Radon risk in Centerville & Davis County - Radon is an invisible, odorless gas that comes from uranium in rock and soil. It can seep into homes through cracks in foundations, crawl spaces, and gaps around pipes. Because you can’t see or smell it, the only way to know your level is to test. This matters because radon is a leading cause of lung cancer for people who don’t smoke, and it can also increase risk for people who do.

Why Centerville and Davis County should pay attention

Davis County has a serious radon problem compared with many other parts of Utah. According to Alpha Energy Laboratories — the most comprehensive Utah radon dataset in history — Davis County ranks 9th highest in Utah with an average radon level of 4.1 pCi/L (picocuries per liter). That number is important because it reflects typical results from many homes, not just a few unusual cases.

Several cities in Davis County, including Centerville, Bountiful, and Layton, consistently test above the World Health Organization (WHO) mitigation threshold of 2.7 pCi/L. In other words, it’s common for homes in these cities to measure radon levels where action is recommended.

What the WHO threshold means

The WHO recommends mitigation when radon levels reach 2.7 pCi/L. At 4.1 pCi/L, the average Davis County home is well above this threshold — meaning many residents are unknowingly exposed to dangerous levels every day. Even if your home is “only a little above” the threshold, radon risk adds up over time because people spend so many hours indoors, especially during winter.

How radon gets into homes here

Radon comes from the ground, so any home that touches soil can be affected. Basements and crawl spaces are common entry points. But even homes without basements can have radon problems. Pressure differences between the air inside the house and the air in the soil can pull radon inside, and once it’s indoors, it can build up if the home is tightly sealed.

What you can do (simple steps)

1. Test your home.

• Use a short-term test (often 2–7 days) for a quick snapshot, or a long-term test (90 days to a year) for a more accurate average.
• Test the lowest lived-in level of the home (like a basement family room).

2. If results are at or above 2.7 pCi/L, consider mitigation.

• A common fix is a radon mitigation system that vents gas from beneath the home to the outside.
• These systems are usually quiet and can significantly lower radon levels.

3. Retest after changes.

• Retest after mitigation, remodeling, or major HVAC changes.

The bottom line

Radon risk in Centerville & Davis County - Because Davis County’s average level is 4.1 pCi/L and cities like Centerville often test above 2.7 pCi/L, testing is a smart step for nearly every household. Radon is easy to ignore, but it is also one of the easiest home health risks to measure and reduce. A simple test can help you protect your home and your long-term health. Order a free test today.