Air pollution and wildfires and brush burning research documents the increasingly severe air quality impacts of both natural fires and controlled burning activities. Studies reveal that wildfire smoke can travel thousands of kilometres, affecting air quality far from fire sources and creating regional health emergencies during major fire seasons. The evidence shows particular health risks for vulnerable populations including children, elderly people, and those with existing respiratory conditions. Explore the research documenting wildfire air pollution impacts and what strategies can protect public health during fire events.