The Growing Threat of Wildfire Smoke Pollution in North America

Smoke from Canadian wildfires has caused air quality alerts in the Midwest, with state health departments warning people with heart and lung conditions to reduce outdoor exposure. Climate experts say that as the planet continues to warm, air quality will continue to worsen, as will its impact on human health. Fine particulate matter, also known as PM2.5, is one of the main pollutants released from wildfire smoke, which can cause respiratory issues like coughing, difficulty breathing, and aggravated asthma. Both fine particles from wildfire smoke and ozone can cause respiratory issues and pregnancy complications. People should pay attention to air quality and avoid time outdoors when the air is bad.