Table 14b. Hazardous Material Shipment Characteristics for Toxic by Inhalation (TIH): Percent of Total for 2002 and 1997
Table 14b. Hazardous Material Shipment Characteristics for Toxic by Inhalation (TIH): Percent of Total for 2002 and 1997
[Estimates are based on data from the 2002 and 1997 Commodity Flow Surveys. Because of rounding, estimates may not be additive]
Description | Value (percent) | Tons (percent) | Ton-miles (percent) | |||
---|---|---|---|---|---|---|
2002 | 1997 | 2002 | 1997 | 2002 | 1997 | |
Total | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 |
Toxic by Inhalation | 1.1 | 1.4 | 1.2 | 1.3 | 2.0 | 3.5 |
KEY:
– Represents an 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.
NOTE:
Toxic by inhalation (TIH) gases and volatile liquids that are toxic when
inhaled.
SOURCE:
Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002
Commodity Flow Survey, Hazmat Data, December 2004.