Measurement of on-road vehicle emission factors in the California South Coast Air Basin. Volume 1. Regulated emissions. Final report

Technical Report · Thu Jun 01 04:00:00 EDT 1989

OSTI ID:5576640

Ingalls, M N; Smith, L R; Kirksey, R E

This project sampled running emissions from over 40,000 in-use vehicles in normal traffic operation in a tunnel. Slow-speed emissions, evaporative emissions, and cold-start emissions were sampled from over 340 cars in a parking garage. Sampling was accomplished by measuring the pollutant concentrations in the inlet and exhaust air of these two enclosed spaces. The difference between the inlet and exhaust concentrations was the vehicle contribution to the pollutant concentrations. Airflow as well as vehicle count and speed were determined during each sample period. These variables, when used with the pollutant concentrations, enabled emissions per vehicle to be calculated. Description of the sampling instrumentation and procedures for traffic variables and regulated emissions, as well as the regulated emission results are presented here. Unregulated emission measurements will be presented in Volume II.

• Research Organization: Southwest Research Inst., San Antonio, TX (USA)
• OSTI ID: 5576640
• Report Number(s): PB-89-220925/XAB; SWRI--1604
• Country of Publication: United States
• Language: English

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33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
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Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
AIR POLLUTION MONITORING
AIR QUALITY
CALIFORNIA
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DATA
DOCUMENT TYPES
ENVIRONMENTAL QUALITY
EXHAUST GASES
FEDERAL REGION IX
FLUIDS
GASEOUS WASTES
GASES
HYDROCARBONS
INDOOR AIR POLLUTION
INFORMATION
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
POLLUTION
POLLUTION REGULATIONS
PROGRESS REPORT
QUALITY ASSURANCE
REGULATIONS
STATISTICAL DATA
SURVEYS
TUNNELS
UNDERGROUND FACILITIES
USA
VEHICLES
WASTES