Mark Nieuwenhuijsen is a Research Professor at the Barcelona Institute of Global Health and a Professorial Fellow at the Australian Catholic University. He is a world-leading expert in environmental exposure assessment, epidemiology, and health risk/impact assessment with a strong focus and interest in urban and transport planning and health. He has edited three books on exposure assessment and environmental epidemiology and one on urban and transport planning and health, and co-authored more than 350 papers.