Chicago remains under an Air Quality Alert Friday due to lingering Canadian wildfire smoke, though less dense than Thursday. The EPA alert covers most of the Chicago area and Northwest Indiana. While health officials advise limiting outdoor time, especially for those with respiratory issues, large crowds attended Lollapalooza. Doctors recommend listening to your body and seeking medical attention if experiencing shortness of breath. N95 masks and clean air filters are also suggested.

Prepared by Olivia Bennett and reviewed by editorial team.