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H. Christopher Frey

Glenn E. Futrell Distinguished University Professor of Environmental Engineering, North Carolina State University

H. Christopher Frey is the Glenn E. Futrell Distinguished University Professor of Environmental Engineering in the Department of Civil, Construction, and Environmental Engineering at NC State. Dr. Frey’s research addresses the continuum between energy use, air pollution emissions, exposure to air pollution, adverse health effects, and tools and techniques for developing policy relevant insights. His contributions include quantification of uncertainty in engineering process technologies and emission factors, probabilistic methods for exposure assessment, measurement and modeling of human exposure to air pollution, and measurement and modeling of vehicle emissions.

From 2012 to 2015, Dr. Frey chaired the Clean Air Scientific Advisory Committee of the U.S. Environmental Protection Agency, which advises the EPA Administrator on policy-relevant science pertaining to the National Ambient Air Quality Standards. He has chaired CASAC review panels on ozone, nitrogen oxides, and lead, and served on review panels for carbon monoxide, sulfur oxides, and particulate matter. He served for six years as a member of the EPA Science Advisory Board. For the IPCC’s National Greenhouse Gas Inventory Program, he served as an expert and Lead Author for the chapter on uncertainties for the 2006 IPCC Guidelines on National Greenhouse Gas Emission Inventories. Dr. Frey also served on an expert working group of the World Health Organization to develop guidance on uncertainty in exposure assessment. He was a member of the Board on Environmental Studies and Toxicology (BEST) of the National Research Council and has served on two National Research Council committees. He also was a member of the U.S. EPA’s FIFRA Scientific Advisory Panel.

Dr. Frey has published 126 peer reviewed journal papers, two books, eight book chapters, nine technical commentaries, 166 reviewed conference proceedings papers, 45 other conference proceedings papers, and 74 technical reports, and has contributed to 13 committee reports not counting numerous letter and consensus reports with CASAC. He has given over 350 conference presentations and 150 seminars and other invited presentations. He has been the principal investigator (PI) or Co-PI of over 70 externally sponsored research projects funded by the National Science Foundation, U.S. Environmental Protection Agency, U.S. Department of Transportation, U.S. Department of Energy, National Oceanic and Atmospheric Administration, California Air Resources Board, NC Department of Transportation, Health Effects Institute, and others.

Dr. Frey teaches courses in air pollution control, air quality, environmental exposure and risk analysis, transportation energy and environment, and sustainability in civil engineering.

Dr. Frey is a Fellow of the Air & Waste Management Association and of the Society for Risk Analysis. He served on the Board of Directors of A&WMA, and was President of SRA in 2006. He has a B.S. in mechanical engineering from the University of Virginia, a master of engineering in mechanical engineering from Carnegie Mellon University, and Ph.D. in engineering and public policy from Carnegie Mellon.


  • –present
    Glenn E. Futrell Distinguished University Professor, North Carolina State University


  • 1991 
    Carnegie Mellon University, Engineering and Public Policy

Professional Memberships

  • Air & Waste Management Association
  • Society for Risk Analysis


1999 Chauncey Starr Award, Society for Risk Analysis; 2012 Lyman A. Ripperton Environmental Educator Award from the Air & Waste Management Association