title: The effects of altitude on heavy-duty diesel truck on-road emissions.
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.
authors.affiliation: Department of Chemistry and Biochemistry, University of Denver, Denver, Colorado 80208, USA. gbishop@du.edu
authors.forename: G A
authors.initials: GA
authors.lastname: Bishop
authors.forename: J A
authors.initials: JA
authors.lastname: Morris
authors.forename: D H
authors.initials: DH
authors.lastname: Stedman
authors.forename: L H
authors.initials: LH
authors.lastname: Cohen
authors.forename: R J
authors.initials: RJ
authors.lastname: Countess
authors.forename: S J
authors.initials: SJ
authors.lastname: Countess
authors.forename: P
authors.initials: P
authors.lastname: Maly
authors.forename: S
authors.initials: S
authors.lastname: Scherer
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000531:Altitude; D002140:California; D002248:Carbon Monoxide / Q000032:analysis; D004784:Environmental Monitoring / Q000379:methods; D005742:Gasoline; D006838:Hydrocarbons / Q000032:analysis; D009569:Nitric Oxide / Q000032:analysis; D011312:Pressure; D013557:Switzerland; D013696:Temperature; D013781:Texas; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D005742:Gasoline; D006838:Hydrocarbons; D001335:Vehicle Emissions; D009569:Nitric Oxide; D002248:Carbon Monoxide