Barbara Turpin, PhD, is a professor with over 25 years of experience in aerosol science, atmospheric chemistry and environmental engineering. She combines laboratory experiments, chemical modeling and field research to improve the understanding of linkages between air pollution emissions and human exposures. Dr. Turpin’s research is designed to reveal fundamental processes needed to accurately predict human exposures and the effects of airborne particles from precursor emissions. She is best known for her work on the formation of organic particulate matter through aqueous chemistry (e.g., in clouds), organic sampling artifacts and modification of the ambient air pollution mix with outdoor-to-indoor transport. She works to facilitate communication between atmospheric, exposure and health scientists with the ultimate goal of effective public health protection.