VEHICLE TESTING TO DETERMINE FEASIBILITY OF EMISSION INSPECTION AT ALTITUDE

A laboratory study was conducted on 1968-1972 model vehicles at altitude to evaluate vehicle emission reduction concepts investigated and applied at lower elevations. Since vehicle exhaust hydrocarbons and carbon monoxide emissions are intrinsically high at higher elevations, it was suspected that emission reducing strategies might not prove significantly beneficial at higher elevations. Furthermore, emission reduction factors by engine maintenance are not defined. The study quantitatively defined hydrocarbon, nitrogen oxides, and carbon monoxide emission reduction. Direct maintenance cost was determined. Key mode and idle emission inspection concepts are discussed.

• Corporate Authors:

  Automotive Testing Laboratories, Incorporated

  19900 Colfax Avenue
  Aurora, CO  United States  80011

  Environmental Protection Agency

  401 M Street, SW
  Washington, DC  United States  20460
• Authors:
  • Liljedahl, D R
  • Porter, H E
• Publication Date: 1972-9

Media Info

• Pagination: 361 p.

Subject/Index Terms

• TRT Terms: Air quality management; Alternatives analysis; Altitude; Analysis; Automobiles; Carbon monoxide; Correlation analysis; Costs; Exhaust gases; Factor analysis; Feasibility analysis; Hydrocarbons; Inspection; Maintenance management; Measurement; Motor vehicles; Nitric oxide; Nitrogen oxides; Reduction (Chemistry); Statistics; Technology transfer; Tests
• Uncontrolled Terms: Cost analysis; Elevation; Maintenance costs
• Geographic Terms: Colorado
• Old TRIS Terms: Air pollution abatement; Reduction
• Subject Areas: Data and Information Technology; Education and Training; Finance; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00143785
• Record Type: Publication
• Source Agency: National Technical Information Service
• Contract Numbers: EPA-68-01-0439
• Files: TRIS
• Created Date: Nov 17 1977 12:00AM