The dirty air is back in Chicago — at least for Monday

The air quality was expected to improve by Tuesday.

SHARE The dirty air is back in Chicago — at least for Monday

The air is the city Monday morning was listed as “unhealthy for sensitive groups.”

Claire Savage/Associated Press

Chicago is back in the world’s top 10 major cities for poor air quality — No. 7, as of Monday.

The world Air Quality Index lists the city’s air as “unhealthy for sensitive groups.”

The U.S. Air Quality Index has a similar rating for the city, along with the south and west suburbs. The city’s air quality for Tuesday is expected to be “moderate.”


Smoke from Canadian wildfires obscures the downtown skyline as the city recorded “very unhealthy” air quality June 27-28.

Tyler Pasciak LaRiviere/Sun-Time

On Saturday, the Illinois Environmental Protection Agency issued an air quality alert for the entire state through Sunday night as a result of smoke again blowing in from Canadian wildfires.

People who are sensitive to poor air quality or have chronic respiratory issues were urged to limit outdoor activity.

The wildfire smoke brings a toxic brew of microscopic contaminants. It’s known as “particulate matter 2.5,” and it’s different from the high levels of ozone pollution we’re used to breathing.

Wearing N-95 or KN-95 masks can help filter out those pollutants. 

Smoke from the Canadian wildfires made the air quality in Chicago “very unhealthy” June 27-28, and Chicago had the worst air quality among big cities in the world on June 27.

The Latest
Around 20 royal fans and their pet corgis gathered to walk their dogs outside the palace in central London to remember Queen Elizabeth II a year after her death.
Ma Operio, 61, was found unresponsive with a zip tie around her neck Wednesday in the 4400 block of Natchez Avenue. She died Sunday evening. A suspect is in custody.
‘Every step of the way I was almost like, “This isn’t actually going to happen,” ’ Austin Paramore said of his journey to get his graphic novel published.
About 7:05 p.m. Sunday, the boy was near the sidewalk in the 6000 block of South Elisabeth Street when he was shot in the head, police said. He’s in critical condition.
The Cubs beat the Reds 15-7 on Sunday to spit four games in Cincinnati.