VEHICLE INSPECTION AND MAINTENANCE, AND AIR POLLUTION IN MEXICO CITY

Mexico City has a serious air pollution problem exacerbated by vehicle emissions. A motor vehicle inspection and maintenance program has been established to monitor vehicle emissions at the tail pipe to ensure that emission control systems work properly. Carbon monoxide and hydrocarbon exhaust emission levels for over one million private and public vehicles have been measured. This information has been collected in a database and can be used to test anti-pollutant policies as well as serve as a performance quality index for vehicle manufacturers. An analysis of data reveals the existence of a exhaust emission distribution curve for each manufacturer and model. Analysis also shows that not all new vehicles pass the inspection and maintenance test and vehicles fitted with catalytic converters and used for public transportation have a larger pollutant index on average than those in private use.

Language

  • English

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Filing Info

  • Accession Number: 00821088
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 27 2001 12:00AM