TWA8HR Occupational Hygiene Consulting, LLC provides industrial hygiene consulting expertise primarily in exposure assessments, including for retrospective and prospective epidemiology support. We have collaborated in international studies, and led investigative teams in diverse locales. Our approach is collaborative with a broad range of epidemiologists, occupational physicians, statisticians, computer support, laboratory support, and field investigators.

Tom Armstrong, CIH, PhD. has published articles on exposure assessment for epidemiology, and many related topics, including determining exposure limits for unusual work shifts, and mathematical modeling of exposures. The later has relevance to consumer and general population exposures and health risks. The tools he uses and solutions he has delivered have relevance to the EU Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) programs.

For more information, see Tom’s CV