IMPACT OF ENGINE TECHNOLOGY ON THE VEHICULAR EMISSIONS IN MEXICO CITY

The metropolitan area of Mexico City is the urban area of the country that presents the most critical environmental problem due to fuel consumption. Attempting to reduce the ambient concentration of pollutants, the environmental program adopted consisted of a broad series of strategies designed to improve the air quality. Modification of fuel formulation, which include composition and physical properties, provide a particularly effective way to reduce emissions. The reformulated gasoline in Mexico has reduced aromatics, olefins, and benzene contents as well as a lower Reid vapor pressure. The regulated emissions (carbon monoxide, total hydrocarbons, and nitrogen oxides) were evaluated for each vehicle as well as the speciated hydrocarbons present in the exhaust emission. With these data, the authors estimated the ozone-forming potential of the fuels and correlate the results with the technology of the vehicles. When these data are compared with those obtained in United States, there is an important difference in the technological devices related to emission control in vehicles of the Mexican market. Moreover, the results strongly suggest that emission standards for new vehicles sold in Mexico must be tightened further in order to equal those demanded in other countries. (A)

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  • Corporate Authors:

    American Chemical Society

    1155 16th Street, NW
    Washington, DC  United States  20036
  • Authors:
    • SCHIFTER, I
    • DIAZ M VERA, L
    • Castillo, M
    • RAMOS, F
    • AVALOS, S
    • LOPEZ-SALINAS, E
  • Publication Date: 2000-7-1

Language

  • English

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Filing Info

  • Accession Number: 00796622
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 2 2000 12:00AM