Table 1-57: U.S. Hazardous Materials Shipments by Hazard Class, 2002

Table 1-57: U.S. Hazardous Materials Shipments by Hazard Class, 2002

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Hazard class and description Value Tons Ton-miles Average miles per shipment
($ billion) Percent (millions) Percent (billions) Percent
Class 1. Explosives 7.9 1.2 5.0 0.2 1.6 0.5 651
Class 2. Gases 73.9 11.2 213.4 9.7 37.3 11.4 95
Class 3. Flammable liquids 490.2 74.3 1,789.0 81.6 218.6 66.9 106
Class 4. Flammable solids 6.6 1.0 11.3 0.5 4.4 1.3 158
Class 5. Oxidizers and organic peroxides 5.5 0.8 12.7 0.6 4.2 1.3 407
Class 6. Toxics (poison) 8.3 1.3 8.5 0.4 4.3 1.3 626
Class 7. Radioactive materials 5.9 0.9 0.1 S
Class 8. Corrosive materials 38.3 5.8 90.7 4.1 36.3 11.1 301
Class 9. Miscellaneous dangerous goods 23.6 3.6 61.0 2.8 20.2 6.2 368
Total 660.2 100.0 2,191.5 100.0 326.7 100.0 136

KEY: − = less than 1 unit of measure or rounds to zero; S = data were not published because of high sampling variability or other reasons.

NOTE

Numbers may not add to totals due to rounding.

SOURCE

U.S. Department of Transportation, Bureau of Transportation Statistics, U.S. Department of Commerce, Census Bureau, 2002 Economic Census, Transportation, 2002 Commodity Flow Survey, Hazardous Materials (Washington, DC: December 2004), table 2a.