Unhealthy Air Quality Alerts Sweep Across Northeastern US and Midwest

The states of Pennsylvania, New Jersey, and Delaware are under air quality alerts due to smoke from Canadian wildfires. Pennsylvania and Delaware are experiencing a Code Red for air quality, while New Jersey is under a Code Orange. The smoke is expected to dissipate in the evening, but visibility is limited in some areas. Officials recommend checking Airnow.gov for the latest air quality reports. Sensitive groups are advised to avoid outdoor activities, and wearing masks and using air purifiers are recommended. The Canadian wildfires have caused the worst wildfire season in nearly 30 years, with over 250 "out of control" blazes burning across the country.