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. Author manuscript; available in PMC: 2021 Apr 15.
Published in final edited form as: Environ Res Lett. 2020 Jul 6;15(7):10.1088/1748-9326/ab83a8. doi: 10.1088/1748-9326/ab83a8

Table 1.

Projected 2011 and 2025 emissions (short tons) from mobile sectors tracked for contribution.

VOC NOX CO SO2 Primary PM2.5 NH3
Description 2011 2025 2011 2025 2011 2025 2011 2025 2011 2025 2011 2025
Nonroad recreational (incl. pleasure craft) 1 273 517 584 652 168 439 163 443 3 815 598 3 187 882 549 423 29 762 13 051 386 422
Nonroad construction 77 690 52 066 531 560 189 821 652 604 427 675 1241 461 44 580 12 708 548 712
Nonroad lawn & garden commercial 249 164 248 135 67 648 54 215 3 352 063 3 729 786 279 136 16 025 19 164 200 255
Nonroad lawn & garden residential 205 867 153 771 26 996 19 777 2 305 837 2 534 336 140 86 4380 5675 107 145
Nonroad agriculture 56 812 27 377 482 559 191 440 450 552 243 007 900 340 38 579 11 310 476 581
Nonroad commercial 136 417 98 805 119 561 74 653 2 484 411 2 790 930 316 179 9114 6173 364 554
Nonroad all other: (industrial, logging, mining, oil field) 49 951 23 816 221 232 98 772 928 098 414 700 582 457 11 324 4348 532 852
Nonroad Subtotal 2 049 418 1 188 622 1 617 995 792 121 13 989 163 13 328 316 4007 2082 153 764 72 429 2613 3521
Onroad light duty gas cars and motorcycles 1 025 647 381 387 1 066 945 219 726 9 324 076 3 999 261 10 949 3487 31 348 19 814 56 042 34 090
Onroad light duty gas trucks 1 372 896 398 441 1 893 768 337 035 14 996 186 5 150 855 14 811 4665 35 479 22 274 57 349 38 298
Onroad heavy duty gas + compressed natural gas (CNG) 47 439 21 056 90 250 30 095 852 807 447 225 471 197 1512 1164 914 1049
Onroad Light duty diesel 42 470 40 564 127 106 173 650 376 015 478 816 272 1291 6581 6692 769 4789
Onroad Heavy duty diesel 221 018 97 316 2 542 140 946 522 764 741 371 279 3163 3748 119 770 30 201 5731 7224
Onroad Subtotal 2 709 470 938 764 5 720 209 1 707 028 26 313 825 10 447 436 29 666 13 388 194 690 80 145 120 805 85 450
Category 1 and 2 (c1c2) marine 13 812 8310 561 321 305 350 114 623 112 451 8103 795 18 012 9069 348 351
Category 3 (c3) marine 32 960 58 707 870 291 833 822 77 992 138 679 346 493 57 096 39 624 12 063 68 68
Rail 46 247 23 317 866 717 582 351 136 220 171 163 8528 382 26 200 13 445 376 375
Aircraft (excluding ground support) 27 360 32 918 104 766 140 528 402 463 454 691 12 453 16 627 7281 8074 0 0
Aircraft ground support only 2283 3152 7606 10 492 66 577 91 976 201 279 233 321 0 0
Aircraft/Rail/Marine Subtotal 122 662 126 404 2 410 701 1 872 543 797 875 968 960 375 778 75 179 91 350 42 972 792 794
Mobile sector total 4 881 548 2 253 790 9 748 904 4 371 692 41 100 866 24 744 712 409 450 90 648 439 803 195 548 124 210 89 765
All non-mobile sectors 52 805 510 57 737 923 6 435 179 6 368 880 35 914 792 33 416 351 6 257 818 3 249 966 4 197 142 4 230 808 4 063 804 4 176 621
Mobile total as percent of total emission inventory 8% 4% 64% 41% 53% 43% 6% 3% 10% 4% 3% 2%

Notes: Category 1 and 2 marine engines are vessels with engines with a cylinder displacement between 2.5 and 30 l.

Category 3 marine engines are large ocean-going vessels with engines with a cylinder displacement greater than 30 l.

‘All non-mobile sectors’ aggregates emissions from three non-mobile source categories: (1) biogenics, fugitive dusts, and agricultural ammonia; (2) ‘all other sectors’, which includes emissions from oil and gas exploration, non-Electricity Generating Unit point, Electricity Generating Unit point, non-point, fires (wild, prescribed, agricultural), and biomass burning; and (3) initial/boundary condition emissions.