Dennis Michael O'Brien Sr., PhD, PE, CIH

Dennis M. O'Brien, Ph.D., P.E., C.I.H. teaches principles of industrial ventilation, occupational safety, air sampling and analysis, and radiation safety.  He is a graduate of Xavier University and the University of Cincinnati.  He is a former director of physical sciences and engineering at the National Institute for Occupational Safety and Health, and worked for both the UAW and Ford Motor.

B.S. (physics), M.S.(physics), M.S. (environmental engineering), Ph.D. (industrial hygiene)

American Academy of Industrial Hygiene
American Industrial Hygiene Association
American Society of Heating, Refrigeration, and Air Conditioning Engineers
Michigan Industrial Hygiene Society
ANSI Z9 Committee (Industrial Ventilation)

DM O’Brien:  Aerosol Mapping of a Facility with Multiple Cases of Hypersensitivity Pneumonitis: Demonstration of Mist Reduction and a Possible Dose/Response Relationship.   Appl. Occup Environ. Hyg., 18:947-952, 2003.

CF Estill, DS Watkins, RM Hall, DM O'Brien, and SA Shulman: The Impact of
Maintenance and Design for Ventilation Systems. Appl. Occup Environ. Hyg. 17(5):1-8, 2002.

GM Piacitelli, WK Sieber, DM O’Brien, RT Hughes, RA Glaser, and JD Catalano:  Metalworking Fluid Exposures in Small Machine Shops: An Overview.   Amer. Ind. Hyg. Assoc. J.  62:356-370, 2001.