AIR IMPROVEMENT RESOURCE - Key Persons

Dennis F. Kahlbaum

Job Titles:
  • Meteorologist / Programmer / Senior Analyst

Dr. George T. Wolff

Job Titles:
  • Principal Scientist
  • Expert
Dr. George Wolff is an internationally known expert on air quality and the relationships between meteorology and air quality. He has published over 100 peer-reviewed papers and edited two books on atmospheric chemistry, aerosol chemistry, long-range transport, visibility, acid deposition, and climate change. His experience includes: four years with an air pollution regulatory agency, 15 years as an atmospheric science researcher and 16 years in environmental public policy. Dr. Wolff has served as a scientific advisor to numerous organizations including U.S. EPA (former Chair of the Clean Air Scientific Advisory Committee (CASAC)), the Health Effects Institute (HEI), Michigan Department of Environmental Quality (MDEQ), the Southeast Michigan Council of Governments (SEMCOG), the Lake Michigan Air Directors Consortium (LADCO), the Alliance of Automobile Manufacturers, the Engine Manufacturers Association (EMA), and the California Air Resources Board (CARB). Professional Experience 2008-Present -- Principal Scientist, Air Improvement Resource, Inc. 2003-2008 -- Technical Fellow, Principal Scientist, General Motors Public Policy Center 1998-2000 -- Adjunct Professor, Department of Civil and Environmental Engineering, Michigan State University 1996-2003 -- Principal Scientist, General Motors Public Policy Center 1992-1996 -- Chairman, U.S. EPA Clean Air Scientific Advisory Committee (CASAC) 1992-1996 -- Executive Committee, U.S. EPA Science Advisory Board 1992-1996 -- Principal Scientist, General Motors Environmental and Energy Staff 1992-2003 -- Michigan Environmental Science Board 1991-1995 -- Adjunct Professor, Department of Environmental Science, School of Public Health, University of Michigan 1990-1992 -- Principal Research Scientist and Manager, Air Quality and Global Warming Programs, General Motors Research Laboratories 1987-1997 -- U.S. EPA Clean Air Scientific Advisory Committee (CASAC) 1987-1990 -- Principal Research Scientist and Manager, Atmospheric Modeling and Assessment and Climate Change Programs, General Motors Research Laboratories 1985-2006 -- U.S. EPA Science Advisory Board 1984-1988 -- Adjunct Professor, Department of Atmospheric and Oceanic Sciences, University of Michigan 1981-1987 -- Senior Staff Research Scientist and Group Leader, Atmospheric Sampling and Analysis Group, Environmental Science Department, General Motors Research Laboratories 1978-1981 -- Group Leader and Senior Research Scientist, Atmospheric Sampling and Analysis Group, Environmental Science Department, General Motors Research Laboratories 1977-1978 -- Senior Research Scientist, Environmental Science Department, General Motors Research Laboratories 1975-1977 -- Associate Engineer and Director of Air Pollution Program, Interstate Sanitation Commission, New York, NY 1973-1975 -- Senior Air Pollution Engineer, Interstate Sanitation Commission, New York, NY

Thomas L. Darlington - President

Job Titles:
  • President
Mr. Thomas Darlington is President of Air Improvement Resource, a company formed in 1994 specializing in mobile source emission modeling. He is an internationally recognized expert in mobile source emissions modeling. He has evaluated the emission benefits and cost effectiveness of nearly every major on-road and off-road regulation proposed and adopted since 1988 in the U.S. and Canada. He has also reviewed and commented on the all of the emission models developed by the EPA and the California Air Resources Board in the 1990s. He has been called upon to testify on such regulations at EPA workshops and hearings, and at ARB workshops and Board Hearings in Sacramento. He also provided expert advice to the National Academy of Sciences during their review of EPA's MOBILE model. Mr. Darlington currently serves on EPA's Modeling Working Group reporting to the Mobile Source Technical Review Subcommittee FACA at the request of both the Alliance of Automobile Manufacturers and the Engine Manufacturers Association. The MWG is a stakeholder group of industry, transportation, and government (state and federal) officials that provide feedback to EPA on a broad range of modeling policy issues Professional Experience 1994-Present -- President, Air Improvement Resource, Inc. 1993-1994 -- Director, Mobile Source Programs, Systems Application International 1989-1994 -- Senior Engineer, General Motors Corporation, Environmental Activities 1988-1989 -- Senior Project Engineer, Detroit Diesel Corporation 1979-1988 -- Project Manager, U.S. EPA, Ann Arbor, Michigan