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

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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
Hazard class and description	($ billion)	Percent	(millions)	Percent	(billions)	Percent	Average miles per shipment
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.