Radon Levels in Virginia
Virginia 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 27% of Virginia homes test above the EPA action level of 4.0 pCi/L.
Virginia Radon Summary
High Radon Risk State
Virginia is among the higher-risk states for residential radon. The Virginia 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 Virginia
- Western Virginia (Shenandoah Valley, Blue Ridge) has the highest radon levels
- Northern Virginia (DC suburbs) has significant radon risk
- Coastal Virginia has lower levels
- VDH runs an active radon education program
Virginia Testing Requirements & Recommendations
Virginia requires disclosure in real estate sales. Testing recommended, particularly in western counties.
Northern Virginia's dense housing market has created significant demand for radon mitigation services.
Major Cities in Virginia
Radon levels can vary significantly within Virginia 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 Virginia 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 Virginia. 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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