Biography

Ph.D., Mechanical Engineering, California Institute of Technology, December 1990, Thesis Topic: Inorganic Components of Atmospheric Aerosols
M.S., Mechanical Engineering. Massachusetts Institute of Technology, January 1978, Thesis Topic: Electrostatic Charging of Jet Fuel
B.S., Engineering Physics, University of California, Berkeley, June 1976

2005-present: Director, Air Quality Research Center, University of California, Davis
2015-present: Distinguished Professor, Mechanical and Aerospace Engineering, Civil and Environmental Engineering, and Land, Air and Water Resources, University of California, Davis
2009-2016: Director, Crocker Nuclear Laboratory, University of California, Davis
2000-2015: Professor, Mechanical and Aerospace Engineering, Civil and Environmental Engineering, and Land, Air and Water Resources, University of California, Davis
1999-2000: Professor, Department of Mechanical Engineering, University of Delaware
1994-1999: Associate Professor, Department of Mechanical Engineering, University of Delaware
1991-1994: Assistant Professor, Department of Mechanical Engineering, University of Delaware
1984-1990: Research Associate, Department of Physiology and Biophysics, University of Southern California School of Medicine
1983-1984: Engineer, BMDP Statistical Software (Developers of statistical software), Los Angeles, CA
1978-1983: Engineer, Berkeley Solar Group (HVAC energy conservation consultants), Berkeley, CA

Chair, Haagen-Smit Prize Committee, Atmospheric Environment, 2013-2016
Chair, International Advisory Committee, Center for Excellence in Environmental Studies, King Abdulaziz University, Jeddah, Saudi Arabia, 2011-2015
Elected to Fellow status, American Association for Aerosol Research, 2011
Editorial Advisory Board, Aerosol Science and Technology, 2008-2017
Outstanding Mid-career Research Faculty Award, College of Engineering, UC Davis, 2005
President of the American Association for Aerosol Research, 2005-2006
Erdos number of 2, 2005
Appointed to Editorial Board, Atmospheric Environment, 2004
Founder of Newark Charter School, Newark, DE, 2001
Appointed Editor of Aerosol Science and Technology issue on Single Particle Analysis, 2000
Technical Program Chair for the American Association for Aerosol Research Conference, 1999
Advisor to the NRC Committee to Review the Department of Energy’s Office of Fossil Energy’s Research Plan for Fine Particulates, 1998
Plenary Lecturer, American Association for Aerosol Research Conference, 1998
Dean’s Special Merit Award, U.D., 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998
Editor’s Citation for Excellence in Refereeing for JGR-Atmospheres, American Geophysical Union, 1997
Dean’s Teaching Commendation, U.D., 1993, 1996
Kenneth T. Whitby Award, American Association for Aerosol Research, October 1995
Provost’s Special Merit Award, U.D., 1993, 1996, 1999
Rockwell Scholarship, 1989