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Office of Planning, Environment, & Realty (HEP)

Transportation Air Quality Selected Facts and Figures


What's It All About?

This brochure provides an overview of facts and figures regarding the linkages between transportation and air quality. The focus of this brochure is primarily on transportation-related emissions trends, policies, technologies, and standards that effect on-road mobile sources, including automobiles, light-duty trucks, and heavy-duty trucks.

Updated: 5/3/2016
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