Illinois Radon Gas Information

14. 11. 06
posted by: SWAT Environmental
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Illinois County Radon Breakdown

illinois zone 1 radon map
Illinois Radon Zone 1 : Highest Radon Potential
  • Highest Potential : Indoor radon levels greater than 4pCi/L
  • Moderate Potential : Indoor radon levels between 2pCi/L and 4pCi/L
  • Lowest Potential : Indoor radon levels less than 2pCi/L
  • Zone 1 Counties : Adams, Boone, Brown, Bureau, Calhoun, Carroll, Cass, Champaign, Coles, De Witt, DeKalb, Douglas, Edgar, Ford, Fulton, Greene, Grundy, Hancock, Henderson, Henry, Iroquois, Jersey, Jo Daviess, Kane, Kendall, Knox, La Salle, Lee, Livingston, Logan, Macon, Marshall, Mason, McDonough, McLean, Menard, Mercer, Morgan, Moultrie, Ogle, Peoria, Piatt, Pike, Putnam, Rock Island, Sangamon, Schuyler, Scott, Stark, Stephenson, Tazewell, Vermilion, Warren, Whiteside, Winnebago, Woodford
illinois zone 2 radon map
Illinois Radon Zone 2 : Moderate Radon Potential
  • Highest Potential : Indoor radon levels greater than 4pCi/L
  • Moderate Potential : Indoor radon levels between 2pCi/L and 4pCi/L
  • Lowest Potential : Indoor radon levels less than 2pCi/L
  • Zone 2 Counties : Bond, Christian, Clark, Clay, Clinton, Cook, Crawford, Cumberland, DuPage, Edwards, Effingham, Fayette, Franklin, Gallatin, Hamilton, Hardin, Jackson, Jasper, Jefferson, Johnson, Kankakee, Lake, Lawrence, Macoupin, Madison, Marion, McHenry, Monroe, Montgomery, Perry, Pope, Randolph, Richland, Saline, Shelby, St. Clair, Union, Wabash, Washington, Wayne, White, Will, Williamson
illinois zone 3 radon map
Illinois Radon Zone 3 : Lowest Radon Potential
  • Highest Potential : Indoor radon levels greater than 4pCi/L
  • Moderate Potential : Indoor radon levels between 2pCi/L and 4pCi/L
  • Lowest Potential : Indoor radon levels less than 2pCi/L
  • Zone 3 Counties : Alexander, Massac, & Pulaski
illinois radon test kits
Illinois Radon Test Kits

Despite what zone you fall under testing your home is the only way to make sure that you are safe from radon. Testing your home for radon gas is very easy and most of the time you can get test kits at very reasonable rates with quick turn around time on your test results. We highly suggest that everyone test on a yearly basis and in some areas depending on your geological soil make you may benefit more from an actual radon monitor.

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Get a quote from a qualified radon specialist

If you have tested your home already and you need to speak to a qualified radon specialist fill out our free no obligation price quote now to find out about a radon mitigation system installation in Illinois. SWAT Environmental is the largest radon mitigation company in Illinois and we are here to serve you.

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What you should know about radon in Illinois

illinois radon map info

Illinois Radon Levels

The indoor radon levels in Illinois are very serious. The entire state of Illinois has radon levels above average with the entire state falling in the high to moderate indoor radon levels. Two thirds of the northern part of Illinois has high risk radon levels and the bottom one third and a small north eastern tip of Illinois radon levels are at moderate risk leaving only 3 counties at the very bottom of Illinois with low risk indoor radon levels. The entire state of Illinois is above average no matter which county that you live in meaning that it is something to not take lightly or to avoid. Testing your home is your best option to know where you are for indoor radon levels in your home or business. Don't hesitate to have a test done and get the help you need with your radon mitigation needs.

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Illinois Radon Gas?

Radon is a gas that is produced by the breakdown of uranium in the soil. Radon can't be seen, smelled, or tasted and has been proven to cause cancer due to exposure over a long period of time. Radon is an invisible and invasive gas that penetrates your homes slab, crawlspace, or basement areas through cracks and imperfections in your homes structure. Radon is all around us even in the outdoor air, but when it can collect in your home it can be dangerous.

*the map above is not 100% accurate as there are many factors for what radon levels actually are in every area, This map should only be used as a reference to the areas and what the areas average indoor radon levels may be. No matter what your radon level can only be determined by an actual radon test administered by or ordered from a professional radon testing facility.