You’ve found radon in your home – what should you do?
First, don’t panic!
Radon is everywhere and fixing a radon problem is very straight-forward.
… if you have performed only a single test, the US EPA recommends a follow-up test before fixing your home. Radon levels fluctuate naturally and it is important to know if the initial test was an accurate assessment of your home’s average radon level or whether the high levels could have been caused by unusual weather.
How To Follow-Up Your First Test
If your first test has a result between 4 and 8 pCi/L, you have the choice of testing again. If results are needed quickly, you can re-test with a short-term (2-7 days) device. For a better understanding of your home’s year-round average, you can test with a long-term (3-12 months) device.
If the results of your first test are higher than 8 pCi/L, then it is recommended that you test again using another short-term test device. The higher the radon concentration above 8 pCi/L, the sooner you should conduct a retest.
Interpreting Your Follow-Up Results
If you are involved in a real estate transaction, fixing the house prior to sale is recommended if the average of your original and follow-up tests are 4.0 pCi/L or higher.
If you chose a long-term device for your second test, the EPA recommends fixing your home if the follow-up result is 4.0 pCi/L or higher.
If the results of your follow-up test with a short-term test are still 4.0 pCi/L or higher, you are urged to consider fixing your home.
If your follow-up test results are below the 4.0 pCi/L EPA action level, you should test again sometime in the future because your initial test has shown that your house has the potential to produce high radon levels at times.