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Freight Facts and Figures 2009

Tables 2-5 and 2-5M. Hazardous Materials Shipments by Hazard Class: 2002

Flammable liquids, especially gasoline, are the predominant hazardous material transported in the United States.  In terms of ton miles, flammable liquids account for about 67 percent of total ton miles of hazardous materials shipments.  The next largest class of hazardous materials in terms of ton miles is gases at about 11 percent.

Table 2-5 (standard units)

Table in Excel format

Hazard Class Description Value -
$ Billions
Value -
Percent
Tons -
Millions
Tons -
Percent
Ton miles -
Billions
Ton miles -
Percent
Class 1 Explosives 7.9 1.2 5.0 0.2 1.6 0.5
Class 2 Gases 73.9 11.2 213.4 9.7 37.3 11.4
Class 3 Flammable liquids 490.2 74.3 1,789.0 81.6 218.6 66.9
Class 4 Flammable solids 6.6 1.0 11.3 0.5 4.4 1.3
Class 5 Oxidizers and organic peroxides 5.5 0.8 12.7 0.6 4.2 1.3
Class 6 Toxics (poison) 8.3 1.3 8.5 0.4 4.3 1.3
Class 7 Radioactive materials 5.9 0.9 <1 <1 <1 <1
Class 8 Corrosive materials 38.3 5.8 90.7 4.1 36.3 11.1
Class 9 Miscellaneous dangerous goods 23.6 3.6 61.0 2.8 20.2 6.2
Total Empty cell. 660.2 100.0 2,191.5 100.0 326.7 100.0

Note:

Numbers and percents may not add to totals due to rounding.

Source:

U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, Census Bureau, 2002 Commodity Flow Survey, Hazardous Materials (Washington, DC: December 2004), table 2a, available at www.bts.gov/publications/commodity_flow_survey/2002/united_states/ as of March 30, 2009.

 

Table 2-5M (metric units)

Table in Excel format

Hazard Class Description Value -
$ Billions
Value -
Percent
Metric
tonnes -
Millions
Metric
tonnes -
Percent
Tonne
kilometers -
Billions
Tonne
kilometers -
Percent
Class 1 Explosives 7.9 1.2 4.5 0.3 2.3 0.5
Class 2 Gases 73.9 11.2 193.6 10.7 54.4 11.4
Class 3 Flammable liquids 490.2 74.3 1,623.0 90.0 319.1 66.9
Class 4 Flammable solids 6.6 1.0 10.3 0.6 6.4 1.3
Class 5 Oxidizers and organic peroxides 5.5 0.8 11.5 0.6 6.2 1.3
Class 6 Toxics (poison) 8.3 1.3 7.7 0.4 6.2 1.3
Class 7 Radioactive materials 5.9 0.9 0.1 <.1 0.1 <.1
Class 8 Corrosive materials 38.3 5.8 82.3 4.6 52.9 11.1
Class 9 Miscellaneous dangerous goods 23.6 3.6 55.4 3.1 29.4 6.2
Total Empty cell. 660.2 100.0 1,803.6 100.0 477.0 100.0

Note:

1 metric tonne = 1.1 short tons; 1 tonne kilometer = 0.7 ton-miles. Number and percents may not add to totals due to rounding.

Source:

U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, Census Bureau, 2002 Commodity Flow Survey, Hazardous Materials (Washington, DC: December 2004), table 2a, available at www.bts.gov/publications/commodity_flow_survey/2002/united_states/ as of April 13, 2009.

 


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