Utah County · Radon Data
Wayne County Radon Levels
8.6
pCi/L average
77
tests analyzed
3.2×
WHO threshold (2.7)
Risk classification
What 8.6 pCi/L Means for Wayne County Homes
Very High Risk
Significantly above the EPA action level. Mitigation is strongly recommended for any home in this area. Long-term exposure at these levels can more than double lung cancer risk for non-smokers.
Wayne County's average of 8.6 pCi/L is 3.2× the WHO mitigation threshold of 2.7 pCi/L and 2.2× the EPA action level of 4.0 pCi/L. Utah's statewide average is 4.4 pCi/L, and the national average is 1.3 pCi/L.
County averages represent the arithmetic mean of all pre-mitigation tests in the area — they don't mean every home will measure exactly 8.6 pCi/L. Radon levels vary significantly based on foundation type, soil composition, construction materials, and ventilation. Two adjacent homes can have radon levels that differ by a factor of 5 or more. The only way to know your home's level is to test.
There is no safe level of radon exposure. Long-term exposure to radon is the second-leading cause of lung cancer in the US, responsible for approximately 21,000 deaths annually. The good news: mitigation systems are effective, reliable, and typically reduce radon levels by 80–99%.
Why Does Wayne County Have Elevated Radon Levels?
Wayne County is part of the Colorado Plateau — the same uranium-rich geological province that produced significant uranium mining across southeastern Utah. The sedimentary rock formations contain thorium and uranium deposits that decay to radon, contributing to the county's elevated average.
Regardless of county-level geology, the only authoritative measurement for any home is a test conducted inside that specific building. Foundation type, crawl space vs. slab construction, and ventilation all dramatically affect indoor levels — which is why testing every home individually is the only reliable approach.
Wayne County Radon — Frequently Asked Questions
What is the average radon level in Wayne County, Utah?
Wayne County has an average indoor radon level of 8.6 pCi/L based on 77 pre-mitigation tests analyzed by Alpha Energy Laboratories from 2015 through August 2025. This is 3.2× the WHO's recommended mitigation threshold of 2.7 pCi/L and 2× Utah's statewide average of 4.4 pCi/L.
Is radon a serious concern in Wayne County?
Yes. Wayne County's average of 8.6 pCi/L is classified as very high risk. Significantly above the EPA action level. Mitigation is strongly recommended for any home in this area. Long-term exposure at these levels can more than double lung cancer risk for non-smokers. Radon is the second-leading cause of lung cancer in the United States after smoking, responsible for approximately 21,000 deaths annually.
How do I get a radon test in Wayne County, Utah?
Utah Radon provides free certified radon test kits to Utah homeowners, including those in Wayne County. The kit is mailed to your home, you place it according to instructions, mail it back to Alpha Energy Laboratories, and receive your results within 2–3 weeks. There is no cost for the kit, shipping, or lab analysis. Request yours at utahradon.org/free-test-kit.
Protect your Wayne County home
With a county average of 8.6 pCi/L — 3.2× the WHO mitigation threshold — Wayne County homes should be tested. Your free kit is waiting.
Request your free test kit