An Air Quality Alert remains in effect for the Chicago area Monday, with potential for severe weather in the evening.
ABC7 Chicago's Air Quality Tracker provides real-time updates on the latest air quality data available from government monitors across the city and the region.
The Chicago area is in for another day of heat, humidity and poor air quality Wednesday.
Tuesday is Chicago's hottest day of the year so far.
Kilauea, a volcano in Hawaii, began erupting on Tuesday morning, releasing large volcanic particles into the air, according to officials.
An air quality alert has been extended for part of the Chicago area through Thursday.