Updated February 6, 2015Updates since February 27, 2014:

Updates since February 17, 2014:Wildfires for 2002v3 were updated to accurately reflect the inventory published on http://www.epa.gov/ttn/chief/net/2002inventory.html#inventorydata

Updates since December 4, 2013:

2012 & 2013 Puerto Rico, Virgin Islands and Tribal data were held constant from the 2011 NEI for all pollutants and tiers.2013 EGU NOx and SO2 emissions were updating using CAMD's final estimates.

Onroad & Nonroad updates for 2007, 2009 and 2010 from MOVES.2006 mobile emissions were recalculated using interpolation between 2005 MOVES data and 2007 MOVES.2009 & 2010 non-mobile emissions were recalculated using interpolation between NEI 2008v3 and NEI 2011v1.

Projected 2020 inventory for mobile emissions were used to calculate 2012 and 2013 onroad and nonroad estimates.2012 and 2013 emissions for non-EGU and non-mobile are held constant from 2011.

2006 and 2007 were recalculated using interpolation between NEI 2005 v2 and NEI 2008 v3.2002 and 2005 MOVES data were used to update 2002-2007.2012 CEM annual data were used to update the previous estimate.

Updated 2011 NEI v1 with 2011 NEI v2. 2009 & 2010 non-mobile emissions recalculated as a result of the 2011 update. Updated 2012, 2013 and 2014 SO2 and NOX electrinic generating units emissions to the most recent CAMD available data.

2003 and 2004 Miscellaneous has been recalculated to reflect the adjustments to the 2002 Wildfire emissions. This in turn will effect the 2003 and 2004 total emissions.

Added Puerto Rico, Virgin Islands and Tribal data back into the trend line. These were discovered to be included in the data prior to 2002 and thus were added back into 2002-present. These data were estimated using interpolation for interim years and held constant after 2011.

Puerto Rico, Virgin Islands and Tribal data were not present in the MOVES database or for NOx and SO2 CAMD replacements. The added territories were taken from the NEI years and interpolated values and then appended to the other data sources used for updating.

Updates since June 6, 2013: Now using NEI 2011 v1 at the Tier 1 level.

CEM data for 2013 is currently only available for the first three quarters of the year. The percent change from the third to fourth quarters in 2012 were used to estimate the final quarter of 2013. AK and HI CEM data are not provided from CAMD and are held constant from 2011.

Updates since June 12, 2012: Now using NEI 2008 v3 at the Tier 1 level.

Updates since June 14, 2011: Now using NEI 2008v2 at the Tier 1 level. Adjusted "Open burning" SCCs in 2005 to be more in align with 2008 wildfires.

This update affects emissions for year 2006 and after.The NEI 2005 v2 and the 2008 NEI v2 are applied to recalculate 2006 and 2007 as an interpolation between 2005v2 and 2008v2.2009-2012 values were filled with 2008v2 emissions (flat lined) except where noted because presently there is no comprehensive projected inventory available for interpolation based off the NEI 2008v2 inventory.EGU (electric generating utility) NOx and SO2 emissions for 2009-2011 were updated with continuous emissions monitoring (CEMs) data from the EPA's Acid Rain Program (CAMD) emissions database.CEM data for 2012 is currently only available for the first three quarters of the year. The percent change from the third to fourth quarters in 2011 were used to estimate the final quarter of 2012. Alaska and Hawaii CEM data are not provided from CAMD and are held constant from 2008.Projected 2012 inventory data from the 2005-based modeling platform <http://www.epa.gov/ttn/chief/emch/index.html> was used to develop 2009-2012 estimates for the mobile source sectors rather than flat lining and the results were scaled to the 2008v2 emissions to maintain consistency with the flat-line approach for other sectors. The 2009- 2012 onroad and nonroad data were scaled to the 2008 NEI V2 onroad and nonroad sector data at the state pollutant level (and gas and diesel vehicles for onroad). An adjustment was applied to the 2005 NEI unclassified fire emissions to allocate and add those emissions to pre-existing estimate of prescribed fires and wildfires, and provides for a more reasonable exclusion of wildfires for 'anthropogenic only' emissions.The same operation was performed for nonroad mobile used NMIM (NONROAD) model results for monthly-county-SCC, aggregated to state-annual to compute ratios. The 2012 projected inventory was that used for the final US EPA Cross-State Air Pollution Rule and is a product of the 2005 based modeling platform <http://www.epa.gov/ttn/chief/emch/index.html> which supported the Final Transport Rule. The purpose of the Final Transport Rule was to identify upwind states’ emissions that significantly contribute to downwind nonattainment or interfere with downwind maintenance of the 1997 and 2006 fine particle (PM2.5) National Ambient Air Quality Standard (NAAQS) and the 1997 ozone NAAQS. The Cross-State Air Pollution Rule (CSAPR), requires states to significantly improve air quality by reducing power plant emissions that contribute to ozone and/or fine particle pollution in other states.

