Dr. Taehyun Roh has a broad background in environmental health, with specific training and expertise in toxicology and epidemiology. His current research focus is epidemiological studies of the chronic health effects of drinking water contaminants including arsenic. His earlier research topics include mechanistic toxicological studies across in vitro/in vivo experiments, and exposure and risk assessment of environmental contaminants. He is a Registered Pharmacist in Korea.