TABLE 15-4 Carbon Dioxide Emissions by Type of Highway Vehicle: 2003

TABLE 15-4 Carbon Dioxide Emissions by Type of Highway Vehicle: 2003

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  TgCO2Eq Percent
Passenger cars 633.7 43.3
Light-duty trucks 478.8 32.7
All other trucks 341.2 23.3
Buses 8.9 0.6
Total, highway 1,462.5 100.0

KEY: TgCO2Eq = teragrams of carbon dioxide equivalent. 1 teragram = 1 trillion grams.

NOTE: Data may not add to total and percentages may not add to 100 because of independent rounding.

SOURCE: U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2003 (Washington, DC: April 2005), table 2-17.