David S. Ensor, PhD

Education

B.S. Chemical Engineering, Washington State University, Pullman, WA, 1963
M.S. Chemical Engineering, University of Washington, Seattle, WA, 1968
Ph.D. Engineering, University of Washington, Seattle, WA, 1972

Summary of Work Experience

Dr. Ensor has 25 years experience in the aerosol research field. He has lead and worked on projects for a wide range of clients in air pollution control, instrument and sampler development, indoor air quality, microcontamination, bioaerosols, and aerosol modeling. He holds three patents. He is Chairman of an International Organization of Standards (ISO) Technical Committee 209 Working Group on minienviroments and isolators used for clean manufacturing. Dr. Ensor is Founding Editor of Aerosol Science and Technology and has published extensively with over 150 papers and presentations.

Professional Experience

1984 to 1995. Research Triangle Institute. Director, Center for Environmental Technology. Responsible for the business and technical aspects of a multidisciplinary research program. Research areas include: air pollution control, particle sampling and characterization, indoor air quality, filtration, protective garments, microcontamination control, surface cleaning, and test methods development.

1980 to 1984. Research Triangle Institute. Department Manager, Control Technology. Responsible for programs in electrostatic precipitation, filtration, process costs and plume opacity.

1972 to 1980. Meteorology Research, Inc., Altadena, CA. Manager, Aerosol Sciences Department. Responsible for projects dealing with aerosol and gas instrumentation, control device evaluation, trace element chemistry, and computer modeling and data reduction.

1963 to 1965. DuPont, Wilmington, DE. Chemical Engineer, Engineering Department Field Group. Assigned to Remington Arms for research and development of small arms ammunition.

Professional Activities

Adjunct Professor of Chemical Engineering, North Carolina State University, Raleigh, 1982-89

Founding Editor, 1993- ; Editor-in-Chief, 1982-93, Aerosol Science and Technology.

President, 1996-1998, International Aerosol Research Assembly.

Professional Affiliations

• Air and Waste Management Association
• American Institute of Chemical Engineers
• American Chemical Society
• American Association for Aerosol Research, Past President
• American Society for Testing Materials
• American Society for Heating, Refrigerating, and Air Conditioning Engineers, Inc.,
  • Chairman TC2.4 particles/Particle Removal Systems 1994-1997
  • Member IAQ'96 Organizing Committee
• Gesellschaft fur Aerosolforschung
• Institute for Environmental Sciences, Fellow

Selected Presentations/Publications

Owen, M.K., D.S. Ensor, P.A. Lawless, J.T. Hanley, and L.E. Sparks. Relating Air Cleaner Efficiency to Indoor Air Quality. Presented at IAQ '92: Environments for People (ASHRAE), San Francisco, CA, October 18-21, 1992.

Foarde, K.K., E.C. Cole, D.W. VanOsdell, D.S. Ensor, D.J. Bush, K.E. Leese and D.L. Franke. Characterization of Environmental Chambers for Evaluating Microbial Growth on Building Materials. Presented at IAQ '92: Environments for People (ASHRAE), San Francisco, CA, October 18-21, 1992; and the International Workshop--health Implications of Fungi in Indoor Environments, Baarn, Netherlands, November 9-13, 1992.

Yamamoto, T., D.S. Ensor, and L.E. Sparks. Modeling of Indoor Air Quality for a Personal Computer. Presented at the ASTM Symposium on Modeling Indoor Air Quality Exposure, Pittsburgh, PA, April 25-26, 1992.

Yamamoto, T., R. Periasamy, R.P. Donovan, and D.S. Ensor. Flow Cell for Real Time Observation of Single Particle Detachment. J. Adhesion Sci. and Tech., 8: No. 5, pp 543-552, 1994.

Yamamoto, T., D.S. Ensor, and L.E. Sparks. Evaluation of Ventilation Performance for Indoor Space. Building and Environment, (29):3, pp 291-296, 1994.

Owen, M.K., D.S. Ensor, and L.E. Sparks. Airborne Particle Sizes and Sources Found in Indoor Air. Atmos. Environ., 26A:(12) pp 2149-2162, Aug 1992.

Owen, M.K., D.S. Ensor, L.S. Hovis, W.G. Tucker, and L.E. Sparks. Particle Size Distributions for an Office Aerosol. Aerosol Sci. Tech., 13(4):486-492, Nov 1990.

plus over 100 additional aerosol-related publications & presentations

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