Contractor utilized remote sensing to monitor tailpipe emission levels from employee vehicles as they enter facility parking lots to identify high emitting vehicles. These vehicles were subsequently repaired by using a series of monetary incentives to the driver/owner to make the necessary repairs. The emission reductions achieved were monitored by a series of remote sensing field tests as well as quantified by an approved emission test protocol utilizing a test facility with a chassis dynamometer.
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El Segundo, California, was the site of the vehicle emission testing. The reduction in emissions would be felt for some distance east of that area as the prevailing winds blow from west to east. Hughes is expanding the program to their Long Beach and Fullerton sites, thus widening the areas of emission reduction. Some benefits will be realized wherever these vehilcles travel.
Emission reductions can be estimated using the result from a recent remote sensing study which indicates that repairing the highest emitting vehicles (i.e., greater than 3% CO tailpipe emissions level) should reduce emissions by about 0.5 tons CO/yr per vehicle. If the highest 10% of the 1.3 million vehicles covered were repaired, the net emission reduction would be 260 tons CO/day, or about 5.3% of the total CO emissions from mobile sources.
Summary of results and conclusions of the remote sensing technology.