Emissions in 2008 decreased over 2005 for all pollutants except slight increases for NH3, PM10, and PM2.5.

NH3: The increase in the miscellaneous category come from prescribed fires and primarily from waste disposal, the latter largely due to the addition of municipal/commercial composting emissions.

PM: The increases in the highway vehicle category are associated with the change to the MOVES estimation model, which has higher PM2.5 emissions than previous model MOBILE6 due to temperature impacts on PM2.5 included in MOVES and based on new emissions testing. The increases in the Miscellaneous category are related to increases in dust from agricultural tilling and livestock especially for PM10. The apparent increase in PM2.5 from 2005 to 2008 is also related to a change in methods for computing PM2.5 emissions from paved roads. Specifically, a new method for 2008 paved road emissions was based on truck vehicle miles tracking and road particulate testing in collaboration with industry group for a new emission factor that results in an increase for PM2.5 and decrease for PM10. These increases offset decreases in other sectors.

While slight increases are observed up to 2008, the decrease after 2008 may be in part due to our approach to flat-line several categories in absence of a projection year emissions inventory.

For instance for NH3 the trend in emissions from agriculture activities has been upward. The flatline of the agriculture emissions in the Miscellaneous category from 2008, and the decreases in the other sectors allow for an apparent decrease.

A thorough discussion of the emissions differences for all pollutants and categories is included in the 2008 v2 release documentation, posted at <http://www.epa.gov/ttn/chief/net/2008neiv2/2008_neiv2_tsd_draft.pdf>.

Process taken to update data:1. Retrieve NEI 2011v2 onroad, nonroad, nonpoint & point SCC files.2. Open all files in a text editor that supports large file sizes (for checking total records).3. Import separate datafiles into SAS and use the numbers found in step two to ensure all records imported successfully.4. Combine datasets then check to makse sure all records are there.5. Sum the data to pollutant totals.6. Check pollutant totals against the NEI 2011v2 page or EIS summaries.7. Run the database through our SCC_to_Tier crosswalk.8. Check post merge to make sure all SCCs have an assigned Tier.9. Sum data up to pollutant totals again and check totals against EIS summaries or 2011 NEI webpage10. An extra step for checking sums -> added back in removed data and check totals again.11. Sum data up to national/Tier1/pollutant level.12. Take the new 2005 prescribed fire emissions and add those back into the Miscellaneous Tier.13. Interpolate 2009 and 2010 emissions after removal of wildfires.14. 2008 wildfire emissions are flatlined for 2009 and 2010 while 2011 wildfire emissions are flatlined for 2012, 2013 and 2014.

15. All emissions are held constant for 2012, 2013 and 2014 using the NEI 2011v2, except for Tiers: Fuel Comb. Elec. Util. (NOx and SO2 only), Highway Vehicles and Off-Highway. For Fuel Comb. Elec. Util NOx and SO2 the data are replaced by emissions obtained from http://camddataandmaps.epa.gov/gdm/index.cfm?fuseaction=emissions.wizard using state level/quick reports. AK, HI, PR, VI and Tribal emissions are not available from CAMD and are retained from the NEI.

16. Highway Vehicles and Off-Highway use MOVES and NONROAD from the modeling files for years: '02, '05, '07, '09, and '10. For 2012, 2013 and 2014 mobile values were interpolated after using the 2018 projection file. A 2006 modeling file was not available and the mobile portion was found through interpolation between 2005 and 2007.

Carbon Monoxide (CO)National Emissions Totals (thousands of tons)

Source Category 1970 1975 1980 1985 1990 1991FUEL COMB. ELEC. UTIL. 237 276 322 291 363 349FUEL COMB. INDUSTRIAL 770 763 750 670 879 920FUEL COMB. OTHER 3,625 3,441 6,230 7,525 4,269 4,587CHEMICAL & ALLIED PRODUCT MFG 3,397 2,204 2,151 1,845 1,183 1,127METALS PROCESSING 3,644 2,496 2,246 2,223 2,640 2,571PETROLEUM & RELATED INDUSTRIES 2,179 2,211 1,723 462 333 345OTHER INDUSTRIAL PROCESSES 620 630 830 694 537 548SOLVENT UTILIZATION NA NA NA 2 5 5STORAGE & TRANSPORT NA NA NA 49 76 28WASTE DISPOSAL & RECYCLING 7,059 3,230 2,300 1,941 1,079 1,116HIGHWAY VEHICLES 163,231 153,555 143,827 134,187 110,255 104,980OFF-HIGHWAY 11,371 14,329 16,685 19,029 21,447 21,934MISCELLANEOUS 7,909 5,263 8,344 7,927 11,122 8,618

