Highway Vehicle Air Pollutant Emissions: 2002-2016

Carbon Monoxide

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Nitrogen Oxide

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Volatile Organic Compounds

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Particulate Matter

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Sulfur Dioxide

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Ammonia

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Notes:

Indices are calculated using data on highway vehicle emissions only. Particulate matters include PM without condensibles.

Key: PM-10 = airborne particulates of less than 10 microns; PM-2.5 = airborne particulates of less than 2.5 microns.

Sources:

As cited in U.S. Department of Transportation, Bureau of Transportation Statistics, National Transportation Statistics, tables 4-45 through 4-50, available at https://www.bts.gov/.

Last Updated: November 2017 | Retrieved: November 2017