She received her Ph.D. in toxicology from Texas A&M University and completed her postdoctoral fellowship at the Johns Hopkins School of Public Health. She has extensive training in animal modeling and community interventions and has published multiple manuscripts related to the measurement of chemical-specific biomarkers of exposure. Dr. Johnson’s current research is focused on early life exposure to air pollution. Her work includes mechanistic work in experimental models and exposure assessment in vulnerable communities along the Texas-Mexico border and Eastern China.