Invisible Tire Pollution Chokes Cities

Invisible pollution from microscopic tire fragments is increasingly recognized as a major threat to air quality, particularly in urban environments. While exhaust emissions have seen significant reductions due to regulations, non-exhaust emissions from tire wear and brake abrasion remain largely unregulated globally, despite representing the majority of transport-related particulate matter.

Recent studies from multiple countries highlight the pervasive nature of these tire-related chemicals and particles. Research indicates that these emissions are highest near busy roads and in poorly ventilated urban areas, with tire wear particles accounting for a substantial portion of microplastics detected in city air. These fine particles can penetrate deep into the respiratory system.

Concerns are mounting over the health impacts, with links established to cardiopulmonary issues, lung cancer, and increased asthma incidence. The European Union is set to become the first region to directly address this issue by setting limits on non-exhaust emissions via their Euro 7 standards, effective November 2026. Automotive industries are developing new materials and designs for tires and brakes to meet these upcoming regulations.