Alex LeBeau, PhD, MPH, CIH Expert Witness

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Specialties & Experience of this Expert Witness

General Specialties:

Industrial Hygiene and Toxicology

Keywords/Search Terms:

Indoor Air Quality, Exposure risk, Risk Assessment, Legionella, Legionnaires disease, PFAS, Environmental Science, Building science, Mold, Bacteria, Dose Assessment, Heavy Metal, Risk, Pesticide, PCB, Food, Waterborne Pathogens, Product Safety, OSHA, Antimicrobial


PhD, University of South Florida; MPH, University of South Florida; BS, University of Florida

Years in Practice:


Number of Times Deposed/Testified in Last 4 Yrs:


Additional Information

Problem solving Certified Industrial Hygienist (CIH) with over 16 years of experience evaluating environmental and occupational exposures to chemicals and biological agents (e.g., bacteria) from the industrial hygiene and toxicology perspective. History of performing human health risk assessments at contaminated sites using U.S. EPA and state regulatory guidelines and monitoring remediation activities at those sites enabling me to analyze risk and determine if any workers or residents would be impacted by residual contamination and/or remediation activities. I perform indoor environmental quality assessments to evaluate exposure impacts on building occupants - including Legionella and water quality assessments - at healthcare, residential, commercial, and industrial facilities as part of the comprehensive overall building science aspect of indoor environmental quality. Experience co-authoring industry guidance on COVID-19 and presented on COVID-19 at a number of conferences as an indoor environmental quality subject matter expert. I have been retained as an expert witness (both plaintiff and defense) and have provided consultation on several occupational and environmental exposure claims where I have evaluated exposures, reconstructed and quantified dose following exposure assessment, and evaluated the toxicological and epidemiological literature to establish a general understanding of cause-where applicable. Experience performing product safety assessments on consumer products and authoring safety dossiers, including antimicrobial pesticide registration dossiers, Generally Recognized as Safe (GRAS) determinations for food ingredients following U.S. FDA regulations for scientific procedures, and submitted a health claim petition to the FDA that was successfully accepted by the agency. Active in the American Industrial Hygiene Association (AIHA) and American Conference of Governmental Industrial Hygienists (ACGIH).