US air quality today: AQI maps show DC, New York among cities impacted by Canadian wildfire smoke

Smoke from the Canadian wildfires is expected to remain in the air through at least the middle of the week, according to the National Weather Service, triggering air quality alerts for portions of the country.

Alerts were in place Tuesday morning for the northern High Plains, Midwest, Great Lakes, southern Mid-Atlantic and into the Northeast, where higher concentrations of smoke will result in unhealthy air quality for sensitive groups, according to the weather service.

As of Tuesday morning, Washington, D.C., and New York City have the worst air quality conditions among American cities, according to IQ Air's live ranking of major world cities, which ranks them 7th and 14th, respectively.

TUESDAY WEATHER FORECAST: Record breaking heat forecast from Four Corners through Mississippi Valley as U.S. swelters

According to the Canadian Interagency Forest Fire Centre, there are currently nearly 600 blazes "out on control" and over 900 active fires.

Health experts advise Americans under air quality advisories to stay indoors with air conditioning or to wear N95 masks outside.

US air quality map

Washington, DC air quality map

New York City air quality map

Chicago air quality map

Detroit air quality map

Charlotte air quality map

Knoxville air quality map

Atlanta air quality map

Birmingham air quality map

Philadelphia air quality map

Boston air quality map

Baltimore air quality map

Burlington, Vermont air quality map

This article originally appeared on USA TODAY: Air quality index map shows DC, New York impacted by Canadian wildfires