Canadian Wildfires Bring Worst Air Quality to Philadelphia Since 1999

Philadelphia is experiencing its worst air quality in at least 24 years due to the noxious haze from the Canadian wildfires blanketing the East Coast this week, causing “hazardous” air quality that city officials say should keep residents indoors until conditions improve. The air quality index in Philadelphia is showing as maroon, the worst level kept by AirNow.gov. Public officials recommend that any area with a “hazardous” level of air quality means that “everyone should stay indoors and reduce activity levels.”