AQ Index for Madison County, Illinois

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Air Quality Index for Madison County, Illinois

The area with the highest AQ Index (as of 18:00 CST) in is in the St. Louis (Metro-east) area. Particle Pollution (PM2.5) is measuring at 33 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.

Over the next few days, the highest primary air pollutant will be Particle Pollution (PM2.5) in the St. Louis (Metro-east) area. It is forecasted to be 0 (Good), meaning air quality is satisfactory, and air pollution poses little or no risk.

Below is a clickable map of Madison County, Illinois. The markers on the map identify large, populated cities. If you hover over a marker, it will display the city name and the current AQ index. The color of the city markers also references the current AQ risk level.

Range0 - 5051 - 100101 - 150151 - 200201 - 300301 - 500
Color
CategoryGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardous

Last Updated 18 minutes ago

AQ Index Forecast by City in Madison County

Below is a list of cities in Madison County where we track and forecast the AQ index. Click on a city name to get the current AQ index as well as any available forcasts.

Alton Granite City Edwardsville Collinsville Godfrey
Glen Carbon Troy Wood River Highland Bethalto
Maryville East Alton Pontoon Beach Rosewood Heights Holiday Shores
Madison South Roxana Venice Hartford Roxana
St. Jacob Mitchell Marine Worden Hamel
Livingston Alhambra Grantfork Moro New Douglas
Prairietown Williamson