U.S. Cities Face Severe Air Quality Issues Due to Canadian Wildfire Smoke
A significant number of U.S. cities, including Chicago, Detroit, Milwaukee, Pittsburgh, and Washington, are experiencing severe air quality issues due to smoke from Canadian wildfires. The smoke has resulted in air quality index (AQI) ratings exceeding 200, which is considered very unhealthy. In some areas of Michigan, Ohio, and Wisconsin, AQI levels have reached the 300s, prompting public health officials to issue air quality advisories and suspend certain government operations. New York has initiated emergency operations, distributing free KN95 masks and opening shelter spaces. Philadelphia has suspended trash pickup and closed public pools due to the deteriorating air quality. The smoke, originating from over 800 active wildfires in Canada, is being carried south by wind patterns, affecting more than 100 million people across 18 states and the District of Columbia. 
