Radon Levels in New York
New York is classified as an EPA Zone 1 state with a high risk for radon. Average indoor radon levels range from 2 to 6 pCi/L, and approximately 30% of New York homes test above the EPA action level of 4.0 pCi/L.
New York Radon Summary
High Radon Risk State
New York is among the higher-risk states for residential radon. The New York Department of Health strongly recommends that all residents test their homes. If you have not tested your home, consider ordering a test kit or radon detector today.
Key Facts About Radon in New York
- Upstate New York has significantly higher radon levels than New York City
- The Adirondacks and Catskills have particularly high radon potential
- NYC's high-rise building stock naturally dilutes radon (lower floors still at risk)
- NY DOH runs an active radon education program
New York Testing Requirements & Recommendations
New York recommends testing and requires disclosure in real estate transactions. NYC apartments on lower floors should test.
Upstate NY has robust radon mitigation services; NYC mitigation is less common but available.
Major Cities in New York
Radon levels can vary significantly within New York depending on local geology. All residents — regardless of city — should test their specific home, as neighborhood-level radon varies independently of broader state and county averages.
What Should New York Residents Do?
Test Your Home
Use a short-term charcoal test kit ($15–$25) for an initial reading, or a continuous radon detector for ongoing monitoring. Test in your basement or lowest livable area.
Understand Your Result
If your result is below 2.0 pCi/L: monitor periodically. Between 2.0–4.0 pCi/L: consider mitigation. Above 4.0 pCi/L: the EPA recommends mitigation. Above 8.0 pCi/L: take action promptly.
Hire a Certified Contractor if Needed
Look for NRPP or NRSB-certified radon mitigation contractors in New York. Mitigation systems typically cost $800–$2,500 and can reduce radon levels by 50–99%.
Verify with a Follow-Up Test
After mitigation, test again to confirm the system is working. Retest every 2 years, or after significant home renovations.
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