Table 1-53 U.S. Hazardous Materials Shipments by Hazard Class, 1997
Wednesday, November 21, 2012
Table 1-53 U.S. Hazardous Materials Shipments by Hazard Class, 1997
| Hazard Class and Description | Value ($ billion) | Percent | Tons (thousands) | Percent | Ton-miles (millions) | Percent | Average miles per shipment |
|---|---|---|---|---|---|---|---|
| Class 1. Explosives | 4.3 | 0.9 | 1.5 | 0.1 | S | S | 549 |
| Class 2. Gases | 40.9 | 8.8 | 115.0 | 7.3 | 21.8 | 8.3 | 66 |
| Class 3. Flammable liquids | 335.6 | 72.0 | 1,264.3 | 80.8 | 160.0 | 60.6 | 73 |
| Class 4. Flammable solids | 3.9 | 0.8 | 11.8 | 0.8 | 9.6 | 3.6 | 838 |
| Class 5. Oxidizers and organic peroxides | 4.5 | 1.0 | 9.2 | 0.6 | 4.5 | 1.7 | 193 |
| Class 6. Toxics (poison) | 10.1 | 2.2 | 6.4 | 0.4 | 2.8 | 1.1 | 402 |
| Class 7. Radioactive materials | 2.7 | 0.6 | 0.9 | 0.1 | RZ | RZ | 445 |
| Class 8. Corrosive materials | 40.4 | 8.7 | 91.6 | 5.9 | 41.2 | 15.6 | 201 |
| Class 9. Miscellaneous dangerous goods | 23.9 | 5.1 | 65.3 | 4.2 | 22.7 | 8.6 | 323 |
| Total | 466.4 | 100.0 | 1,565.2 | 100.0 | 263.8 | 100.0 | 113 |
KEY: S = data were not published because of high sampling variability or other reasons; RZ = less than 1 unit of measure or equal to zero.
NOTE: 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, 1997 Economic Census 1997 Commodity Flow Survey, Hazardous Materials (Washington, DC: December 1999), table 2.