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Radon Testing
UGA Extension

Frequently Asked Questions

  1. What's considered a high test result?
  2. What types of radon test kits are there?
  3. How do I test for radon during a real estate transaction?
  4. How do I conduct the test?
  5. Can I tell if my home has a high level of radon without testing?

What's considered a high test result?

Above 4 picocuries per liter (pCi/L) is high. If your test result is over 4 pCI/L it is recommended that you test again with either a short-term (two to seven days) or long-term (three to12 months) device. If the second test result is over 4 pCi/L you should hire a professional to fix the problem.

What types of radon test kits are there?

Short term radon tests take two-90 days (depending on the test used) and are the best first step to take when testing your home for radon. They indicate the average level of radon in your home during the testing period.

Long-term radon tests are the most accurate, but take over 90 days to complete. Long-term tests are recommended as a follow-up when a short-term test kit indicates levels are close to or slightly above 4 pCi/L.  Order a long term test kit from the National Radon Program. 

How do I test for radon during a real estate transaction?

The UGA Radon Program recommends hiring a certified radon tester to perform a test during a real estate transaction. These testers are trained to use equipment that is tamper-proof and can provide a radon result quickly within the due dilligence period. There are currently no laws mandating radon testing or certification for real estate transactions in Georgia.

Find certified testers in your area:

How do I conduct the test?

Once you get your test kit, follow the directions included in it. You may also view our Radon Test Kit Instruction video.

Can I tell if my home has a high level of radon without testing?

No. The way radon enters a home is complex, and cannot be determined without testing. Things that influence radon levels include: the strength of the radon source, the way the home is built, the activity of occupants in the home, weather changes outdoors, and geology under the home.