Dr. Ben Barratt is a Senior Lecturer at King’s College London. Ben joined King’s College London in 1998. His early research evaluated impact of policy interventions on London’s air quality, including the London Congestion Charging Scheme and Low Emission Zone. The focus of his current work is to better characterise individual and population-level exposure to environmental stress, how this relates to the health of susceptible population subgroups and methods of public health improvement. Much of his research output is in collaboration with international multidisciplinary teams ranging from social science and policy development, through to cohort and population health studies.