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Seth Hartley
Senior Air Quality Specialist

Seth is a Senior Air Quality Specialist focusing on the air quality, climate, and public health impacts of transportation. He is an Atmospheric Scientist with 18 years of experience working with clients including the U.S. EPA, Port of San Diego, FHWA, Puget Sound Clean Air Agency, Southern California Association of Governments, and others. He has worked on setting regulatory standards for NO2 and SO2 air pollution and led a national assessment on community exposure to exhaust from ports. Seth has also led air quality and health impact evaluations for large infrastructure projects including California’s High-Speed Rail. He regularly leads international trainings and analyses on mobile source greenhouse gas emissions and supports DOTs and MPOs on the climate and air quality impacts of their transportation plans.

Seth has a B.S. in Physics from North Carolina State University and an M.S. in Atmospheric Sciences from the University of Washington, Seattle.

Insights by Seth Hartley