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General

Legacy ID
201

Air Pollutants - Box 1

Air Pollutants - Box 1 Data on Toxic Air Pollutants

While the U.S. Environmental Protection Agency (EPA) has made annual estimates of emissions of six principal (so-called, criteria) air pollutants covering several decades, it has only recently concentrated on the larger set of hazardous (...

Figure 2 - Aerospace Exports and Imports

Figure 2 - Aerospace Exports and Imports

Excel | CSV | Table Version

SOURCE: Aerospace Industries Association, Aerospace Statistics, available at http://www.aia-aerospace.org/stats/aero_stats/aero_stats.cfm, as of Feb. 24, 2002.

State of Transportation Statistics - Box 1

State of Transportation Statistics - Box 1 The Unique Characteristics of Transportation Data

Transportation is about movement. Each movement of people or goods has a starting and ending point and follows a route. The size of such movements, as well as the potential demands for future travel...