TABLE 15-1b Air Pollutant Emissions by Type: 1992-2002

TABLE 15-1b Air Pollutant Emissions by Type: 1992-2002

Thousands of short tons

Excel | CSV

All modes 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002
Carbon monoxide 103,890 98,668 93,440 88,216 82,991 80,222 77,644 73,641 72,493 67,987 64,660
Nitrogen oxides 11,445 11,333 11,217 11,102 10,989 11,023 10,820 10,358 10,571 9949 9438
Volatile organic compounds 9,549 9,051 8,551 8,053 7,555 7,326 7,212 7104 6682 6305 5927
PM-10 463 450 437 423 408 395 378 361 347 331 320
PM-2.5 391 378 366 350 337 325 307 295 279 262 254
Lead 0.6 0.5 0.5 0.6 0.5 0.5 0.5 0.5 0.6 N N
Ammonia 188 202 215 229 239 266 258 269 277 281 289
Total 125,927 120,083 114,227 108,374 102,520 99,558 96,620 92,029 90,650 85,115 80,888

KEY: N = data are nonexistent; PM-10 = particulate matter of 10 microns in diameter or smaller; PM-2.5 = particulate matter of 2.5 microns in diameter or smaller.

NOTE: Data may not add to total because of independent rounding.

SOURCES: Except as noted—U.S. Environmental Protection Agency (EPA), Office of Air Quality Planning and Standards, National Emissions Inventory, 2002 Air Pollutant Emission Trends, available at http://www.epa.gov/ttn/, as of March 2005. Lead—Because EPA no longer estimates lead emissions, the data presented on this table are from prior year EPA reports.