Climate Change 2001:
Working Group I: The Scientific Basis
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II.2.4: PFCs, SF6 and HFCs abundances (ppt)

CF4 abundances (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 70 70 70 70 70 70 70 70 70 70
2000 82 82 82 82 82 82 82 82 82 82
2010 91 91 91 92 91 93 100 100 100 100
2020 103 103 103 107 101 108 122 121 118 122
2030 119 119 119 125 111 128 154 146 138 150
2040 141 141 141 148 122 153 197 176 159 184
2050 168 168 168 175 135 184 245 212 181 226
2060 198 198 198 208 150 221 296 255 204 274
2070 230 230 230 246 164 261 342 306 226 327
2080 265 265 265 291 179 302 377 365 242 383
2090 303 303 303 341 193 344 405 433 256 439
2100 341 341 341 397 208 384 437 508 269 493

C2F6 abundances (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 2 2 2 2 2 2 2 2 2 2
2000 3 3 3 3 3 3 3 3 3 3
2010 4 4 4 4 4 4 4 4 4 4
2020 5 5 5 5 4 5 6 6 6 6
2030 6 6 6 6 5 6 8 7 7 8
2040 7 7 7 7 6 8 11 9 8 10
2050 14 14 13 7 7 8 15 7 7 9
2060 17 17 16 9 8 10 18 9 8 11
2070 19 19 18 11 8 12 20 11 8 13
2080 19 21 19 14 8 14 21 13 8 14
2090 20 22 20 17 8 15 21 16 8 15
2100 19 22 20 20 8 17 20 20 8 16

SF6 abundances (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 3 3 3 3 3 3 3 3 3 3
2000 5 5 5 5 5 5 5 5 5 5
2010 7 7 7 7 7 7 7 7 7 7
2020 10 10 10 11 9 10 10 11 10 11
2030 13 13 13 15 12 14 14 15 12 15
2040 18 18 18 20 15 18 19 20 16 21
2050 25 25 25 26 19 23 26 26 20 27
2060 32 32 32 32 23 27 33 33 24 35
2070 39 39 39 40 27 32 41 41 29 43
2080 45 45 45 48 30 36 46 48 32 52
2090 50 50 50 56 33 40 51 57 35 61
2100 56 56 56 65 35 44 57 66 37 70

HFC-23 abundances (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 8 8 8 8 8 8 8 8 8 8
2000 15 15 15 15 15 15 15 15 15 15
2010 26 26 26 26 26 26 26 26 26 26
2020 33 33 33 33 33 33 33 33 33 33
2030 35 35 35 35 35 35 35 35 35 35
2040 35 35 35 35 35 35 36 35 35 35
2050 35 35 35 35 35 35 35 35 35 35
2060 35 35 35 35 34 35 34 34 33 34
2070 35 35 34 34 34 34 32 33 33 32
2080 34 34 34 34 33 34 32 31 31 31
2090 34 34 34 34 33 34 31 30 30 30
2100 34 34 34 33 32 34 30 29 29 29

HFC-32 abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
2010 1 1 1 1 1 1 1 1 1 1
2020 3 3 3 3 3 3 3 3 3 3
2030 7 7 6 4 4 4 7 4 4 5
2040 10 10 10 6 5 6 11 5 5 7
2050 14 14 13 7 7 8 15 7 7 9
2060 17 17 16 9 8 10 18 9 8 11
2070 19 19 18 11 8 12 20 11 8 13
2080 19 21 19 14 8 14 21 13 8 14
2090 20 22 20 17 8 15 21 16 8 15
2100 19 22 20 20 8 17 20 20 8 16

HFC-125 abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p IS92a
1990 0 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0 0
2010 2 2 2 2 2 2 4 3 3 3 0
2020 9 9 9 8 8 8 10 8 8 9 2
2030 21 21 21 16 16 16 22 15 16 17 12
2040 37 37 37 24 24 26 38 23 24 27 40
2050 57 56 55 34 33 36 57 32 33 38 87
2060 77 78 76 45 43 48 78 43 42 51 137
2070 97 98 95 58 49 61 96 54 49 65 177
2080 112 115 111 72 54 75 111 68 54 77 210
2090 124 129 124 89 57 88 123 83 57 89 236
2100 133 140 134 107 58 102 132 101 58 99 255

