Dr Gev Eduljee is a non-executive director at resource management consultancy Resource Futures. Previously he was Director of External Affairs at SUEZ recycling & recovery UK. He worked in hazardous waste treatment before spending 15 years in environmental consulting. He has published widely on waste management, risk assessment and public health issues. He was a member of Defra’s Advisory Committee on Packaging and of the Advisory Committee on Hazardous Substances. Professor Roy Harrison OBE is listed by ISI Thomson Scientific (on ISI Web of Knowledge) as a Highly Cited Researcher in the Environmental Science/Ecology category. He has an h-index of 84 (i.e. 84 of his papers have received 84 or more citations in the literature). In 2004 he was appointed OBE for services to environmental science in the New Year Honours List and in 2017 was elected a Fellow of the Royal Society. He was profiled by the Journal of Environmental Monitoring (Vol 5, pp 39N-41N, 2003). Professor Harrison’s research interests lie in the field of environment and human health. His main specialism is in air pollution, from emissions through atmospheric chemical and physical transformations to exposure and effects on human health. Much of this work is designed to inform the development of policy.