Professor Mireille Toledano is an Investigator of the MRC-PHE Centre for Environment & Health. She has a wealth of expertise in environmental exposure assessment and epidemiology, specifically, in radio frequency-electromagnetic field epidemiology. Her work includes national studies of childhood cancers in proximity to mobile phone base stations and adult cancers near overhead power lines. She has led, together with Professor Paul Elliott, the COSMOS study, the UK-arm of the international cohort study on mobile phone use and health. Her experience with other non-radio frequency large scale epidemiological cohort studies includes co-leading the Environment theme for the new LIFE birth cohort study.