Motor vehicles are the main source of carbon monoxide (CO). Under multiple sponsorship, two major vehicle emissions studies were conducted: one in Fort McHenry tunnel (under the Baltimore Harbor) in June 1992 and the other in the Tuscarora Mountain tunnel in south-central Pennsylvania (Pennsylvania Turnpike) in September 1992. The cars at both sites tended to be newer than elsewhere (median age was < 4 years), and much better maintained as judged by low CO/CO2 ratios and other emissions characteristics. Measured CO/CO2 ratios agreed with concurrent roadside infrared remote sensing measurements on light-duty vehicles. Remote sensing measurements on heavy-duty diesels were obtained for the first time and were roughly in agreement with the regular (bag sampling) tunnel measurements in both CO/CO2 and HC/CO2 ratios.
Real-World Automotive Emissions: Summary of Studies in the Fort McHenry and Tuscarora Mountain Tunnels
1995
297 pages
Report
No indication
English
Air Pollution & Control , Road Transportation , Environment , Environmental Management & Planning , Air pollution in tunnels , Exhaust emission measurement , Hydrocarbons , Carbon monoxide , Air pollution monitors , Emission factors , Ozone , Forecasting , Automobile exhaust , Air pollution sampling , Exhaust pipes , Remote sensing , Mathematical models , Computerized simulation , Maryland , Pennsylvania , Fort McHenry Tunnel , Tusarora Mountain Tunnel , Volatile organic compounds , Exhaust inventories
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