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Detroit ranked as having the worst air quality in the world -- see interactive map

Metro Detroit covered with smoke from Canadian wildfires

A screenshot of AirNow's interactive air quality map taken on July 16, 2026. (AirNow.gov)

DETROIT – Detroit has been ranked as having the worst air quality in the world on Thursday after Canadian wildfire smoke blanketed Michigan.

Here’s the list of the top five cities with the worst air quality, as of 11 a.m. on July 16, according to IQAir:

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  1. Detroit, USA
  2. Toronto, Canada
  3. Minneapolis, USA
  4. Chicago, USA
  5. Kinshasa, Democratic Republic of the Congo

Smoke forecast --> 4Warn Weather Alert extended as Detroit experiences some of the world’s worst air quality

Here’s the AQI+ US legend:

AQI+ USRanking
0-50Good
51-100Moderate
101-150Unhealthy for sensitive groups
151-200Unhealthy
201-300Very unhealthy
301+Hazardous

According to IQAir, as of 11:30 a.m. on July 16, Detroit ranks at 724.

AirNow also ranks the Metro Detroit area as having hazardous air quality.

Click here to see an interactive map of the state’s air quality by AirNow.