CTEH is pleased to announce John Lipscomb, PhD, has joined the CTEH team as a Senior Toxicologist. Dr. Lipscomb is a seasoned scientist, having worked in toxicology and risk assessment roles for both the U.S. Air Force and the U.S. Environmental Protection Agency. He has more than 35 years of experience and has nearly 90 peer-reviewed scientific publication credits.

Dr. Lipscomb’s scientific career began in 1984 as a Principal Investigator at the National Center for Toxicological Research in Jefferson, Arkansas. There, he characterized the adult and transplacental pharmacokinetics of trimethyltin, a potent neurotoxicant, fulfilling research requirements for both his Master’s and Doctorate degrees.

In 1991, he began active duty service in the Air Force, where he supported investigations into the pharmacokinetics of mission-critical compounds, like trichloroethylene and halon replacement chemicals. He was awarded the Air Force Achievement medal for pioneering the military’s first large-scale investigation of human metabolic variability.

In 1998, he joined the EPA in Cincinnati, Ohio. There, Dr. Lipscomb quantified the negative health impacts of drinking water disinfection byproducts and the positive health impacts of avoiding microbial disease. He served as the sole toxicologist for his division’s work in chemical mixtures, for which he contributed guidance on chemical mixtures and cumulative risk; he wrote EPA guidance to quantify values for default uncertainty factors and developed emergency exposure guidance values for chemical threat and chemical warfare agents.

During the remainder of his time at the EPA, Dr. Lipscomb authored or co-authored 25 peer-reviewed government technical reports. He holds certification in general toxicology as a Diplomate of the American Board of Toxicology and is recognized as a Fellow of the Academy of Toxicological Sciences. He has served in multiple advisory and journal editorial boards, societies, and associations.

CTEH is proud to add Dr. Lipscomb to our team of experts. For more information on his qualifications, please visit his profile.