Question 1

What is radon?

Accepted Answer

Radon is a naturally occurring radioactive gas produced by the decay of uranium in soil and rock. It's colorless, odorless, and tasteless — completely undetectable without a test. When radon seeps into homes through foundation cracks, it can accumulate to dangerous levels.

Question 2

How does radon enter homes?

Accepted Answer

Radon enters homes through cracks in foundations, construction joints, gaps around service pipes, and even well water. Because homes create a slight vacuum relative to the surrounding soil, they actively draw radon-laden air inside.

Question 3

What level of radon is dangerous?

Accepted Answer

There is no safe level of radon — any exposure carries some risk. The EPA recommends considering mitigation at 2.0 pCi/L. The World Health Organization (WHO) recommends mitigation at 2.7 pCi/L. Utah Radon follows WHO guidance and recommends taking action at 2.7 pCi/L or above. The average indoor radon level in the US is 1.3 pCi/L; Utah's average is significantly higher.

Question 4

Can radon be fixed?

Accepted Answer

Yes. Radon mitigation is well understood and highly effective. A sub-slab depressurization (SSD) system — a pipe and fan that vents radon from beneath the foundation — can reduce indoor radon levels by up to 99%. Systems typically cost $1,800–$2,300 and last 10–20 years.

Question 5

Is radon worse in Utah?

Accepted Answer

Yes. Utah's geology — uranium-rich granite and shale deposits from the Wasatch and Oquirrh mountain ranges — makes it one of the highest-risk states in the country. Approximately 48% of Utah homes have radon levels above the EPA's consideration threshold of 2.0 pCi/L — and a significant portion exceed the WHO mitigation threshold of 2.7 pCi/L — compared to a national average of about 8%.

Understanding Radon

The silent threat in Utah homes

Invisible & odorless

Enters through foundations

Kills 200–300 Utahns per year

Radon is a proven killer — and it’s in Utah homes

Your radon questions answered

Protect your family today