Radon is a natural gas that is found in every home in Utah. It comes through the ground and can cause lung cancer and other serious health problems. Radon can be mitigated, but not knowing the levels of radon in your house means you cannot know if you need to mitigate it.
In the state of Utah, anything above a radon level of 4.0 ppm should be mitigated to protect against this natural gas. Just because your neighbor doesn’t have radon, doesn’t mean that your house won’t have radon. Because it is a natural gas, it can enter your house even if your neighbors have basically none.