“IPCC list of greenhouse gases”的意思、由来-开放百科全书

词条

IPCC list of greenhouse gases

释义

Gases relevant to radiative forcing only (per IPCC documentation)
Gases relevant to radiative forcing and ozone depletion (per IPCC documentation)
References
External links

This is a list of LLGHG (long-lived greenhouse gases) greenhouse gases as used by the IPCC TAR.

Gases relevant to radiative forcing only (per IPCC documentation)

The following table has its sources in Chapter 2, p. 141, Table 2.1. of the IPCC Fourth Assessment Report, 2007.^[1]

Mole fractions: μmol/mol = ppm = parts per million (10⁶); nmol/mol = ppb = parts per billion (10⁹); pmol/mol = ppt = parts per trillion (10¹²).

Mole fractions and their changes		Radiative forcing
Species	2005	Change since 1998	2005 (W m^–2)	1998 (%)
CO₂	379 ± 0.65 μmol/mol	+13 μmol/mol	1.66	+13
CH₄	1,774 ± 1.8 nmol/mol	+11 nmol/mol	0.48	–
N₂O	319 ± 0.12 nmol/mol	+5 nmol/mol	0.16	+11
CFC-11	251 ± 0.36 pmol/mol	−13	0.063	−5
CFC-12	538 ± 0.18 pmol/mol	+4	0.17	+1
CFC-113	79 ± 0.064 pmol/mol	−4	0.024	−5
HCFC-22	169 ± 1.0 pmol/mol	+38	0.033	+29
HCFC-141b	18 ± 0.068 pmol/mol	+9	0.0025	+93
HCFC-142b	15 ± 0.13 pmol/mol	+6	0.0031	+57
CH₃CCl₃	19 ± 0.47 pmol/mol	−47	0.0011	−72
CCl₄	93 ± 0.17 pmol/mol	−7	0.012	−7
HFC-125	3.7 ± 0.10 pmol/mol	+2.6	0.0009	+234
HFC-134a	35 ± 0.73 pmol/mol	+27	0.0055	+349
HFC-152a	3.9 ± 0.11 pmol/mol	+2.4	0.0004	+151
HFC-23	18 ± 0.12 pmol/mol	+4	0.0033	+29
SF₆	5.6 ± 0.038 pmol/mol	+1.5	0.0029	+36
CF₄ (PFC-14)	74 ± 1.6 pmol/mol	–	0.0034	–
C₂F₆ (PFC-116)	2.9 ± 0.025 pmol/mol	+0.5	0.0008	+22

The older data from 1998 has been left for reference.

Gas	Alternate name	Formula	1998 level	Increase since 1750	Radiative forcing (Wm⁻²)	Specific heat at STP (J kg⁻¹)
Carbon dioxide	Carbonic anhydride	(CO₂)	365 μmol/mol	87 μmol/mol	1.46	0.819
Carbon monoxide	Carbonic oxide	(CO)	11.1 μmol/mol	46 nmol/mol	0.89	1.013
Methane	Marsh gas	(CH₄)	1,745 nmol/mol	1,045 nmol/mol	0.48	2.191
Nitrous oxide	Laughing gas	(N₂O)	314 nmol/mol	44 nmol/mol	0.15	0.88
Tetrafluoromethane	Carbon tetrafluoride	(CF₄)	80 pmol/mol	40 pmol/mol	0.003	1.33
Hexafluoroethane	Perfluoroethane	(C₂F₆)	3 pmol/mol	3 pmol/mol	0.001	0.067
Sulfur hexafluoride	Sulfur fluoride	(SF₆)	4.2 pmol/mol	4.2 pmol/mol	0.002	0.074
HFC-23*	Trifluoromethane	(CHF₃)	14 pmol/mol	14 pmol/mol	0.002	0.064
HFC-134a*	1,1,1,2-Tetrafluoroethane	C₂H₂F₄	7.5 pmol/mol	7.5 pmol/mol	0.001	0.007
HFC-152a*	1,1-Difluoroethane	(C₂H₄F₂)	0.5 pmol/mol	0.5 pmol/mol	0.000	0.04

Gas	Alternate name	Formula	1998 level	Increase since 1750	Radiative forcing (Wm⁻²)
CFC-11§	Trichlorofluoromethane	(CFCl₃)	268 pmol/mol	268 pmol/mol	0.07
CFC-12§	Dichlorodifluoromethane	(CF₂Cl₂)	533 pmol/mol	533 pmol/mol	0.17
CFC-13§	Chlorotrifluoromethane	(CClF₃)	4 pmol/mol	4 pmol/mol	0.001
CFC-113	1,1,1-Trichlorotrifluoroethane	(C₂F₃Cl₃)	84 pmol/mol	84 pmol/mol	0.03
CFC-114	1,2-Dichlorotetrafluoroethane	(C₂F₄Cl₂)	15 pmol/mol	15 pmol/mol	0.005
CFC-115	Chloropentafluoroethane	(C₂F₅Cl)	7 pmol/mol	7 pmol/mol	0.001
Carbon tetrachloride	Tetrachloromethane	(CCl₄)	102 pmol/mol	102 pmol/mol	0.01
1,1,1-Trichloroethane	Methyl chloroform	(CH₃CCl₃)	69 pmol/mol	69 pmol/mol	0.004
HCFC-141b	1,1-Dichloro-1-fluoroethane	(C₂H₃FCl₂)	10 pmol/mol	10 pmol/mol	0.001
HCFC-142b	1-Chloro-1,1-difluoroethane	(C₂H₃F₂Cl)	11 pmol/mol	11 pmol/mol	0.002
Halon-1211	Bromochlorodifluoromethane	(CClF₂Br)	3.8 pmol/mol	3.8 pmol/mol	0.001
Halon-1301	Bromotrifluoromethane	(CF₃Br)	2.5 pmol/mol	2.5 pmol/mol	0.001

1. ^{{cite book |url=http://www.ipcc.ch/ipccreports/ar4-wg1.htm |contribution= Chapter 2 |title=Climate Change 2007 Contribution of Working Group I}}

(Source: IPCC radiative forcing report 1994 updated (to 1998) by IPCC TAR table 6.1 . See also .

1 : Greenhouse gases

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