Cold start automotive emissions in Fairbanks, Alaska : an interim report

Authors

• L. E. Leonard

Files

Description

Measurements of the cold start and warm-up emissions of more than one hundred in-use motor vehicles in the Fairbanks area were performed during the winter of 1974-75. It was found that, for densely populated areas of the city where large numbers of vehicles are started and allowed to warm up daily, the major portion of the carbon monoxide (CO) emitted to the ambient is produced during the cold start and warm-up phase of vehicle operation. In some areas the cold start CO contribution could be as much as 76% of the total. It was also found that none of the pollution control devices presently in common use were effective in reducing the cold start CO emissions. Thus, for the cold start phase of operation the older vehicles were not greater emitters of CO than were the newer vehicles. This investigation also shows that the most effective way of reducing cold start emissions on a per vehicle basis is to utilize smaller engine size, as evidenced by the significantly lower CO emissions produced during cold start by the foreign vehicles tested when compared to the American vehicles.

Publication Date

7-17-1975

Keywords

Automobiles, Cold weather operation, Motors, Exhaust gas, Air pollution, Alaska, Fairbanks

Recommended Citation

Leonard, L. E., "Cold start automotive emissions in Fairbanks, Alaska : an interim report" (1975). GI Reports. 93.
https://ualaska.researchcommons.org/uaf_gi_reports/93

Handle

http://hdl.handle.net/11122/15393