Khara Grieger

Risk Assessor and Environmental Research Scientist


  • PhD, Environmental Engineering, Technical University of Denmark,
  • MSc, Environmental Engineering, Technical University of Denmark
  • MS, Plant Biology and Ecology, with an additional degree in Ecology, Evolutionary Biology, and Behavior, Michigan State University
  • BS, Zoology, Michigan State University, Graduated with High Honors.

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Khara D. Grieger is a risk assessor/environmental research scientist with the Risk Analysis Program. Her current projects focus on risk assessment and analysis of engineered nanomaterials and the development of decision-support systems under conditions of extensive uncertainty. These projects will help risk assessors and decision makers within a range of sectors better understand the potential risks of these emerging technologies and understand the available tools and methodologies to handle these risks. In addition, she currently manages and is involved in several food safety research projects. Her current research activities focus on the potential risks of engineered nanomaterials in food and aspects of regulation, mandatory labeling, and proper risk assessment approaches for these novel food technologies. Overall, she expects to continue working in the field of risk assessment for emerging technologies and contaminants, focusing on the development of better methodologies and approaches to handle the unknown risks of technological innovations and products.

Dr. Grieger completed her PhD and held a post-doctorate researcher position at the Technical University of Denmark in the field of Environmental Engineering and specializing in risk assessments of engineered nanomaterials. In addition to Dr. Grieger’s education in environmental engineering, she has a background in plant biology and ecology from Michigan State University. In recent years, she has won numerous awards and scholarships for her research on risk assessments of engineered nanomaterials, including those from RTI’s authors awards (2012-2016), RTI’s professional development award (PDA), Duke-RTI Scholars program (2017-2018), Society of Risk Analysis (SRA),  American Geophysics Union (AGU). Dr. Grieger also currently serves as a RTI representative to the International Organization for Standardization (ISO) Technical Committee on nanomaterials and nanotechnologies.