Can radon levels change periodically?
(Back to top) Yes. Levels can change periodically depending on changes in the environment. Very wet or very dry conditions can impact the ecological structure of the ground around and beneath your home. When this occurs, there is the potential for uranium levels to rise resulting in increased levels of radon. If the ground around your home is saturated with moisture such as in a heavy rainstorm, the moisture acts like a cap not allowing the radon to escape which forces it into your home. The same can be said when the ground is frozen or covered with snow. Wind can also change the pressure put on the ground around your home, causing radon to diffuse into your home, which will raise the radon level. For these reasons your home should not be measured for radon during severe weather or high winds. The EPA and IEMA recommend that you test your home every two years to keep radon levels in check.