Total 204,042 188,398 185,408 176,845 154,188 147,128Wildfires 6,766 4,433 7,622 7,289 10,583 10,583Total without wildfires 197,277 183,965 177,785 169,555 143,603 136,545Miscellaneous without wildfires

Stationary fuel combustion 4,632 4,480 7,302 8,486 5,511 5,856Industrial and other processes 16,899 10,771 9,250 7,216 5,853 5,740Transportation 174,602 167,884 160,512 153,216 131,702 126,914Miscellaneous 7,909 5,263 8,344 7,927 11,122 8,618Total 204,042 188,398 185,408 176,845 154,188 147,128

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001350 363 370 372 408 423 451 496 484 485955 1,043 1,041 1,056 1,188 1,162 1,151 1,213 1,219 1,253

4,849 4,181 4,108 4,506 2,741 2,742 2,727 3,829 3,081 3,0881,112 1,093 1,171 1,223 1,053 1,071 1,081 350 361 3722,496 2,536 2,475 2,380 1,599 1,710 1,702 1,255 1,295 1,380371 371 338 348 354 367 366 159 161 162544 594 600 624 561 582 590 571 592 615

5 5 5 6 1 2 2 52 51 5017 51 24 25 70 71 72 163 169 178

1,138 1,248 1,225 1,185 2,904 2,948 3,121 3,019 1,849 1,85199,705 94,431 89,156 83,881 78,606 75,849 73,244 68,708 68,061 63,47622,419 22,904 23,389 23,874 24,358 23,668 23,689 23,316 24,178 24,6776,934 7,082 9,656 7,298 15,016 7,316 7,184 11,410 12,964 8,676

140,895 135,902 133,558 126,778 128,858 117,910 115,380 114,541 114,467 106,2626,389 6,537 9,089 6,705 14,502 6,793 6,654 10,508 12,049 7,744

134,507 129,364 124,470 120,072 114,356 111,117 108,726 104,033 102,418 98,518

6,154 5,587 5,519 5,934 4,336 4,327 4,329 5,538 4,784 4,8255,683 5,898 5,838 5,791 6,541 6,750 6,934 5,569 4,479 4,609

122,124 117,335 112,545 107,755 102,964 99,517 96,933 92,024 92,239 88,1536,934 7,082 9,656 7,298 15,016 7,316 7,184 11,410 12,964 8,676

140,895 135,902 133,558 126,778 128,858 117,910 115,380 114,541 114,467 106,262

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011657 653 648 643 673 703 728 747 766 784

1,267 1,231 1,192 1,152 1,067 983 898 919 940 9613,550 3,478 3,405 3,331 3,137 2,943 2,749 2,783 2,818 2,852284 259 233 208 200 191 183 178 173 167987 934 882 829 833 836 840 815 791 766357 355 353 351 322 293 265 401 536 672490 505 520 534 498 463 426 397 367 337

2 2 2 2 4 5 7 5 4 2118 114 111 107 78 48 18 21 24 27

1,594 1,581 1,568 1,554 1,495 1,437 1,378 1,289 1,200 1,11151,611 48,683 45,754 42,826 40,046 37,266 33,156 27,437 28,242 27,35522,624 22,384 22,144 21,903 20,373 18,842 17,884 15,921 15,353 14,94918,493 19,415 20,336 15,106 17,111 19,116 21,121 21,839 22,558 23,777

102,033 99,593 97,147 88,546 85,837 83,128 79,655 72,753 73,771 73,76214,052 14,052 14,052 7,900 7,900 7,900 12,200 12,200 12,200 12,70187,981 85,541 83,096 80,646 77,937 75,228 67,455 60,552 61,571 61,0604,442 5,363 6,285 7,206 9,211 11,216 8,921 9,639 10,357 11,076

5,474 5,361 5,244 5,125 4,877 4,629 4,376 4,450 4,524 4,5983,830 3,750 3,669 3,586 3,430 3,274 3,117 3,106 3,094 3,083

74,235 71,066 67,898 64,729 60,419 56,108 51,041 43,358 43,596 42,30418,493 19,415 20,336 15,106 17,111 19,116 21,121 21,839 22,558 23,777

102,033 99,593 97,147 88,546 85,837 83,128 79,655 72,753 73,771 73,762

2012 2013 2014784 784 784961 961 961

2,852 2,852 2,852167 167 167766 766 766672 672 672337 337 337

2 2 227 27 27

1,111 1,111 1,11125,657 23,959 22,26114,645 14,341 14,03723,777 23,777 23,777

71,760 69,758 67,75612,701 12,701 12,70159,058 57,057 55,05511,076 11,076 11,076

4,598 4,598 4,5983,083 3,083 3,083

40,303 38,301 36,29923,777 23,777 23,77771,760 69,758 67,756

Nitrogen Oxides (Nox)National Emissions Totals (thousands of tons)

