['Air Programs']

['Chlorofluorocarbons', 'Ozone Layer Protection', 'Ozone Depleting Substances']

04/08/2025

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Air Programs - Chlorofluorocarbons

Appendix I to Subpart A of Part 82—Global Warming Potentials (mass basis), referenced to the Absolute GWP for the adopted carbon cycle model CO2 decay response and future CO2 atmospheric concentrations held constant at current levels.

RegSense Ozone Depleting Substances CFR Regulations Environmental Protection Agency (EPA)Environmental Air Quality Focus Area USA Ozone Layer Protection English Air Programs Chlorofluorocarbons CFR Appendix

Species (chemical)	Chemical formula	Global warming potential (time horizon)
		20 years	100 years	500 years
CFC-11	CFCl3	5000	4000	1400
CFC-12	CF2 l2	7900	8500	4200
CFC-13	CClF3	8100	11700	13600
CFC-113	C2F3Cl3	5000	5000	2300
CFC-114	C2F4Cl2	6900	9300	8300
CFC-115	C2F5Cl	6200	9300	13000
H-1301	CF3Br	6200	5600	2200
Carbon Tet	CCl4	2000	1400	500
Methyl Chl	CH3CCl3	360	110	35
HCFC-22	CF2HCl	4300	1700	520
HCFC-141b	C2FH3Cl2	1800	630	200
HCFC-142b	C2F2H3Cl	4200	2000	630
HCFC-123	C2F3HCl2	300	93	29
HCFC-124	C2F4HCl	1500	480	150
HCFC-225ca	C3F5HCl2	550	170	52
HCFC-225cb	C3F5HCl2	1700	530	170

United Nations Environment Programme (UNEP), February 1995, Scientific Assessment of Ozone Depletion: 1994, Chapter 13, "Ozone Depleting Potentials, Global Warming Potentials and Future Chlorine/Bromine Loading," and do not reflect review of scientific documents published after that date.

['Air Programs']

['Chlorofluorocarbons', 'Ozone Layer Protection', 'Ozone Depleting Substances']

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