Definition for the Protocol Test and Permissible Emission Values for Gasoline and Diesel Circulating Vehicles Through the Use of Remote Measurement Systems -2011
Remote sensors can be used to detect visibly polluting circulating gas and diesel vehicles. For this purpose, an exhaust emission measurement campaign was conducted with a remote sensor in 20 points of the Metropolitan Area of the Valley of Mexico (ZMVM acronym in Spanish). The remote sensor was equipped to evaluate “smoke factor” among others, as an indirect measurement of particulate matter from diesel vehicles. Statistically, maximum permissible values were determined for both gas and diesel vehicles. For diesel vehicles, the maximum permissible values for circulating vehicles would allow identifying and correcting 18% of the diesel most polluting fleet. For gas vehicles, the use of remote sensors would allow detecting vehicles that have no emission control systems, or where those systems have very low efficiency.
Also a procedure was generated and documented to carry out measurements in the street, in normal operating conditions.
MARIO MOLINA CENTER FOR STRATEGIC STUDIES ON ENERGY AND THE ENVIRONMENT