Source Category 1970 1975 1980 1985 1990 1991FUEL COMB. ELEC. UTIL. 4,900 5,694 7,024 6,127 6,663 6,519FUEL COMB. INDUSTRIAL 4,325 4,007 3,555 3,209 3,035 2,979FUEL COMB. OTHER 836 785 741 712 1,196 1,281CHEMICAL & ALLIED PRODUCT MFG 271 221 213 262 168 165METALS PROCESSING 77 73 65 87 97 76PETROLEUM & RELATED INDUSTRIES 240 63 72 124 153 121OTHER INDUSTRIAL PROCESSES 187 182 205 327 378 352SOLVENT UTILIZATION 0 0 0 2 1 2STORAGE & TRANSPORT 0 0 0 2 3 6WASTE DISPOSAL & RECYCLING 440 159 111 87 91 95HIGHWAY VEHICLES 12,624 12,061 11,493 10,932 9,592 9,449OFF-HIGHWAY 2,652 2,968 3,353 3,576 3,781 3,849MISCELLANEOUS 330 165 248 310 369 286

Total 26,883 26,377 27,079 25,757 25,529 25,179Wildfires NA NA NA NA 362 247Total without wildfires 26,883 26,377 27,079 25,757 25,167 24,932Miscellaneous without wildfires 7 39

Stationary fuel combustion 10,061 10,486 11,320 10,048 10,894 10,779Industrial and other processes 1,215 698 666 891 891 817Transportation 15,276 15,029 14,846 14,508 13,373 13,298Miscellaneous 330 165 248 310 369 286Total 26,882 26,378 27,080 25,757 25,527 25,180

National Emissions Totals (thousands of tons)

1992 1993 1994 1995 1996 1997 1998 1999 2000 20016,504 6,651 6,565 6,384 6,164 6,276 6,232 5,721 5,330 4,9173,071 3,151 3,147 3,144 3,151 3,101 3,050 2,709 2,723 2,7571,353 1,308 1,303 1,298 1,197 1,177 1,101 768 766 779163 155 160 158 125 127 129 102 105 10781 83 91 98 83 89 89 86 89 94

148 123 117 110 139 143 143 120 122 124361 370 389 399 433 460 467 451 479 504

3 3 3 3 2 3 3 4 4 45 5 5 6 15 16 16 14 15 1696 123 114 99 153 157 163 162 129 130

9,306 9,162 9,019 8,876 8,733 8,792 8,619 8,371 8,394 7,7743,915 3,981 4,047 4,113 4,179 4,178 4,156 4,084 4,167 4,156255 241 390 267 412 187 179 251 276 184

25,260 25,357 25,349 24,956 24,787 24,705 24,348 22,845 22,598 21,549234 234 382 258 405 179 172 236 263 171

25,026 25,123 24,967 24,698 24,382 24,526 24,176 22,609 22,335 21,37821 7 8 9 7 7 8 15 13 13

10,928 11,110 11,015 10,826 10,513 10,554 10,383 9,198 8,819 8,454857 862 879 873 950 994 1,010 940 943 981

13,221 13,143 13,066 12,989 12,912 12,970 12,776 12,456 12,560 11,930255 241 390 267 412 187 179 251 276 184

25,261 25,356 25,350 24,955 24,787 24,705 24,348 22,845 22,598 21,549

2002 2003 2004 2005 2006 2007 2008 2009 2010 20114,709 4,340 3,969 3,792 3,588 3,383 3,144 2,818 2,458 2,0902,041 1,971 1,897 1,820 1,681 1,543 1,399 1,352 1,305 1,258738 736 734 730 682 633 585 575 565 55570 67 64 61 59 57 55 54 53 5169 68 67 66 71 75 79 76 73 71

354 357 355 354 379 405 431 516 601 685429 448 467 482 461 440 416 395 374 353

7 6 5 4 5 6 6 4 3 119 18 17 16 14 12 10 13 16 20

111 122 134 146 130 113 97 92 88 8310,337 9,671 9,004 8,338 7,992 7,646 6,941 6,206 5,701 5,8704,864 4,667 4,471 4,275 3,898 3,521 3,485 3,391 3,315 3,081211 178 146 271 268 265 262 278 295 399

23,959 22,651 21,331 20,355 19,227 18,099 16,909 15,772 14,846 14,519114 114 114 94 94 94 96 96 96 185

23,845 22,537 21,218 20,261 19,133 18,005 16,813 15,675 14,750 14,33497 65 32 177 174 171 165 182 198 215

7,488 7,047 6,600 6,343 5,951 5,559 5,127 4,745 4,328 3,9041,059 1,087 1,109 1,129 1,118 1,108 1,094 1,151 1,207 1,264

15,201 14,338 13,475 12,612 11,890 11,167 10,426 9,598 9,017 8,952211 178 146 271 268 265 262 278 295 399

