John Sumpter

John Philip Sumpter OBE is a distinguished professor of Brunel University, UK. He is an ecotoxicologist, and was amongst the team that first discovered endocrine disruption in fish, and the role of endocrine disrupting chemicals. He also developed the Yeast Estrogen Assay (YES).
In 2009, Sumpter received a Dr.h.c. from ETH Zurich. He was appointed Officer of the Order of the British Empire (OBE) in the 2016 New Year Honours for services to ecotoxicology in the aquatic environment.