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- W2211301672 abstract "An analysis of the CO and hydrocarbons exhaust emissions of over 30,000 vehicles was done during ten days in February 1991, at five sites within Mexico City using the Fuel Efficiency Automotive Test. This technique, developed by the University of Denver, consists of an infrared beam that crosses a traffic road at exhaust level and is analyzed 50 times per second by a detector that is connected to a computer and a video camera that records the license plate of the vehicle being monitored. Of the 26,000 plates that could be read, over 20,000 were from the DF and, from the Motor Vehicle Registry Data Base (Programa de Placa Permanente), information about the car could be obtained, such as make and model year. A global analysis of the % CO emissions vs. number of vehicles shows a broad distribution, quite different from that obtained by similar studies in countries where the use of the catalytic converter is widespread. An analysis of the distribution of emissions vs. model year and make show how the technical improvements are generally reflected on a decrease of emissions on newer models. From these measurements one can estimate what the result of different scraping or tune-up programs would be." @default.
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- W2211301672 date "1970-01-01" @default.
- W2211301672 modified "2023-09-23" @default.
- W2211301672 title "On Road Remote Sensing Of Automotive COAnd HC Emissions In Mexico City" @default.
- W2211301672 doi "https://doi.org/10.2495/air930431" @default.
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