Road Dust Rivals Exhaust as Auckland's Hidden Air Pollution Threat

For thirteen years, researchers in Auckland watched the air above three city sites and found that the simple act of driving — wheels turning on pavement, mass pressing down and lifting away — was stirring something more dangerous than exhaust. Road dust, long treated as a background nuisance, has emerged as a primary driver of the fine particulate pollution that settles in lungs and strains hearts across the city. The finding arrives at a delicate moment: as Auckland and the world invest in heavier electric vehicles to clean the air, the very weight of that solution may deepen the problem it w