23,959 22,651 21,331 20,355 19,227 18,099 16,909 15,772 14,846 14,519

2012 2013 20141,826 1,838 1,7761,258 1,258 1,258555 555 55551 51 5171 71 71

685 685 685353 353 353

1 1 120 20 2083 83 83

5,410 4,950 4,4892,944 2,807 2,669399 399 399

13,657 13,072 12,412185 185 185

13,472 12,887 12,227215 215 215

3,640 3,652 3,5901,264 1,264 1,2648,354 7,756 7,158399 399 399

13,657 13,072 12,412

Particulate Matter 10 Micrometers in Diameter and Smaller (PM10)National Totals with Condensibles from 1999 - 2014 (thousands of tons)

Source Category 1970 1975 1980 1985 1990 1991FUEL COMB. ELEC. UTIL. 1,775 1,191 879 280 295 257FUEL COMB. INDUSTRIAL 641 564 679 247 270 233FUEL COMB. OTHER 455 492 887 1,009 631 657CHEMICAL & ALLIED PRODUCT MFG 235 127 148 58 77 68METALS PROCESSING 1,316 825 622 220 214 251PETROLEUM & RELATED INDUSTRIES 286 179 138 63 55 43OTHER INDUSTRIAL PROCESSES 5,832 2,572 1,846 611 583 520SOLVENT UTILIZATION NA NA NA 2 4 5STORAGE & TRANSPORT NA NA NA 107 102 101WASTE DISPOSAL & RECYCLING 999 371 273 278 271 276HIGHWAY VEHICLES 480 456 432 408 387 370OFF-HIGHWAY 164 209 257 304 328 331MISCELLANEOUS 839 569 852 37,736 24,536 24,233

Total 13,022 7,555 7,013 41,323 27,753 27,345Miscellaneous 839 569 852 37,736 24,536 24,233Total without miscellaneous 12,183 6,986 6,161 3,587 3,217 3,112WildfiresTotal without wildfiresMiscellaneous without wildfires

Particulate Matter 10 Micrometers in Diameter and Smaller (PM10)National Totals with Condensibles from 1999 - 2014 (thousands of tons)

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001257 279 273 268 289 295 229 723 687 696243 257 270 302 238 232 229 317 320 330683 588 570 610 380 381 378 421 465 46771 66 76 67 63 64 65 54 55 57

250 181 184 212 144 151 150 136 140 14843 38 38 40 29 30 30 38 38 39

506 501 495 511 325 336 338 365 378 3945 6 6 6 6 6 6 17 17 18

117 114 106 109 81 83 84 83 84 88278 334 313 287 454 468 488 468 362 363354 337 321 304 287 274 256 241 230 212333 335 337 339 341 337 332 336 322 317

23,958 24,328 25,619 22,765 20,219 20,253 20,307 20,186 20,649 20,580

27,098 27,364 28,608 25,820 22,857 22,909 22,893 23,383 23,747 23,70823,958 24,328 25,619 22,765 20,219 20,253 20,307 20,186 20,649 20,5803,140 3,036 2,989 3,055 2,638 2,656 2,585 3,198 3,098 3,127

2002 2003 2004 2005 2006 2007 2008 2009 2010 2011620 622 625 627 556 484 409 366 323 280339 345 348 350 297 243 189 218 246 275491 482 473 464 439 414 388 400 412 42440 38 37 36 33 29 26 25 23 2281 82 83 83 82 82 81 75 69 6325 26 27 28 29 29 30 32 33 35

976 988 999 1,009 1,032 1,055 1,076 973 870 7668 8 8 8 7 6 5 4 4 460 59 59 58 56 54 51 52 52 52

289 289 289 289 272 255 238 222 207 192402 395 389 383 376 370 332 305 279 371362 343 323 304 283 263 260 242 228 223

17,883 17,986 18,089 17,662 17,940 18,218 18,496 18,286 18,076 18,015

21,576 21,664 21,749 21,302 21,401 21,501 21,580 21,199 20,823 20,72317,883 17,986 18,089 17,662 17,940 18,218 18,496 18,286 18,076 18,0153,693 3,679 3,660 3,639 3,461 3,283 3,084 2,913 2,747 2,7081,335 1,335 1,335 805 805 805 1,178 1,178 1,178 1,326

20,241 20,330 20,414 20,497 20,596 20,696 20,402 20,021 19,645 19,39716,548 16,651 16,754 16,857 17,135 17,413 17,318 17,108 16,899 16,689

2012 2013 2014280 280 280275 275 275424 424 42422 22 2263 63 6335 35 35

766 766 7664 4 452 52 52

192 192 192348 324 301211 198 186

18,015 18,015 18,015

20,687 20,651 20,61618,015 18,015 18,0152,672 2,636 2,6011,326 1,326 1,326

19,361 19,325 19,29016,689 16,689 16,689

Particulate Matter 2.5 Micrometers in Diameter and Smaller (PM2.5)National Totals with Condensibles from 1999 - 2014 (thousands of tons)

