Michael Lumpkin, PhD, DABT

Dr. Michael Lumpkin is a board-certified toxicologist with more than 20 years of experience in chemical dose response assessment, exposure assessment, dose reconstruction, chemical emergency response, risk communication, and infectious disease risk mitigation. He has led teams of environmental scientists responding to chemical accidents and industrial emissions sources to determine real-time levels of chemicals in the environment and support incident commanders and other stakeholders in understanding the associated health impacts. He has provided expert risk communication to community groups living in close proximity to petroleum faciliites, nuclear facility workers, and state and city utility and zoning boards. He has coauthored numerous peer- reviewed hazard and risk assessments for USEPA and ATSDR. He has provided critical reviews and analyses of toxicology data for numerous compounds, including PFAS, petrochemicals, formaldehyde, PAHs, perchlorates, pesticides, metals, solvents, and inhaled dust. Michael has developed, critiqued and applied PBPK models for lead, volatile organic compounds (VOCs), pesticides and bioterrorism agents for USEPA, CDC and DOD, for use in regulatory standard support and emergency planning. He has designed and performed occupational exposure reconstructions for VOCs and diisocyanates using laboratory and infield simulations. He has developed novel occupational exposure limits for pharmaceutical and industrial chemicals. Michael has served on ad hoc federal grant review committees and as  a peer reviewer for toxicology journals and has lectured in graduate courses and emergency responder seminars for inhalation toxicology and risk assessment. He is certified as a Diplomate of the American Board of Toxicology. 

Education

• Ph.D., Toxicology, University of Georgia, Athens, Georgia
• B.S., Biochemistry, University of Georgia, Athens, Georgia

Registrations & Certifications

• Diplomate, American Board of Toxicology
• 40 Hour HAZWOPER
• 8 Hour HAZWOPER Supervisor
• TWIC Clearance
• Former Firefighter I (NFPA 1001), National Board on Fire Service Professional Qualifications

Past or Current Professional Affiliations

• Member, Society of Toxicology
• Councilor, Risk Assessment Specialty Section of the Society of Toxicology
• President, Southeastern Regional Chapter of the Society of Toxicology

Publications

• ​Perez, A, Lumpkin M, 2023. Critical endpoints of PFOA and PFOS exposure for regulatory risk assessment in drinking water: Parameter choices impacting estimates of safe exposure levels. Regul Tox Pharm. 138: 105323.
• Predicting lung dosimetry of inhaled particleborne benzo[a]pyrene using physiologically based pharmacokinetic modeling
• DMAA as a Dietary Ingredient
• Pharmacokinetic data distinguish abusive versus dietary supplement uses of 1,3-dimethylamylamine
• Acrolein environmental levels and potential for human exposure
• Acrolein health effects
• PBPK Modeling on the Metabolic Interactions of Carbon Tetrachloride and Tetrachloroethylene
• Plasma Binding of Trichloroacetic Acid in Mice, Rats, and Humans under Cancer Bioassay and Environmental Conditions
• The Pharmacokinetic of Perchlorate and its Effect on the Hypothalamus/Pituitary-Thyroid Axis
• Chlorinated Hydrocarbons. In Hamilton and Hardy’s Industrial Toxicology
• Other Halogenated Hydrocarbons