Radon in Salt Lake City, Utah

Salt Lake City sits in the Salt Lake Valley, surrounded by the Wasatch Mountains and Oquirrh Mountains — both rich in uranium-bearing granite. This geology, combined with valley inversion patterns that trap air, makes Salt Lake City one of Utah's highest-risk areas for indoor radon. There is no safe level of radon — the WHO recommends mitigation at 2.7 pCi/L, and a large share of Salt Lake City homes exceed this threshold.