The effects of altitude on heavy-duty diesel truck on-road emissions |
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Authors: | Bishop G A Morris J A Stedman D H Cohen L H Countess R J Countess S J Maly P Scherer S |
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Affiliation: | Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208, USA. gbishop@du.edu |
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Abstract: | On-road measurements of carbon monoxide, hydrocarbons, and nitric oxide from 5772 heavy-duty diesel trucks at five locations in the United States and Europe show slightly increasing emissions with increasing altitude. The result for nitric oxide showed a statistically significant increase of 4.1 +/- 1 gNO/kg of fuel consumed/km increase in altitude. The increases for CO and HC were also statistically significant. |
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