Trends in emissions control technologies for 1983-1987 model-year California certified light-duty vehicles
An analysis of data provided by vehicle manufacturers during the California emissions certification process has been performed for 1983-1987 model-year light-duty vehicles. The major change in emission control system design was a decrease in the use of secondary air injection which was used on 75% of 1983 vehicles, but only 50% of 1986 and 1987 vehicles. Exhaust gas recirculation was used on 90% of vehicles from 1983-1987. The sales-weighted certification emission levels of gasoline-powered light-duty vehicles were 0.23 gmile HC, 3.1 gmile CO, and 0.5 gmile NO/sub x/ in 1983. Levels of HC and CO were approximately constant at 0.20 gmile and 2.7 gmile, respectively, from 1984-1987 with NO/sub x/ leves decreasing to 0.4 gmile for 1987.
- OSTI ID:
- 5213252
- Report Number(s):
- CONF-871142-
- Resource Relation:
- Conference: International fuels and lubricants meeting and exposition, Toronto, Canada, 2 Nov 1987; Other Information: Technical Paper 872164
- Country of Publication:
- United States
- Language:
- English
Similar Records
Impacts of ethanol fuel level on emissions of regulated and unregulated pollutants from a fleet of gasoline light-duty vehicles
Draft regulatory impact analysis and oxides of nitrogen pollutant-specific study. Control of air pollution from new motor vehicles and new motor-vehicle engines: gaseous-emission regulations for 1987 and later-model-year light-duty vehicles, light-duty trucks, and heavy-duty engines; particulate-emission regulations for 1987 and later-model year-heavy-duty diesel engines
Related Subjects
33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
CARBON MONOXIDE
AIR POLLUTION MONITORING
NITROGEN OXIDES
VEHICLES
EMISSION
EXHAUST RECIRCULATION SYSTEMS
AIR POLLUTION CONTROL
CALIFORNIA
DATA ANALYSIS
EXHAUST GASES
FUEL INJECTION SYSTEMS
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL
EQUIPMENT
EXHAUST SYSTEMS
FEDERAL REGION IX
FLUIDS
FUEL SYSTEMS
GASEOUS WASTES
GASES
NITROGEN COMPOUNDS
NORTH AMERICA
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
USA
WASTES
020800* - Petroleum- Waste Management
330701 - Emission Control- Nitrogen Oxides
330702 - Emission Control- Carbon Monoxide
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)