Mark Miller is a British Heart Foundation-funded Senior Research Scientist working in the Centre for Cardiovascular Science at the University of Edinburgh, United Kingdom. Mark’s research investigates the effects of air pollution on the cardiovascular system. His main focus is the biological pathways by which the particles in vehicle exhaust can cause heart disease. He also has an interest in the potential for manufactured nanoparticles to cause harm to the cardiovascular system. Mark’s research findings have received extensive coverage in the national and international media. He is an Editor of the journals Particle & Fibre Toxicology and Frontiers in Cardiovascular Medicine. Mark is a Member of the World Heart Federation Air Pollution Expert Group and an Expert Member of COMEAP, the UK governmental advisory Committee on the Medical Effects of Air Pollution. His work was recently highlighted as a case study in the 2019 DEFRA Clean Air Strategy.