Dr. Dydek specializes in toxicology and environmental science and engineering as it pertains to the assessment of potential adverse human health effects. With more than 30 years of experience, he is an expert in the evaluation of human exposure to microbial agents and toxic chemicals and gases. His work includes health risk analyses, exposure assessments, setting risk-based cleanup guidelines, toxicology reviews, and consumer product safety evaluations. Dr. Dydek is a Board-certified toxicologist and licensed professional engineer. He has authored more than a dozen technical articles and serves as a technical advisor for the TV shows “CSI: Las Vegas” and “Bones.” He has served as an expert witness in more than 250 cases, including administrative hearings before environmental agencies, toxic tort cases, criminal proceedings, and Worker’s Compensation matters.


  • Board Certified Toxicologist as a Diplomate of the American Board of Toxicology (DABT)
  • Professional Engineer (PE), Licensed in Texas
  • Post-doctoral Research Fellowship in Toxicology, University of Texas School of Pharmacy, concentration: effects of drugs and environmental contaminants on the respiratory systems of experimental animals
  • PhD, Environmental Science and Engineering, University of North Carolina School of Public Health, concentration: toxicology, epidemiology and biostatistics, air pollution engineering 
and chemistry, aerosol science, biochemistry and industrial hygiene
  • MS, Environmental Science and Engineering, Rice University, concentration: water and wastewater engineering and biology
  • BA, Mechanical Engineering, Rice University, concentration: engineering, chemistry, physics and mathematics


  • Special Achievement Award, U.S. Fish and Wildlife Service
  • Special Achievement Award, U.S. Environmental Protection Agency
  • City of Austin Certificate of Appreciation for work on Solid Waste Management Task Force
  • Austin City Council Award for work on Clean Air Committee
  • Outstanding Employee Award, Texas Air Control Board
    Society of Toxicology
  • American College of Toxicology
  • Roundtable of Toxicology Consultants
  • American Conference of Governmental Industrial Hygienists
  • Air and Waste Management Association
  • Austin Steering Committee, Environmental Compliance, Mass Transit Authority, Former Member
  • State of Texas Environmental Priorities Project, Human Health Workgroup, Former Member
  • Peer-reviewer for U.S. Environmental Protection Agency and Texas Commission on Environmental Quality Health Risk Studies

* Partial bio; contact Humatec for comprehensive CV