What is a safe level of radon?
Tuesday, March 24, 2020
Less than 4.0 picocuries per liter of air (pCi/L) is considered a reasonably safe level for indoor air by the United States Environmental Protection Agency (EPA). The World Health Organization (WHO) sets a lower maximum of 2.7 pCi/L.
But neither of these numbers is offered as being absolutely safe, because just a small amount of radon breathed into the lungs will cause some radioactive damage; and that damage may—or may not—lead to lung cancer. Even outdoor air contains an average of 0.7 pCi/L. So while you can’t completely avoid radon exposure, which is the only way to be 100% safe, reduction is a sensible goal.
For a more detailed explanation of the risks of radon exposure, go to our blog post What radon level is dangerous?
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