Air Pollution:

Air Quality Implications of Alternative Fuels

RCED-90-143: Published: Jul 9, 1990. Publicly Released: Aug 8, 1990.

Additional Materials:


Office of Public Affairs
(202) 512-4800

Pursuant to a congressional request, GAO reviewed the impact of alternative motor vehicle fuels on air quality.

GAO found that: (1) more than 178 million vehicles are major emitters of hydrocarbons, carbon monoxide, and other air pollutants; (2) over 120 million people live in areas that exceed one or more national air quality standards; (3) the Environmental Protection Agency estimates that alternative fuels are capable of reducing ozone-forming hydrocarbons by at least 80 percent; (4) alternative fuels reduce air pollution and are less likely to form ozone than hydrocarbon; and (5) although alternative fuels offer many advantages to improving air quality, uncertainties remain regarding their specific pollution reduction potential.

Oct 6, 2020

Sep 23, 2020

Aug 6, 2020

Aug 5, 2020

Jul 23, 2020

Jul 14, 2020

Jun 25, 2020

May 29, 2020

Looking for more? Browse all our products here