[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2008]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR82A AppI]
[Page 526]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 82_PROTECTION OF STRATOSPHERIC OZONE--Table of Contents
Subpart A_Production and Consumption Controls
Sec. 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. (Only Direct
Effects are Considered.)
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Global warming potential (time
horizon)
Species (chemical) Chemical formula --------------------------------------
20 years 100 years 500 years
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CFC-11................................. CFCl3 5000 4000 1400
CFC-12................................. CF2 Cl2 7900 8500 4200
CFC-13................................. CClF3 8100 11700 13600
CFC-113................................ C2 F3 Cl3 5000 5000 2300
CFC-114................................ C2 F4 Cl2 6900 9300 8300
CFC-115................................ C2 F5 Cl 6200 9300 13000
H-1301................................. CF3 Br 6200 5600 2200
Carbon Tet............................. CCl4 2000 1400 500
Methyl Chl............................. CH3 CCl3 360 110 35
HCFC-22................................ CF2 HCl 4300 1700 520
HCFC-141b.............................. C2 FH3 Cl2 1800 630 200
HCFC-142b.............................. C2 F2 H3 Cl 4200 2000 630
HCFC-123............................... C2 F3 HCl2 300 93 29
HCFC-124............................... C2 F4 HCl 1500 480 150
HCFC-225ca............................. C3 F5 HCl2 550 170 52
HCFC-225cb............................. C3 F5 HCl2 1700 530 170
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AUnited 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.
[61 FR 1285, Jan. 19, 1996]