The air quality forecasts presented in the CNN bulletins are provided by the Copernicus Atmosphere Monitoring Service (CAMS).

A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy levels across the region. Latest U.S.

The Air Quality Index (AQI) uses a color-coded scale to inform the public about air pollution levels and potential health risks. Michigan residents can check the AQI through various online ...

In Chicago, the Air Quality Index reached 209 by noon on Tuesday, the worst reading of any major city in the world for the day, according to IQAir, a Swiss air-quality technology company.

What does the air quality index mean? The AQI shows the outdoor air quality for public health. It features six color-coded categories, from good (0-50) to hazardous (301 plus).

Los Angeles Air Quality Index map. Extreme fire behavior, including "short and long-range spotting," continues to challenge firefighting efforts, Cal Fire said in an incident update Wednesday.

How to find Chicago's AQI AirNow provides a tool for residents to search their ZIP code to see what their forecasted air quality is, both in real time and for the days ahead.

An AQI below 50 is considered "healthy," 50 to 100 is "moderate," 100 to 150 is unhealthy for "sensitive groups," and anything above 150 is hazardous for everyone.

Air quality index dropping as more wildfire smoke from Canada moves toward New Jersey 3-minute read. Debbi Ungerman Amanda Oglesby. Asbury Park Press.

Find out the AQI in your area. Residents in northern Illinois will experience degraded air quality today as rain brings Canadian wildfire smoke south. Infant dies in Peoria after 'traumatic' event.

Cincinnati's AQI measured 126 Monday morning. You can see the current conditions by using this interactive map here. What to do during an air quality alert?

The air quality forecasts presented in the CNN bulletins are provided by the Copernicus Atmosphere Monitoring Service (CAMS).