John WhysnerJohn Whysner, MD, PhD, serves as Vice President of WOHA and is a Board-certified toxicologist. Dr. Whysner is an expert in the areas of toxicology, risk assessment and risk communication for chemicals found in the workplace and the environment. He seves as a consultant to the International Agency for Research on Cancer (IARC) and the U.S. Government. Dr. Whysner was also Associate Clinical Professor of Environmental Sciences at the Mailman School of Public Health, Columbia University, where he taught courses on toxicology. Read More Read Less