Bob Kavlock Dr. Robert Kavlock has played an integral role in the U.S. Environmental Protection Agency’s computational toxicology program, highlighting new innovations in and creating a better understanding of molecular biology and computer science. Today, Dr. Kavlock sits as the Head of the National Center for Toxicology, which was established in 2005. Dr. Kavlock works on a program called ToxCast, which aims to forecast toxicity of some 9,900 chemicals we use all around the world on a daily basis. The harsh reality: So much is still unknown about how chemicals interact with our environment and personal well being. Dr. Robert Kavlock appeared on the Green is Good radio program on October 8, 2011.