Table 2a. Hazardous Material Shipment Characteristics by Hazard Class: 2002
Table 2a. Hazardous Material Shipment Characteristics by Hazard Class: 2002
[Estimates are based on data from the 2002 Commodity Flow Survey. Because of rounding, estimates may not be additive]
Hazard class and description | Value | Tons | Ton-miles | Average miles per shipment |
|||
---|---|---|---|---|---|---|---|
2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
Total | 660,181 | 100.0 | 2,191,519 | 100.0 | 326,727 | 100.0 | 136 |
Class 1, Explosives | 7,901 | 1.2 | 5,000 | 0.2 | 1,568 | 0.5 | 651 |
Class 2, Gases | 73,932 | 11.2 | 213,358 | 9.7 | 37,262 | 11.4 | 95 |
Class 3, Flammable liquids | 490,238 | 74.3 | 1,788,986 | 81.6 | 218,574 | 66.9 | 106 |
Class 4, Flammable solids | 6,566 | 1.0 | 11,300 | 0.5 | 4,391 | 1.3 | 158 |
Class 5, Oxidizers and organic peroxides | 5,471 | 0.8 | 12,670 | 0.6 | 4,221 | 1.3 | 407 |
Class 6, Toxic (poison) | 8,275 | 1.3 | 8,459 | 0.4 | 4,254 | 1.3 | 626 |
Class 7, Radioactive materials | 5,850 | 0.9 | 57 | – | 44 | – | S |
Class 8, Corrosive materials | 38,324 | 5.8 | 90,671 | 4.1 | 36,260 | 11.1 | 301 |
Class 9, Miscellaneous dangerous goods | 23,625 | 3.6 | 61,018 | 2.8 | 20,153 | 6.2 | 368 |
KEY:
– Represents and estimate equal to zero or less than 1 unit of
measure.
S Estimate does not meet publication standards because of highly sampling
variability or poor response quality.
SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Hazmat Data, December 2004.