Table 2-6M Hazardous Materials Shipments by Hazard Class: 2012
Wednesday, January 6, 2016
| Hazard class | Description | Value | Metric Tonnes | Tonne-kilometers1 | Kilometers | |||
|---|---|---|---|---|---|---|---|---|
| $ Billions | Percent | Millions | Percent | Billions | Percent | Average distance per shipment | ||
| Class 1 | Explosives | 18.4 | 0.8 | 3.6 | 0.2 | 1.5 | 0.3 | 1,351.8 |
| Class 2 | Gases | 125.1 | 5.4 | 149.5 | 6.4 | 48.5 | 10.8 | 91.7 |
| Class 3 | Flammable liquids | 2,016.7 | 86.4 | 1,999.0 | 85.4 | 298.7 | 66.5 | 149.7 |
| Class 4 | Flammable solids | 5.4 | 0.2 | 10.3 | 0.4 | 8.5 | 1.9 | 909.2 |
| Class 5 | Oxidizers and organic peroxides | 7.6 | 0.3 | 10.9 | 0.5 | 8.0 | 1.8 | 703.3 |
| Class 6 | Toxic (poison) | 15.2 | 0.7 | 6.9 | 0.3 | 5.3 | 1.2 | 825.6 |
| Class 7 | Radioactive materials | 12.3 | 0.5 | S | S | 0.6 | Z | 54.7 |
| Class 8 | Corrosive materials | 75.9 | 3.2 | 113.7 | 4.9 | 55.2 | 12.3 | 424.8 |
| Class 9 | Miscellaneous dangerous goods | 58.0 | 2.5 | 46.3 | 2.0 | 23.5 | 5.2 | 852.9 |
| Total | 2,334.4 | 100.0 | 2,340.7 | 100.0 | 449.0 | 100.0 | 183.5 | |
KEY: S = data are not published because of high sampling variability or other reasons; Z = rounds to zero.
1 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
NOTES: 1 metric tonne = 1.1023 short tons. 1 tonne-kilometer = .6849 ton-miles. 1 kilometer = .6214 miles. Value-of-shipments estimates have not been adjusted for price changes. Numbers and percents may not add to totals due to rounding.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and U.S. Department of Commerce, Census Bureau, 2012 Commodity Flow Survey, Hazardous Materials (Washington, DC: February 2015), table 2a, available at www.census.gov/econ/cfs/2012/ec12tcf-us-hm.pdf as of July 2015.