Ms. Melanie D. Nembhard is a board certified industrial hygienist with six years of professional experience in industrial hygiene, exposure assessment and human health risk assessment. She is currently a Senior Health Scientist with Cardno ChemRisk in the San Francisco, CA office. She earned her Master of Science in Public Health (MSPH) in Occupational and Environmental Hygiene from the Johns Hopkins Bloomberg School of Public Health. She also holds two certificates from Johns Hopkins, the Risk Sciences and Public Policy Certificate and the Population and Health Certificate. Ms. Nembhard has been involved in researching and evaluating exposures, as well as assessing risk to workers, consumers, and communities exposed to a variety of chemical hazards, physical hazards, and biological hazards, such as asbestos, benzene, butadiene, diacetyl, silica, welding, perchloroethylene (PCE), polychlorinated biphenyls (PCBs), various inhalation irritants, dermal irritants, noise, heat stress, and mold. Additionally, she has participated in baseline exposure assessments and turnaround exposure assessments at multiple oil refineries regarding occupational and environmental exposures to various chemical and physical agents, including particulates, nickel carbonyl, welding fume, volatile organic compounds, and noise.


  • MSPH, Occupational and Environmental Hygiene, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, 2014
  • BS, Biology, Comparative Literature minor, University of Georgia, Athens, GA, 2012

Professional Associations

  • American Industrial Hygiene Association (AIHA)


  • Certified Industrial Hygienist (CIH), Comprehensive Practice (CP# 11542), American Board of Industrial Hygiene (ABIH), 2018