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Radon test results, simplified

April 24, 2024
< 2 min read
radon test results

Radon measurement

The amount of radon gas in the air is measured in picocuries per liter of air (pCi/L). When you receive radon test results, you’ll see a number followed by “pCi/L,” which helps you understand if your home’s radon level is low, moderate, or dangerously high. 

Radon action levels

The average outdoor air contains 0.4 pCi/L of radon gas. While no radon level is considered safe, this low level does not pose a significant threat. However, radon can concentrate inside buildings and pose a major risk to your health and those who live in the same building, including pets. 

Leading health organizations have varying “action levels,” which are the levels they recommend taking action and installing a radon mitigation system. The Environmental Protection Agency (EPA) recommends considering mitigation at 2.0 pCi/L and strongly recommends installing a system at 4.0 pCi/L. The World Health Organization (WHO) recommends mitigation at 2.7 pCi/L.

Between 2.0 and 4.0 pCi/L, experts may have varying recommendations. However, if you or your loved ones are spending a significant amount of time on the lowest level of your home and your home tests at 2.0 pCi/L, it’s a good idea to get a system installed to err on the side of caution. On the other hand, if the lowest level of your home is unused and is in the low 2.0 range, it’s less urgent to install a system.

Click here to request a free radon test. If your home tests high, our team will walk you through the best course of action for your specific scenario.

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