Private Sewage & Water Supply Program
Radon is a colorless, odorless, radioactive gas in the soil that comes from naturally occurring uranium in the soil. This gas can build up in your home and has been shown to cause lung cancer. Radon can enter your home due to air pressure and temperature differences between inside and outside the home. The only way to know if you have radon in your home is to test for it. Radon test kits may be available at various places such as hardware or home improvement stores or from various agencies.
Southern 7 Health Department has received funding to offer Radon Test Kits at a reduced rate the public.  A list of radon measurement professionals and sources of radon test kits and testing can be found on IEMA's website. They do not endorse any company and simply provide the list as a service to the residents of Illinois. IEMA also guidelines for measuring radon in the home.