Table of Contents Past Issues Fall 1999 Time for a Tune-up One of the worst things that can happen in traffic is to get stuck behind a car, truck, or bus spewing stinky smoke. These vehicles not only offend the nostrils, they re a menace to air quality. The emissions of one poorly maintained car equal those of 28 properly functioning ones. Anyone who sees a vehicle releasing dirty smoke from its tailpipe for more than 10 consecutive seconds can take action.
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