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原文传递 "On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area: Year 2 ”

题名：	"On-Road Remote Sensing of Automobile Emissions in the Los Angeles Area: Year 2 ”
作者：	Sajal S. Poldiarel, Gaiy A. Bishop and Donald H. Stedman
关键词：	Motor Vehicle Emissions Remote Sensor Carbon Monoxide Nitrogen Oxides National Emissions Inventory Environmental Protection Agency Remote Sensing Study Hydrocarbons Ozone Atmospheric Pollutants Air Quality Standards
摘要：	The University of Denver (DU)conducted the second year of a five-year remote sensing study in die Los Angeles, CA area. The remote sensor used in this study is capable of measuring the ratios of carbon monoxide (CO), hydrocarbons (HC) and nitrogen oxides (NO) to carbon dioxide (CO2) in motor vehicle exhaust. From these ratios, DU calculated the percent concentrations of CO, CO2, HC and NO in the motor vehicle exhaust which would be observed by a tailpipe probe, corrected for water and any excess oxygen not involved in combustion. The system used in this study was configured to determine the speed and acceleration of die vehicle, and was accompanied by a video system to record die license plate of die vehicle. Eight days of fieldwork between May 30 and June 6,2000 were conducted on die uphill exit ramp from 91 N to 60W in Riverside, CA. A database was compiled containing 23,303 records for which die State of California provided make and model year information. All of these records contained valid measurements for at least CO and CO2 and 23,230 contained measurements for HC and 23,285 for NO data. The database, along with earlier databases and reports, can be found at www.feat.biochem.du.edu . The mean percent CO, HC and NO were determined to be 050%, 0.12%, and 0.042%, respectively with an average model year of 1993.3. The mean emissions in gm/kg of fuel consumed for CO, HC, and NO were 61.7, 2.2 and 6.0. The fleet emissions measured in this study exhibit a gamma distribution, with the dirtiest 10% of the fleet responsible for 73%, 78%, and 51% of the CO, HC, and NO emissions, respectively.
报告类型：	科技报告