CHICAGO — Wildfire smoke traveling down from Canada made Chicago experience the worst air quality of any big city in the world Tuesday.
On Wednesday, the “very unhealthy” air quality stuck around, according to AirNow, the official U.S. Air Quality Index, but things are expected to improve by Thursday.
Vulnerable people should stay inside, shut windows and run air purifiers or central air with strong filters, if possible. Consider wearing an N95 or KN95 mask if you go outside. See more tips to protect yourself here.
Here are photos of hazy scenes across the city from staff photographer Colin Boyle and sent in from Block Club readers.
Millennium Park
DuSable Lake Shore Drive
Kennedy Expressway
Downtown
Looking north from the South Loop at 8 p.m. Tuesday:
Grant Park
The skyline from the Adler Planetarium:
Hazy skies from a skyscraper Downtown:
Lincoln Park
Soldier Field:
A hazy view of Wrigley Field in Lakeview:
The eastbound Ohio Street ramp, with the Sears Tower almost entirely obscured:
The lakefront:
North Center:
The Green Line at Ridgeland in Oak Park looking east:
A hazy scene in Hyde Park:
Downtown
Downtown:
Pilsen:
Museum Campus
Jefferson Park:
Medical District:
Union Stockyards
Evanston
The Loop
Another hazy scene:
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