The Washington PostThe Washington Post

Wildfire smoke puts Chicago among cities with worst air quality in the world

By Ian Livingston

28 Jun 2023 · 4 min read

informed Summary

  1. The U.S. is experiencing a new round of dense smoke due to wildfires in Canada. Over 3.7 million acres have been scorched in the past week in Quebec and Ontario alone.

A new round of dense smoke has invaded the United States, specifically the Great Lakes region, as wildfires munch through forests across Quebec and Ontario, with more than 3.7 million acres scorched over the last week in those provinces alone. Throughout Tuesday, Chicago air quality ranked as the worst in the world among major cities.

Minneapolis and Detroit joined Chicago among the 10 worst, all dealing with conditions no better than Code Red. Air quality was even worse in other locations, such as Waukesha, Wis., west of Milwaukee, where the more severe Code Maroon was reached. Grand Rapids, Mich. - which through Tuesday has been between Red and Maroon, at Code Purple - is among places from eastern Iowa through Michigan and into Ontario that have endured air in this bout that is very unhealthy or worse.

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