Wildfire Smoke Prompts Widespread Hazardous Air Quality Alerts Across North America

Extensive hazardous air quality alerts have been issued across the Great Lakes, Midwest, Northeast U.S., and Ontario, Canada, due to persistent wildfire smoke. Michigan has elevated its alert to 'Hazardous,' while Pennsylvania and Philadelphia are under 'Code Red' advisories. Residents, especially sensitive groups, are urged to limit outdoor activities and take measures to improve indoor air quality, with smoke expected to linger for several days.