Monday morning, AirNow.gov had the Chicago air quality index at 155, which is in the unhealthy category. By noon, the level had dropped to 110, which is unhealthy for sensitive groups.
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The alert by the Illinois EPA and Indiana EPA is in effect for Cook, DuPage, Kendall Lake, McHenry and Will counties in Illinois and Lake, La Porte, Porter, Newton Jasper and Starke counties in Indiana.
ABC7 Meteorologist Trace Butler said better air quality is expected to move into the area Monday night
Recommendations from the U.S. EPA for at-risk groups:
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- Avoid strenuous outdoor activities
- Keep outdoor activities short
- Move physical activities indoors or reschedule them altogether.