Claire Hamaji, MPH is an Associate Health Scientist with more than seven years of experience in the fields of human health risk assessment, exposure assessment, and toxicology. Ms. Hamaji completed her Master of Public Health degree with an emphasis in Environmental Health from the Emory University Rollins School of Public Health in 2019. Her graduate research involved conducting epidemiological investigations into the multigenerational health effects stemming from a widespread flame retardant exposure that occurred in Michigan in the 1970s. As an Associate Health Scientist with Cardno ChemRisk, Ms. Hamaji collaborates with ChemRisk’s industrial hygienists and toxicologists to investigate a wide variety of unique chemical exposures. Specifically, Ms. Hamaji both manages and provides support on toxic tort cases as well as internal and client-driven research. Additionally, Ms. Hamaji assists in appraising the USEPA’s risk evaluations for high-priority chemicals under the Toxic Substances Control Act (TSCA). Her past project work has included risk assessments and toxicological investigations into brominated flame retardants, polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFAS), perchloroethylene (PCE), lead, wildfire smoke, asphalt fumes, glycol ethers, quaternary ammonium compounds, and asbestos.


  • MPH, Environmental Health, Emory University Rollins School of Public Health, 2019
  • BA, Public Health, University of California, Berkeley, 2013

Professional Associations

  • Genetic and Environmental Toxicology Association of Northern California


  • Adult CPR/ First Aid/ AED, American Red Cross
  • 40-Hour HAZWOPER, Occupational Safety and Health Administration

Most Recent Awards/Professional Honors

  • 2019 Rollins School of Public Health Outstanding Practicum Award Winner
  • 2018 Georgia Environmental Conference Student Scholarship Poster Competition Winner
  • HERCULES Exposome Center-funded student, 2017 – 2018
  • Rollins School of Public Health James W. Curran Scholarship Recipient, 2017
  • High Distinction in General Scholarship, University of California, Berkeley, 2013