Washington, DC

Philip G. Sayre, Ph.D.

  • Scientific Consultant
  • Direct Dial: +1 202.434.4105
  • Fax: +1 202.434.4646
  • Professional Assistants: Cheryl Thornhill and Kevin Rowan, Ph: +1 202.434.4345

    Washington, DC

    1001 G Street NW
    Suite 500 West
    Washington, DC 20001

Philip Sayre, Ph.D., a Scientific Consultant for Keller and Heckman, has over thirty years of experience in the environmental field. He specializes in assessing risks of commercial nanomaterials and microbial biotechnology products under TSCA and has participated as a lead in national and international regulatory test guideline work for nanomaterials. 

Prior to consulting for Keller and Heckman, Dr. Sayre was a Senior Scientist for the U.S. Environmental Protection Agency (EPA). In that capacity, he was involved in the health and ecological assessments of over 160 nanomaterial submissions which were submitted to EPA for commercialization under TSCA. Dr. Sayre also identified hazards associated with many biotechnology submissions under Section 5 of TSCA, and was a lead author of the EPA guidance for biotechnology submitters under TSCA. Other positions held at EPA include the Office of Solid Waste and Emergency Response (OSWER), the Scientific Advisory Board (SAB), and the Office of Research and Development (ORD).Prior to his service at the EPA, Dr. Sayre completed biotechnology and chemical ecotoxicity, exposure, and risk assessments under the National Environmental Policy Act (NEPA) at the Food and Drug Administration (FDA).

Recent publications include:

·         G. Oberdorster, V. Castranova, B. Asgharian, and P. Sayre. 2015. Inhalation Exposure to Carbon Nanotubes (CNT) and Carbon Nanofibers (CNFs): Methodology and Dosimetry. Journal of Toxicology and Environmental Health, Part B, 18:3-4, 121-212, DOI: 10.1080/10937404.2015.1051611.

·         Hilary Godwin, Catherine Nameth, David Avery, Lynn Bergeson, David Bernard, Elizabeth Beryt, William Boyes, Scott Brown, Amy Clippinger, Yoram Cohen, Maria Doa, Christine Olgilvie Hendren, Patricia Holden, Keith Houck Agnes B. Kane, Frederick Klaessig, Toivo Kodas, Robert Landseidel, Iseult Lynch, Timothy Malloy, Mary Beth Miller, Julie Muller, Gunter Oberdorster, Richard C. Pleus, Phil Sayre, Vicki Stone, Kristie M. Sullivan, Jutta Tentschert, Philip Wallis, and Andre E. Nel. 2015. Nanomaterial categorization for assessing risk potential to facilitate regulatory decision-makingACS Nano, 20 March 2015 on line (DOI: 10.1021/acsnano.5b00941).

Dr. Sayre serves as a reviewer for several toxicology and risk assessment journals, and is a current member of both the Society of Toxicology (SOT) and Society of Environmental Toxicology and Chemistry (SETAC).