HFC-134a abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p IS92a
1990 0 0 0 0 0 0 0 0 0 0 0
2000 12 12 12 12 12 12 12 12 12 12 12
2010 58 58 58 55 55 56 80 76 76 79 94
2020 130 130 129 111 108 113 172 141 142 155 183
2030 236 235 233 170 165 179 319 214 215 250 281
2040 375 373 366 231 223 250 522 290 294 356 401
2050 537 535 521 299 293 330 754 375 393 477 537
2060 698 701 675 382 352 424 954 480 476 615 657
2070 814 832 791 480 380 526 1092 606 515 756 743
2080 871 912 859 594 391 633 1167 753 530 878 807
2090 887 952 893 729 390 737 1185 930 531 968 850
2100 875 956 899 877 379 835 1157 1132 522 1041 878

HFC-143a abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
2010 3 3 3 3 2 2 4 4 4 4
2020 11 11 11 10 9 9 12 11 11 11
2030 26 26 26 20 18 19 27 20 20 22
2040 47 47 47 32 29 31 48 31 31 35
2050 73 73 72 45 43 45 75 44 44 51
2060 103 103 101 62 57 62 104 60 58 69
2070 132 133 130 81 68 81 131 78 69 89
2080 158 161 157 103 77 101 156 98 79 110
2090 181 185 180 129 85 121 179 123 86 129
2100 200 207 201 157 90 142 197 151 92 147

HFC-152a abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p IS92a
1990 0 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0 0
2010 0 0 0 0 0 0 0 0 0 0 0
2020 0 0 0 0 0 0 0 0 0 0 2
2030 0 0 0 0 0 0 0 0 0 0 12
2040 0 0 0 0 0 0 0 0 0 0 33
2050 0 0 0 0 0 0 0 0 0 0 56
2060 0 0 0 0 0 0 0 0 0 0 67
2070 0 0 0 0 0 0 0 0 0 0 74
2080 0 0 0 0 0 0 0 0 0 0 79
2090 0 0 0 0 0 0 0 0 0 0 81
2100 0 0 0 0 0 0 0 0 0 0 82

HFC-227ea abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
2010 2 2 2 2 2 2 3 3 3 3
2020 6 6 6 5 6 6 7 6 6 7
2030 13 13 13 10 10 11 13 9 10 11
2040 22 22 22 14 15 17 22 13 15 17
2050 33 33 32 19 21 24 33 18 20 23
2060 45 45 44 25 27 31 43 23 26 31
2070 56 56 55 32 31 40 52 29 30 39
2080 63 65 62 40 34 49 60 36 33 47
2090 68 71 68 49 35 59 64 45 34 54
2100 70 74 71 60 36 68 67 55 35 60

HFC-245ca abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
2010 8 8 8 8 8 8 11 10 10 10
2020 20 20 20 17 17 18 20 16 16 18
2030 34 34 33 23 23 26 35 21 22 26
2040 52 51 50 29 29 34 55 27 28 35
2050 72 72 69 36 38 44 76 34 38 46
2060 92 93 88 46 43 55 92 43 44 58
2070 102 105 99 58 44 67 101 55 44 70
2080 101 108 101 72 43 80 101 68 44 79
2090 97 107 99 88 42 92 96 84 43 84
2100 90 101 94 105 40 103 88 101 41 88

HFC-43-10mee abundance (ppt)
Year A1B A1T A1FI A2 B1 B2 A1p A2p B1p B2p
1990 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
2010 1 1 1 1 1 1 1 1 1 1
2020 2 2 2 2 1 1 2 2 2 2
2030 3 3 3 2 2 2 3 2 2 2
2040 4 4 4 3 2 3 4 2 2 3
2050 5 5 5 3 3 3 5 3 3 3
2060 7 7 6 4 3 4 6 3 3 4
2070 8 8 8 4 4 5 7 4 3 4
2080 9 9 9 5 4 5 8 4 4 5
2090 10 11 10 6 4 6 9 5 4 5
2100 11 12 11 7 4 7 10 6 4 6

Note: Even though all PFCs, SF6 and HFCs emissions are the same for family A1 (A1B, A1T and A1FI), the OH changes due to CH4, NOx, CO and VOC (affecting only HFCs burdens). Hence the burden for HFCs can diverge for each of these scenarios within familiy A1. See Chapter 4 for details.

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