Source Category 1990 1991 1992 1993 1994 1995FUEL COMB. ELEC. UTIL. 121 105 106 112 108 107FUEL COMB. INDUSTRIAL 177 151 159 172 183 203FUEL COMB. OTHER 611 638 662 568 550 589CHEMICAL & ALLIED PRODUCT MFG 47 43 45 41 49 42METALS PROCESSING 157 197 198 125 125 134PETROLEUM & RELATED INDUSTRIES 27 24 24 22 22 22OTHER INDUSTRIAL PROCESSES 284 264 259 260 256 256SOLVENT UTILIZATION 4 4 5 6 6 5STORAGE & TRANSPORT 42 42 50 46 43 42WASTE DISPOSAL & RECYCLING 234 238 239 288 271 247HIGHWAY VEHICLES 323 308 292 276 261 245OFF-HIGHWAY 300 303 305 307 309 311MISCELLANEOUS 5,233 5,003 4,854 4,926 5,359 4,726

Total 7,560 7,320 7,198 7,149 7,542 6,929Miscellaneous 5,233 5,003 4,854 4,926 5,359 4,726Total without miscellaneous 2,327 2,317 2,344 2,223 2,183 2,203WildfiresTotal without wildfiresMiscellaneous without wildfires

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005157 161 130 621 587 584 506 509 513 516152 148 147 258 260 267 178 184 189 194356 356 354 400 447 449 445 437 429 42239 39 40 45 46 47 30 30 29 29

101 106 105 115 118 125 54 56 58 6017 17 17 27 27 28 18 19 20 21

180 186 189 245 254 264 354 365 376 3875 5 5 17 17 17 7 7 7 730 31 31 41 42 44 23 24 24 25

427 439 459 440 333 334 268 268 267 266229 216 199 184 173 157 330 322 315 308313 309 304 307 295 290 338 321 304 287

4,721 4,244 4,280 4,511 4,688 4,390 3,256 3,346 3,437 3,069

6,724 6,256 6,261 7,211 7,288 6,996 5,805 5,888 5,970 5,5924,721 4,244 4,280 4,511 4,688 4,390 3,256 3,346 3,437 3,0692,003 2,012 1,981 2,700 2,600 2,606 2,549 2,542 2,533 2,523

1,131 1,131 1,131 6734,674 4,757 4,838 4,9192,125 2,215 2,306 2,396

2006 2007 2008 2009 2010 2011 2012 2013 2014448 379 309 275 240 205 205 205 205178 162 146 171 197 223 223 223 223408 394 380 391 403 415 415 415 41526 23 20 19 18 17 17 17 1761 62 63 58 53 48 48 48 4822 22 23 25 27 29 29 29 29

372 357 341 319 298 277 277 277 2776 5 4 4 4 4 4 4 425 24 24 23 22 21 21 21 21

246 226 206 192 178 165 165 165 165295 283 253 224 199 198 187 177 167267 247 236 225 213 210 199 187 175

3,383 3,697 4,011 4,061 4,111 4,288 4,288 4,288 4,288

5,736 5,881 6,014 5,988 5,964 6,100 6,077 6,055 6,0333,383 3,697 4,011 4,061 4,111 4,288 4,288 4,288 4,2882,353 2,184 2,003 1,927 1,853 1,812 1,790 1,767 1,745673 673 999 999 999 1,125 1,125 1,125 1,125

5,063 5,208 5,016 4,989 4,965 4,974 4,952 4,930 4,9082,710 3,024 3,012 3,062 3,113 3,163 3,163 3,163 3,163

Sulfur Dioxide (SO2)National Totals (thousands of tons)

Source Category 1970 1975 1980 1985 1990 1991FUEL COMB. ELEC. UTIL. 17,398 18,268 17,469 16,272 15,909 15,784FUEL COMB. INDUSTRIAL 4,568 3,310 2,951 3,169 3,550 3,256FUEL COMB. OTHER 1,490 1,082 971 579 831 755CHEMICAL & ALLIED PRODUCT MFG 591 367 280 456 297 280METALS PROCESSING 4,775 2,849 1,842 1,042 726 612PETROLEUM & RELATED INDUSTRIES 881 727 734 505 430 378OTHER INDUSTRIAL PROCESSES 846 740 918 425 399 396SOLVENT UTILIZATION NA NA NA 1 0 0STORAGE & TRANSPORT NA NA NA 4 7 10WASTE DISPOSAL & RECYCLING 8 46 33 34 42 44HIGHWAY VEHICLES 273 334 394 455 503 469OFF-HIGHWAY 278 301 323 354 371 379MISCELLANEOUS 110 20 11 11 12 12

