Office of Operations Freight Management and Operations

Table 5-14. Current and Future Particulate Matter (PM-10) Emissions by Freight Transportation Mode: 2002, 2010, 2020

Freight emissions of PM-10 are forecast to decline by one-half over the next two decades. 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. New rules requiring the use of ultra low sulfur diesel (ULSD) fuel in heavy-duty trucks and other diesel-powered highway vehicles will reduce emissions of PM and enable the use of advanced pollution control technologies to meet 2007 emissions standards.

Table in Excel format | Historical data

empty Cell Tons
Percent Change,
Percent Change,
Heavy-duty trucks 120,000 65,380 34,760 -46 -71
Freight rail 21,300 (R) 15,730 (R) 12,990 (R) -26 (R) -39
Commercial marine 44,000 (R) 42,930 (R) 44,080 (R) -2 (R) 0
Air freight 300 290 270 -3 -10
Freight total 185,600 124,329 (R) 92,099 (R) -33 (R) -50

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, located at:

To view Excel files, you can use the Microsoft Excel Viewer.

Office of Operations