Headline:
Air Quality Alert issued May 27 at 1:07AM CDT by NWS Chicago IL
Event:
Air Quality Alert
Urgency:
Unknown
Effective:
May 26, 2026 - 11:07pm
Expires:
May 27, 2026 - 10:00pm
Description:
The Illinois Environmental Protection Agency has issued an Air
Pollution Action Day for the greater Chicago Metropolitan Area
today, Wednesday May 27, and is in effect through tonight.
A Chicago area "Air Pollution Action Day" is declared when weather
conditions are such that widespread ozone and or particulate levels
are expected to be at or above the Unhealthy for Sensitive Groups
(USG) category of the Air Quality Index (AQI) for multiple days.
Ozone is expected to be the primary pollutant of concern today.
Active children and adults, especially people with pulmonary or
respiratory disease such as asthma, should limit prolonged outdoor
activity.
Area residents are urged to reduce pollution levels. Air quality
forecasts, current air quality, and tips on how you can reduce your
emissions can be found at www.airnow.gov.
Media contact...Illinois EPA.
Area Description:
McHenry; Lake; Kane; DuPage; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov