Donna Vorhees is a senior scientist at HEI where she leads an effort to develop and implement a Strategic Scientific Research Agenda that will guide research to understand and prevent or minimize potential human exposure to and health effects from unconventional oil and gas development. She is Adjunct Assistant Professor at the Boston University School of Public Health where she teaches Risk Assessment Methods and has 25 years of consulting experience, assessing multi-pathway chemical exposures in indoor and outdoor environments, quantifying human health risks, and communicating risks to affected communities in the United States on behalf of government and private clients. Dr. Vorhees has conducted similar assessments in Nigeria and Cote d’Ivoire on behalf of the United Nations Environment Program. She currently serves on the USEPA Board of Scientific Counselors Subcommittee on Chemical Safety for Sustainability, has served on National Research Council committees (Health Risks of Phthalates and Sediment Dredging at Superfund Megasites) and other advisory committees, and has been a peer reviewer on numerous health risk assessments prepared by the USEPA, the Consumer Product Safety Commission, and Health Canada. Dr. Vorhees received her ScM and ScD in Environmental Health from the Harvard School of Public Health.