Radon Levels In Illinois By Zip Code - Ca, co, ct, fl, il, in, ia, ks, ky, me, mn, ne, nh, nj, oh, pa, ri,. Within this site you will find information about radon levels of every illinois county. Web states with credentialing programs to date: Zone 3 (3 counties) zone 2 (43 counties) zone 1 (56 counties) highest potential: Web the purpose of this map is to assist national, state and local organizations to target their resources and to implement. Web the average illinois indoor air radon concentration is 5.1 pci/l, above the epa action level (source: This map is not intended to be used to determine if a home in a given county or zip code should. Web view map disclaimer and purpose.
Web view map disclaimer and purpose. Web the purpose of this map is to assist national, state and local organizations to target their resources and to implement. This map is not intended to be used to determine if a home in a given county or zip code should. Web states with credentialing programs to date: Within this site you will find information about radon levels of every illinois county. Web the average illinois indoor air radon concentration is 5.1 pci/l, above the epa action level (source: Ca, co, ct, fl, il, in, ia, ks, ky, me, mn, ne, nh, nj, oh, pa, ri,. Zone 3 (3 counties) zone 2 (43 counties) zone 1 (56 counties) highest potential: