Academic Credentials
  • Ph.D., Environmental and Occupational Hygiene, University of Washington, 2019
  • M.S., Environmental Heath, University of Washington, 2016
  • B.S., Biology, Seattle University, 2007
Licenses & Certifications
  • 40-Hour Hazardous Waste Operation and Emergency Response Certification (HAZWOPER)
  • 8-Hour HAZWOPER Managers and Supervisor Training
  • Toxicology Aspects Certification
Academic Appointments
  • University of Washington, Department of Environmental and Occupational Health Sciences, Lecturer
Professional Affiliations
  • Air & Waste Management Association
  • American Academy of Environmental Engineers and Scientists
  • American Bar Association (associate member)
  • American Society of Civil Engineers (affiliate member, Environmental Health and Water Quality Committee member)
  • National Association of Environmental Professionals

At Exponent, Dr. Duncan specializes in environmental compliance and cost allocation and assessment. She has over a decade of experience in environmental health and safety, exposure assessment, chemical fate and transport, and solid waste and wastewater permitting. 

Dr. Duncan has evaluated remediation and compliance efforts under federal (e.g., CERCLA, RCRA, CWA, SDWA) and state regulatory programs for sites with soil, sediment, groundwater, and surface water contamination. Projects have included organic contaminants (e.g., polychlorinated biphenyls [PCBs], dioxins/furans, polycyclic aromatic hydrocarbons [PAHs], DDx, per- and polyfluoroalkyl substances [PFAS]) and inorganic contaminants (e.g., boron, cadmium, cobalt, lead, lithium, zinc).

Dr. Duncan has conducted gap assessments for international environmental regulations and standards. This work resulted in proposing new regulatory frameworks and designing/conducting training modules for government agency personnel. She has evaluated international environmental regulations and standards for countries on six continents.

Dr. Duncan has conducted over one hundred assessments to evaluate exposure to asbestos, assessed hazards for dozens of chemicals in personal care products, and refined methods utilizing laser ablation in biomonitoring of metal isotopes in humans. She has also supported clients in evaluating hazardous and non-hazardous waste management practices, complex multi-party site assessments, modifications to general National Pollutant Discharge Elimination System (NPDES) permits, environmental stewardship, and standard of care activities.