Is the air quality good in Chicago?

Chicago’s air quality is currently unhealthy for sensitive groups due to Canadian wildfire smoke and ozone levels. As of June 23, 2023, the U.S. air quality index for Chicago, Illinois is within the "unhealthy for sensitive groups" level, meaning that people with lung diseases, children, older adults, and outdoor workers should reduce or avoid prolonged or heavy outdoor exertion. Others are also advised to consider reducing their outdoor activities.

Chicago had the second worst air quality in the world among major cities at 9:00 AM.

Why is there an air quality alert in Chicago?

Illinois Environmental Protection Agency has not issued an air quality alert yet.

What is causing poor air quality in Chicago?

Wildfire smoke from Canada and ozone from summer temperatures are causing the poor air quality in Chicago

How can I protect myself from poor air quality?

Related news

View all

Fire burning in a pine forest

Wildfire Map Spotlight: Northern California

Many fires are burning across the wilds of Northern California. Find out more about these fires.

Read more

Red skies over smoky hills

Wildfire Map Spotlight: Madre Fire, California

The Madre Fire is the largest wildfire by acreage of 2025. Find out more about this fast-expanding fire.

Read more

Wildfire smoke on a wooded hill

Wildfire Map Spotlight: Marseille, France Wildfire

A fire near Marseille, France has closed the airport and is forcing residents indoors. Learn more about this fast-moving wildfire.

Read more