5.3 : Heating, Cooling, and Ventilation Equipment




5.3.16 Estimated U.S. Emissions of Halocarbons, 1987-2001 (MMT CO2 Equivalent)
Gas 1987 1990 1992 1995 1998 2000 2001
Chlorofluorocarbons
CFC-11 391 246 207 167 115 105 105
CFC-12 1,166 1,194 853 549 223 182 226
CFC-113 498 158 103 52 0 0 0
CFC-114 N.A. 46 29 16 1 N.A. N.A.
CFC-115 N.A. 30 27 22 19 N.A. N.A.
Bromofluorocarbons
Halon-1211 N.A. 1 1 1 1 N.A. N.A.
Halon-1301 N.A. 12 12 12 13 N.A. N.A.
Hydrochlorofluorocarbons
HCFC-22 116 136 135 123 128 134 137
HCFC-123 N.A. 0 0 0 0 N.A. N.A.
HCFC-124 0 0 0 3 4 N.A. N.A.
HCFC-141b N.A. 0 0 14 19 4 4
HCFC-142b N.A. 0 2 18 22 26 26
Hydrofluorocarbons
HFC-23 48 36 36 28 41 31 22
HFC-125 N.A. 0 1 2 4 5 6
HFC-134a N.A. 1 1 19 35 44 41
Total 2,219 1,861 1,408 1,024 624 532 566









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Sources:

Intergovernmental Panel for Climate Change, Climate Change 2001: The Scientific Basis, Jan. 2001, Table 3, p. 47 for GWPs



EIA, Emissions of Greenhouse Gases in the U.S. 1985-1994, Oct. 1995, Table 34, p. 54 for 1987