
Canadian Wildfire Smoke Pushes U.S. Air Quality Into Unhealthy Range
Widespread Canadian wildfire smoke blankets the Midwest and parts of the Northeast, driving the Air Quality Index into the unhealthy range (scores over 100, with some areas in the 300s), triggering advisories and emergency measures for more than 100 million people. Officials urge staying indoors, using air purifiers or recirculated air, and wearing high-quality masks (N95/KN95) outdoors, especially for vulnerable groups such as children, pregnant people, older adults, and those with asthma or heart disease.









