Air quality map: Detroit, Chicago among Midwest cities impacted by Canadian wildfire smoke
Poor air quality is expected to continue Wednesday in parts of the Midwest, Great Lakes and Upper Mississippi Valley thanks to the Canadian wildfires, according to the National Weather Service.
As of Wednesday morning, Detroit and Chicago held two of the top three rankings for worst air quality in the world, according to IQ Air's Air Quality Index. The two cities alternated between the "unhealthy" and "very unhealthy" categories through Tuesday.
As of 6 a.m. CT, Detroit was in the "hazardous" category while Chicago was in the "very unhealthy" category, according to tracker AirNow.gov. Detroit is under the NWS' air quality advisory until Wednesday night.
Air quality index basics: How it works, what each color code means and how to stay safe
Unhealthy levels of pollutants from the smoke spread across parts of the Great Lakes Region surrounding Chicago Tuesday, including most of Wisconsin and parts of Michigan, Illinois, Indiana, and Ohio, according to AirNow.gov.
Meanwhile, more smoky air is headed back New Yorkers' way. Gov. Kathy Hochul warned air quality is expected to reach unhealthy levels in parts of western and central New York and eastern Lake Ontario on Wednesday and Thursday.
Chicago air quality map
Detroit air quality map
Milwaukee air quality map
Cleveland, Akron air quality map
Columbus air quality map
Cincinnati air quality map
Indianapolis air quality map
Louisville air quality map
Pittsburgh air quality map
Buffalo air quality map
US wildfire, smoke map
Contributing: Jeanine Santucci and Thao Nguyen, USA TODAY
This article originally appeared on USA TODAY: Air quality index today: Maps of Chicago, Detroit, Cleveland
