Dr. Stewart is a Principal Scientist and Director of the Building Science & Forensics division with EH&E. Dr. Stewart received his Ph.D. in Environmental Health/Toxicology (minor in Epidemiology) from the University of Massachusetts at Amherst in 1992. He also holds a Master's degree in Chemistry and a Bachelor's degree in Public Health. Dr. Stewart concentrates his practice on exposure reconstruction and modeling, occupational and environmental exposure assessments, industrial hygiene, and standard of care issues. Dr. Stewart is certified in Comprehensive Practice of Industrial Hygiene (by ABIH) and is also a Certified Safety Professional (by BCSP). Dr Stewart has over 30 years experience as an active member of the environmental health and safety profession. He is the author of numerous professional articles in the area of industrial hygiene, safety, risk assessment of carcinogens, mathematical modeling and management of environmental health and safety programs.
Dr. Stewart worked in the federal government as an OSHA Compliance Officer; in industry as plant, division and Corporate manager involving EH&S; and in academia as the Director of EH&S for Harvard University and also as a teacher/researcher at the Harvard School of Public Health (HSPH) where he currently holds an appointment as Instructor on Industrial Hygiene. At HSPH he teaches graduate courses in industrial hygiene and EH&S Management. He also lectures on topics such as respiratory protection, mathematical modeling of exposures and semiconductor health and safety. In addition to his duties at HSPH, Dr. Stewart holds an appointment at Brandeis University as an Instructor in Environmental Health where he teaches undergraduates the “science” of environmental health. He has also been an invited lecturer/speaker at the University of Massachusetts, School of Public Health and the Massachusetts Institute of Technology.
Dr. Stewart has served on two National Academy of Science Committees as an environmental health and safety expert. The first, was the National Academy of Sciences' National Research Council Committee on "Prudent Practices in the Chemical Laboratory" (Regulatory Affairs Committee). The second was the National Academy of Sciences' National Research Council Committee on "Health and Safety of Research Animal Care Workers."