Alastair Lewis is Professor of Atmospheric chemistry at the University of York and a Science Director at the National Centre for Atmospheric Science. He is currently Chair of the Defra Air Quality Expert Group (AQEG) and the Science Advisory Council of the Department for Transport.
Professor Lewis is an experimental scientist who studies the chemical composition of the atmosphere and the impacts of pollution: from polar regions to megacities, open oceans to tropical forests. He recently led a major bilateral UK–China research collaboration on reducing air pollution in Beijing, and helped establish a network of observational supersites for air quality within the UK. His research spans the development of new instruments for air pollution measurement, field measurements and the evaluation of the effects of emission control policies on air quality.
His awards include the Royal Society of Chemistry John Jeyes Award for Environment, Energy and Sustainability and its Silver Medal for Analytical Science. He has received a Philip Leverhulme Award and the Desty Memorial Prize in separation science. He has authored more than 300 peer-reviewed articles on air pollution and related science and has been a member of science advisory boards of the World Meteorological Organisation and UN Environment Programme.