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Air pollution meeting future electricity demand will increase emission of some harmful substances.

United States. General Accounting Office.
[Washington, D.C.] : U.S. General Accounting Office, [2002] 2002

Calculation of age distributions in the nonroad model growth and scrappage

United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division, author.
[Washington, D.C.] : United States Environmental Protection Agency, Office of Air and Radiation, 2005. 2005

Nonroad engine population estimates

United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division, author.
[Washington, D.C.] : United States Environmental Protection Agency, 2010. 2010