrifluoromethane 65 15.9 10 7140 75-63-8
Halon 2402 (C2F4Br2) Dibromotetrafluoroethane 20 13.0 6 1640 124-73-2
Group III (from section 602 of the CAA)
CFC-13 (CF3Cl) Chlorotrifluoromethane 640 1 1 14420 75-72-9
CFC-111 (C2FCl5) Pentachlorofluoroethane 1 1 354-56-3
CFC-112 (C2F2Cl4) Tetrachlorodifluoroethane 1 1 76-12-0
CFC-211 (C3FCl7) Heptachlorofluoropropane 1 1 422-78-6
CFC-212 (C3F2Cl6) Hexachlorodifluoropropane 1 1 3182-26-1
CFC-213 (C3F3Cl5) Pentachlorotrifluoropropane 1 1 2354-06-5
CFC-214 (C3F4Cl4) Tetrachlorotetrafluoropropane 1 1 29255-31-0
CFC-215 (C3F5Cl3) Trichloropentafluoropropane 1 1 4259-43-2
CFC-216 (C3F6Cl2) Dichlorohexafluoropropane 1 1 661-97-2
CFC-217 (C3F7Cl) Chloroheptafluoropropane 1 1 422-86-6
Group IV (from section 602 of the CAA)
CCl4 Carbon tetrachloride 26 0.82 1.1 1400 56-23-5
Group V (from section 602 of the CAA)
Methyl Chloroform (C2H3Cl3) 1,1,1-trichloroethane 5 0.16 0.1 146 71-55-6
Group VI (listed in the Accelerated Phaseout Final Rule)
Methyl Bromide (CH3Br) 0.8 0.66 0.7 5 74-83-9
Group VII (listed in the Accelerated Phaseout Final Rule)
CHFBr2 1 1
HBFC-12B1(CHF2Br) 0.74
CH2FBr 0.73 0.73
C2HFBr4 0.3-0.8 0.3-0.8
C2HF2Br3 0.5 - 1.8 0.5-1.8
C2HF3Br2 0.4 - 1.6 0.4-1.6
C2HF4Br 0.7 - 1.2 0.7-1.2
C2H2FBr3 0.1-1.1 0.1 - 1.1
C2H2F2Br2 0.2-1.5 0.2 - 1.5
C2H2F3Br 0.7-1.6 0.7 - 1.6
C2H3FBr2 0.1-1.7 0.1 - 1.7
C2H3F2Br 0.2-1.1 0.2 - 1.1
C2H4FBr 0.07-0.1 0.07-0.1
C3HFBr6 0.3-1.5 0.3 - 1.5
C3HF2Br5 0.2-1.9 0.2 - 1.9
C3HF3Br4 0.3-1.8 0.3 - 1.8
C3HF4Br3 0.5-2.2 0.5 - 2.2
C3HF5Br2 0.9-2.0 0.9 - 2.0
C3HF6Br 0.7-3.3 0.7 - 3.3
C3H2FBr5     0.1 - 1.9    
C3H2F2Br4 0.2-2.1 0.2 - 2.1
C3H2F3Br3 0.2-5.6 0.2 - 5.6
C3H2F4Br2 0.3-7.5 0.3 - 7.5
C3H2F5Br 0.9-14 0.9 - 1.4
C3H3FBr4 0.08-1.9 0.08-1.9
C3H3F2Br3 0.1-3.1 0.1 - 3.1
C3H3F3Br2 0.1-2.5 0.1 - 2.5
C3H3F4Br 0.3-4.4 0.3 - 4.4
C3H4FBr3 0.03-0.3 0.03-0.3
C3H4F2Br2 0.1-1.0 0.1 - 1.0
C3H4F3Br 0.07-0.8 0.07-0.8
C3H5FBr2 0.04-0.4 0.04-0.4
C3H5F2Br 0.07-0.8 0.07-0.8
C3H6FBr 0.02-0.7 0.02-0.7
Group VIII (from the Chlorobromomethane Phaseout Final Rule)
CH2BrCl Chlorobromomethane 0.37 0.12 0.12
Why are there multiple values given for the ODPs and GWPs?
The numbers in the “ODP1” column are from the Montreal Protocol. Some numbers have been updated as per amendments to the protocol. Data in the “ODP2” column come from WMO’s Scientific Assessment of Ozone Depletion: 2010. ODP values listed are semi-empirical and can be found in Table 5-1 of the document. All GWP values represent global warming potential over a 100-year time horizon. The numbers are from the IPCC Fourth Assessment Report: Climate Change 2007. The values listed are for direct radiative forcing and can be found in Table 2.14 of the document.

References


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