The Illinois Emergency Management Agency has conducted a statewide screening for indoor radon. The primary purpose of the screening was to determine whether there are particular regions within Illinois which are more prone to radon than others. The measurement data includes calendar years 2003 – 2011.

Here are the results of the screening for the Illinois counties that Elliott & Associates services:

Select a County:
Cook Kendall
DeKalb La Salle
DuPage Lake
Kane McHenry
Kankakee Will

Interactive Illinois Radon Map

Clicking on the map of Illinois will open an interactive map of the state that displays average measured radon levels submitted to IEMA, color-coded by county. The map enables you to zoom in and out and to find average measured radon levels by county and zip code. Clicking on a county will bring up additional options for locating measurement and mitigation professionals as well as providing access to the measurement data for a specific county by zip code.

The Radon map is currently unavailable due to maintenance.