When purchasing a home, environmental factors like flooding, hurricanes, and even soil stability are common concerns—especially in coastal areas. But what about radon? Radon is a naturally occurring radioactive gas that can pose serious health risks, and many homebuyers wonder if they should test for it, even in sandy coastal regions like southeastern North Carolina. Here’s what you need to know.
What Is Radon and Where Does It Come From?
Radon is a colorless, odorless gas that forms from the natural breakdown of uranium in soil, rock, and water. It can seep into homes through cracks in the foundation, crawl spaces, or even well water. Long-term exposure to high levels of radon is a leading cause of lung cancer, making it a serious concern for homeowners nationwide.
Is Radon a Concern in Coastal Southeastern North Carolina?
In general, radon levels tend to be lower in coastal regions compared to inland areas. This is largely due to the composition of coastal soil, which is often sandy and less likely to trap radon gas. Here’s why southeastern North Carolina typically has lower radon risks:
- Sandy Soil Composition – Unlike dense, clay-heavy soils found in mountainous and Piedmont regions, sandy soil allows radon gas to disperse more easily, reducing its ability to accumulate in homes.
- Proximity to the Ocean – Coastal areas often have higher ventilation and natural air movement, which can help dilute radon concentrations before they reach dangerous levels indoors.
- Lower Underlying Uranium Deposits – Radon levels are generally higher in areas with high concentrations of uranium-rich rock. The geology of coastal southeastern North Carolina contains fewer of these rock formations, further lowering the risk.
Should You Still Test for Radon?
While coastal areas generally have lower radon levels, no location is entirely risk-free. The Environmental Protection Agency (EPA) recommends that all homes be tested for radon, regardless of geographic location. Here’s why testing may still be a good idea:
- Home Construction Variations – Certain foundation types, such as basements or enclosed crawl spaces, can increase the potential for radon accumulation, even in sandy soils.
- Localized Radon Hotspots – Although uncommon, some areas in coastal North Carolina may have higher radon concentrations due to unique geological features or human-made factors.
- Peace of Mind – Radon tests are inexpensive and easy to conduct. A simple test can confirm whether radon levels are safe, allowing homebuyers to make informed decisions.
How to Test for Radon in Coastal Homes
If you’re buying a home in southeastern North Carolina and want to test for radon, here’s how to do it:
- Use a DIY Radon Test Kit – Available online or at home improvement stores, these kits provide an affordable way to check radon levels.
- Hire a Professional – Certified radon inspectors can conduct more comprehensive testing and recommend mitigation if necessary.
- Check with Local Authorities – Some county health departments offer radon testing programs or can provide historical data on local radon levels.
Bottom Line: Is Radon Testing Necessary?
While the risk of radon in coastal southeastern North Carolina is generally low, testing is the only way to know for sure. Homebuyers should consider radon testing as part of their home inspection process, especially if the property has a basement or enclosed crawl space. Given the low cost and potential health risks, a simple test can offer valuable peace of mind.
Have questions about radon testing or coastal home buying? Reach out and someone from our team can answer any questions or concerns you may have; and if we can’t answer it, put you in contact with a local contractor in the community who can!
***The following link will take you to the North Carolina government site with additional information.
https://www.ncdhhs.gov/divisions/health-service-regulation/north-carolina-radon-program/testing-radon