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A Study Of The Effectiveness Of Tune-Ups In Controlling Vehicle Emissions In Salt Lake County, Howard B. Mcintosh

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The Federal Government has placed stringent standards on the manufacturers of automobiles to control vehicle emissions. Few states standards have been set for used vehicles to insure the vehicle continues to meet this standard.

Studies have shown that vehicles that are properly tuned are emitting less harmful pollutants from the exhaust. Additional studies are needed to determine if cars are being adequately turned to meet exhaust emissions.

The study showed 93 per cent of the new 1971 model cars were not meeting the standard established by the Environmental Protection Agency. Eighty-seven per cent of the 1970 model cars and 83 …