More than half of New York, 34 out of 62 counties are considered high risk for radon gas. Radon is the second leading cause of lung cancer in most of the world and accounts for more than 20,000 lung cancer deaths per year in the USA. The red counties in the New York radon map below are at the greatest risk, in which over 50% of the homes are predicted to have radon levels above 4.0 pCi/L.
The EPA recommends taking action, if the level of radon is 4.0 pCi/L or higher. The action required is usually installing a radon mitigation system, at the average cost of about$1200. For this important reason most home buyers have a radon test done along with a home inspection prior to buying a house.

What do the colors mean?
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Zone 1 counties have a predicted average indoor radon screening level greater than 4 pCi/L (picocuries per liter) (red zones) | Highest Potential |
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Zone 2 counties have a predicted average indoor radon screening level between 2 and 4 pCi/L (orange zones) | Moderate Potential |
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Zone 3 counties have a predicted average indoor radon screening level less than 2 pCi/L (yellow zones) | Low Potential |






