Transportation energy data book: edition 23 - Oak Ridge National ...

12–10
Since 1985, diesel-powered vehicles have been responsible for more than half of highway
vehicle emissions of particulate matter (PM-10). Heavy vehicles are clearly the main source.
Table 12.9
Emissions of Particulate Matter (PM-10) from Highway Vehicles, 1980–2001 a
(thousand short tons)
Source category 1980 1985 1990 1995 2000 2001
Percent of total,
2001
Gasoline powered
Light vehicles & motorcycles 141 86 57 53 51 51 23.4%
Light trucksb 49 37 31 32 31 31 14.2%
Heavy vehicles 30 23 17 13 10 10 4.6%
Total 220 146 105 98 92 92 42.2%
Diesel powered
Light vehicles 9 13 11 4 1 1 0.5%
Light trucksb 12 8 5 3 1 1 0.5%
Heavy vehicles 191 240 266 199 135 125 57.3%
Total 212 262 282
Total
206 137 127 58.3%
Highway vehicle total 432 408 387 304 230 218 100.0%
Percent diesel 49.1% 64.2% 72.9% 67.8% 59.6% 58.3%
Source:
U. S. Environmental Protection Agency, National Emission Inventory Air Pollutant Emission Trends website
www.epa.gov/ttn/chief/trends (Additional resources: www.epa.gov/oar/oaqps)
Note:
Because PM-10 is fine particle matter less than 10 microns, it also includes PM-2.5. Specific data for PM-2.5
are shown on Tables 12.10 and 12.11.
a The sums of subcategories may not equal total due to rounding.
b Less than 8,500 pounds.
TRANSPORTATION ENERGY DATA BOOK: EDITION 23—2003