Figure 15-2 - Selected Air Pollutants by Mode: 2002
Figure 15-2 - Selected Air Pollutants by Mode: 2002
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NOTES: EPA no longer estimates lead emissions. Modal shares in 2000 were: highway gasoline vehicles, 4.1%; aircraft, 95.9%. Other includes recreational boats, airport service vehicles, and road maintenance equipment.
SOURCE: U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, National Emissions Inventory, 2002 Air Pollutant Emission Trends, available at http://www.epa.gov/ttn/, as of March 2005.