Total 31,218 28,044 25,926 23,307 23,077 22,375Wildfires NA NA NA NA 12 12Total without wildfires 31,218 28,044 25,926 23,307 23,065 22,363Miscellaneous without wildfires 110 20 11 11 0 0

Stationary fuel combustion 23,456 22,660 21,391 20,020 20,290 19,795Industrial and other processes 7,101 4,729 3,807 2,467 1,901 1,720Transportation 551 635 717 809 874 848Miscellaneous 110 20 11 11 12 12Total 31,218 28,044 25,926 23,307 23,077 22,375

1992 1993 1994 1995 1996 1997 1998 1999 2000 200115,416 15,189 14,889 12,080 12,767 13,195 13,416 12,583 11,396 10,8503,292 3,284 3,218 3,357 2,849 2,805 2,740 2,135 2,139 2,243784 772 780 793 636 648 586 620 628 642278 269 275 286 255 259 261 325 338 342615 603 562 530 389 407 405 304 313 332416 383 379 369 335 344 342 312 316 319396 392 398 403 386 409 415 382 410 429

1 1 1 1 1 1 1 1 1 19 5 2 2 5 5 5 6 6 744 71 59 47 32 33 34 34 34 35

436 402 369 335 302 304 300 300 260 248385 392 399 406 413 422 432 475 437 44010 10 15 10 15 7 6 67 70 44

22,082 21,773 21,346 18,619 18,385 18,840 18,944 17,545 16,347 15,9329 9 14 10 15 6 6 67 69 44

22,073 21,764 21,332 18,609 18,370 18,834 18,939 17,478 16,278 15,8881 1 1 0 0 0 0 0 0 0

19,492 19,245 18,887 16,230 16,252 16,649 16,743 15,338 14,163 13,7351,759 1,724 1,676 1,638 1,403 1,459 1,464 1,364 1,418 1,464

821 794 768 741 715 725 732 776 697 68810 10 15 10 15 7 6 67 70 44

22,082 21,773 21,346 18,619 18,385 18,840 18,944 17,545 16,347 15,932

2002 2003 2004 2005 2006 2007 2008 2009 2010 201110,436 10,343 10,250 10,404 9,546 8,687 7,792 6,762 5,696 4,6251,786 1,780 1,763 1,735 1,514 1,293 1,069 938 807 676579 581 582 582 485 388 291 267 243 219259 257 254 251 229 207 185 165 146 127213 200 187 175 175 176 177 166 155 144257 237 218 199 182 166 149 139 129 119325 337 349 361 325 289 253 231 210 188

0 0 0 0 0 1 1 1 0 05 4 3 3 4 5 6 7 8 926 27 28 28 26 24 21 20 18 17

286 248 210 172 107 42 39 36 37 29725 654 582 510 399 287 201 207 121 127135 140 145 126 130 135 139 150 161 198

15,032 14,808 14,571 14,546 13,123 11,699 10,324 9,089 7,732 6,47980 80 80 56 56 56 70 70 70 96

14,952 14,728 14,491 14,490 13,067 11,643 10,254 9,019 7,662 6,38355 60 65 70 74 79 69 80 91 102

12,801 12,704 12,595 12,721 11,544 10,368 9,152 7,967 6,746 5,5201,085 1,062 1,040 1,017 942 867 792 730 667 6051,011 901 792 682 506 329 240 243 158 157

135 140 145 126 130 135 139 150 161 19815,032 14,808 14,571 14,546 13,123 11,699 10,324 9,089 7,732 6,479

2012 2013 20143,359 3,283 3,195676 676 676219 219 219127 127 127144 144 144119 119 119188 188 188

0 0 09 9 917 17 1727 25 22

111 94 77198 198 198

5,193 5,098 4,99196 96 96

5,097 5,002 4,895102 102 102

4,253 4,177 4,089605 605 605138 119 100198 198 198

5,193 5,098 4,991

Volatile Organic Compounds (VOC)National Totals (thousands of tons)

Source Category 1970 1975 1980 1985 1990 1991FUEL COMB. ELEC. UTIL. 30 40 45 32 47 44FUEL COMB. INDUSTRIAL 150 150 157 134 182 196FUEL COMB. OTHER 541 470 848 1,403 776 835CHEMICAL & ALLIED PRODUCT MFG 1,341 1,351 1,595 881 634 710METALS PROCESSING 394 336 273 76 122 123PETROLEUM & RELATED INDUSTRIES 1,194 1,342 1,440 703 611 640OTHER INDUSTRIAL PROCESSES 270 235 237 390 401 391SOLVENT UTILIZATION 7,174 5,651 6,584 5,699 5,750 5,782STORAGE & TRANSPORT 1,954 2,181 1,975 1,747 1,490 1,532WASTE DISPOSAL & RECYCLING 1,984 984 758 979 986 999HIGHWAY VEHICLES 16,910 15,392 13,869 12,354 9,388 8,860OFF-HIGHWAY 1,616 1,917 2,192 2,439 2,662 2,709MISCELLANEOUS 1,101 716 1,134 566 1,059 756

