H. Christopher Frey is a professor of environmental engineering in the Department of Civil, Construction, and Environmental Engineering at NC State. His research interests are measurement and modeling of real-world fuel use and emissions of onroad and nonroad vehicles; modeling and evaluation of advanced energy conversion (e.g., combustion, gasification) and environmental control systems; development and application of methods for quantification of variability and uncertainty and for sensitivity analysis in environmental systems models; and exposure and risk analysis.

Dr. Frey teaches CE 476/576 Air Pollution Control and CE 479/579 Air Quality, and team teaches CE/NE 772 Environmental Exposure and Risk Assessment.

Dr. Frey currently serves on the U.S. Environmental Protection Agency’s Clean Air Scientific Advisory Committee (CASAC) and on the Board of Environmental Studies and Toxicology of the National Research Council. In recent years, he has served on an EPA Science Advisory Board panel on expert elicitation, National Research Council committees on review of the toxicological assessment of tetrachloroethylene and of EPA’s New Source Review program, a NARSTO assessment of multipollutant air quality management, and a World Health Organization working group on uncertainty in exposure assessment. He was a lead author for 2006 guidance by the Intergovernmental Panel on Climate Change (IPCC) regarding uncertainty in greenhouse gas emission inventories.

Dr. Frey is a Fellow and Past President of the Society for Risk Analysis and a Fellow of the Air & Waste Management Association. Recent awards include a 2008 NCSU Alumni Association Outstanding Research Award, 2008 Mobile Clean Air and Renewable Energy Award, and the 2009 Earthwise Faculty Award.

Dr. Frey has a B.S. Mechanical Engineering from the University of Virginia, and from Carnegie Mellon University he has a Master of Engineering in Mechanical Engineering and PhD in Engineering and Public Policy

Recent Research Projects for Frey

• Evaluation of Energy Use and Emissions of Rebuilt Passenger Railroad Locomotives — 10/16/11 - 10/15/12 Details
• Comparison of Heavy Duty Diesel Vehicle Energy Use and Emissions for a Fuel Additive — 01/01/11 - 09/30/11 Details
• Microbial Risk Assessment of Graywater Reuse using Quantitative Molecular Approaches — 03/01/11 - 02/29/12 Details
• Locomotive Biofuel Study — 01/03/11 - 03/31/13 Details
• Dynamometer Testing of Railroad Locomotive Engines 2010-33 — 01/20/10 - 03/31/12 Details
• Measurement and Evaluation of Alternative Fuels and Technologies for a Passenger Rail Diesel Locomotive Prime Mover Engine — 05/22/09 - 08/15/09 Details
• Framework for Mobile Source Emission Inventories — 05/16/10 - 05/15/13 Details
• Comparison of Heavy Duty Diesel Vehicle Energy Use and Emissions For a Nanotechnology Fuel Additive — 05/16/09 - 08/15/09 Details
• Measurement and Evaluation of Fuels and Technologies for Passenger Rail Service in North Carolina — 08/16/09 - 08/15/11 Details
• Multiple Tiered Methodology For Micro- to Macro-Scale Assessment of Plug-In Hybrid Electric Vehicles (M4-PHEVs) — 10/01/09 - 09/30/12 Details
• Development and Evaluation of Methodological Framework for Real-World Vehicle Energy Use and Emissions Estimation at Multiple Temporal and Vehicular Scales — 05/15/08 - 04/30/12 Details
• Spatial-temporal Modeling and Analysis of Health Effects Associated with Source Contributions and Speciation of Fine Particulate Matter — 05/15/08 - 11/30/12 Details
• A Spatial-Temporal Modeling Approach For Environmental Epidemiological Data — 12/15/07 - 11/30/11 Details
• Master Agreement - Scientific, Technical, Research, Engineering, and Modeling Support (STREAMS) — 09/27/05 - 09/26/10 Details
• Life Cycle Inventory and Impact Analysis Framework for Nonroad Construction Vehicles and Equipment Based Upon In-use — 09/15/03 - 08/31/08 Details
• In-Vehicle Energy and Emissions Information System — 01/01/03 - 12/31/08 Details

IN CCEE, Dr. Frey is affiliated with

Water Resources, Coastal & Environmental Engineering

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Upcoming Courses
Taught By Frey

• CE 476 - 001 — Fall '12 Air Pollution Control
• CE 576 - 001 — Fall '12 Engineering Principles Of Air Pollution Control