Wildfire Smoke from Canada Affects Air Quality Across 20 U.S. States
Wildfires in Canada, particularly in Quebec, are causing significant air quality issues across the United States. As of Thursday, air quality alerts have been issued in 20 states, stretching from Missouri to Massachusetts. The smoke has resulted in New York City experiencing the worst air quality of any major city globally on Wednesday. Other cities such as Washington, D.C., Philadelphia, and Columbus, Ohio, have also reported poor air quality. The wildfires, fueled by dry and warm conditions, have overwhelmed firefighting resources in Quebec. The smoke is expected to continue affecting the U.S. as it moves southward, impacting air quality in several major urban areas. 