Total 34,659 30,765 31,107 27,403 24,108 23,577Wildfires 917 587 1,024 465 983 678Total without wildfires 33,742 30,178 30,083 26,938 23,125 22,899Miscellaneous without wildfires 184 129 110 101 76 78

Stationary fuel combustion 721 660 1,050 1,569 1,005 1,075Industrial and other processes 14,311 12,080 12,862 10,475 9,994 10,177Transportation 18,526 17,309 16,061 14,793 12,050 11,569Miscellaneous 1,101 716 1,134 566 1,059 756Total 34,659 30,765 31,107 27,403 24,108 23,577

1992 1993 1994 1995 1996 1997 1998 1999 2000 200144 45 45 44 50 52 56 54 62 61

187 186 196 206 179 175 174 172 173 176884 762 748 823 893 893 889 919 949 950715 701 691 660 388 388 394 251 254 262124 124 126 125 73 78 78 66 67 71632 649 647 642 477 487 485 457 428 441414 442 438 450 435 438 443 438 454 420

5,901 6,016 6,162 6,183 5,477 5,621 5,149 5,036 4,831 5,0121,583 1,600 1,629 1,652 1,294 1,328 1,327 1,237 1,176 1,1921,010 1,046 1,046 1,067 509 518 535 487 415 4208,332 7,804 7,277 6,749 6,221 5,985 5,859 5,681 5,325 4,9522,754 2,799 2,845 2,890 2,935 2,752 2,673 2,682 2,644 2,622486 556 720 551 1,940 816 718 791 733 532

23,066 22,730 22,570 22,042 20,871 19,530 18,781 18,270 17,512 17,111407 478 638 464 1,870 744 645 667 615 412

22,659 22,252 21,932 21,578 19,001 18,786 18,136 17,603 16,898 16,69979 78 82 87 71 72 72 124 118 120

1,115 993 989 1,073 1,122 1,120 1,120 1,145 1,184 1,18610,379 10,578 10,739 10,779 8,653 8,857 8,411 7,972 7,626 7,81811,086 10,603 10,122 9,639 9,156 8,737 8,533 8,362 7,969 7,574

486 556 720 551 1,940 816 718 791 733 53223,066 22,730 22,570 22,042 20,871 19,530 18,781 18,270 17,512 17,111

2002 2003 2004 2005 2006 2007 2008 2009 2010 201149 49 49 48 47 45 44 43 42 41

152 146 139 133 124 116 107 109 110 1121,523 1,211 900 589 528 467 406 430 453 476249 245 240 235 186 137 88 86 85 8346 47 48 49 45 41 37 36 35 34

601 588 575 562 956 1,350 1,744 2,088 2,431 2,774442 447 452 457 425 394 362 351 340 329

4,278 4,267 4,256 4,245 3,938 3,630 3,299 3,136 2,974 2,8111,484 1,487 1,473 1,442 1,360 1,277 1,193 1,143 1,093 1,043395 395 394 392 323 254 185 167 150 132

4,013 3,823 3,633 3,443 3,464 3,484 3,052 2,756 2,766 2,8723,086 3,013 2,939 2,866 2,746 2,627 2,546 2,370 2,295 2,1573,970 4,193 4,415 3,291 3,759 4,227 4,695 4,879 5,062 5,290

20,289 19,911 19,514 17,753 17,902 18,050 17,759 17,593 17,835 18,1543,213 3,213 3,213 1,868 1,868 1,868 2,847 2,847 2,847 2,891

17,076 16,697 16,300 15,885 16,034 16,183 14,912 14,747 14,988 15,263757 979 1,201 1,424 1,892 2,360 1,849 2,032 2,216 2,399

1,724 1,406 1,088 769 699 628 557 581 605 6287,496 7,476 7,439 7,383 7,234 7,084 6,909 7,008 7,107 7,2077,099 6,836 6,572 6,309 6,210 6,111 5,598 5,125 5,061 5,0293,970 4,193 4,415 3,291 3,759 4,227 4,695 4,879 5,062 5,290

20,289 19,911 19,514 17,753 17,902 18,050 17,759 17,593 17,835 18,154

2012 2013 201441 41 41

112 112 112476 476 47683 83 8334 34 34

2,774 2,774 2,774329 329 329

2,811 2,811 2,8111,043 1,043 1,043132 132 132

2,634 2,396 2,1592,053 1,949 1,8455,290 5,290 5,290

17,813 17,471 17,1302,891 2,891 2,891

14,921 14,580 14,2382,399 2,399 2,399

628 628 6287,207 7,207 7,2074,687 4,346 4,0045,290 5,290 5,290

17,813 17,471 17,130