Freight Facts and Figures 2008
Table 5-14. Current and Projected Particulate Matter Emissions by Freight Transportation Mode: 2002, 2010, and 2020
As in the case of NOx, trucks are by far the largest contributor to freight emissions nationally, producing two-thirds PM-10 from the freight sector. Freight emissions of PM-10 are forecast to decline by one-half over the next two decades. The required use of ULSD fuel in heavy-duty trucks and other diesel-powered highway vehicles will reduce PM emissions and enable the use of advanced pollution control technologies to meet emissions standards.
 |
Tons 2002 |
Tons 2010 |
Tons 2020 |
Percent change, 2002-2010 |
Percent change, 2002-2020 |
|---|---|---|---|---|---|
| Heavy-duty trucks | 120,000 | 65,380 | 34,760 | -46 | -71 |
| Freight rail | 21,300 | 15,730 | 12,990 | -26 | -39 |
| Commercial marine | 44,000 | 42,930 | 44,080 | -2 | 0 |
| Air freight | 300 | 290 | 270 | -3 | -10 |
| Freight total | 185,600 | 124,329 | 92,099 | -33 | -50 |
Source:
U.S. Department of Transportation, Federal Highway Administration, Assessing the Effects of Freight Movement on Air Quality at the National and Regional Level, Final Report, April 2005, available at www.fhwa.dot.gov/environment/freightaq/ as of April 24, 2008
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