Radon is one of the most misunderstood health risks in American homes. From confusing headlines to outdated advice, myths about radon exposure continue to circulate—and they’re putting lives at risk. In reality, radon is a well-documented cause of lung cancer, and the only way to know if your home is affected is to test. Let’s clear the air by separating facts from fiction.
Myth #1 — “Radon is only a problem in certain parts of the country”
Fact: Radon exists in all 50 states. While some areas have higher average levels, dangerous radon can be found anywhere. Even homes in so-called “low-risk” zones can test above the EPA action level of 4 pCi/L. Radon levels can vary house-to-house—even next door neighbors may have completely different readings due to soil composition, home construction, and ventilation patterns.
Myth #2 — “Scientists aren’t sure if radon really causes health problems”
Fact: The link between radon and lung cancer is backed by decades of global research. Radon is classified as a Class A carcinogen by the EPA, World Health Organization, and the National Cancer Institute. Studies show a clear dose-response relationship: higher radon levels and longer exposure equal higher cancer risk. In the U.S., radon causes about 21,000 lung cancer deaths each year.
Myth #3 — “You can feel radon exposure—there are symptoms to watch for”
Fact: There are no immediate symptoms of radon exposure. You can’t see, smell, or taste it. It causes no cough, no dizziness, and no irritation. The damage happens silently, through radioactive particles inhaled into the lungs over time. When symptoms do appear, they are signs of lung cancer—not radon itself—and they usually emerge years after initial exposure.
Myth #4 — “Radon testing is difficult, time-consuming, and expensive”
Fact: Radon testing is simple and affordable. You can:
- Buy a DIY test kit for $15–$50
- Hire a professional test for $150–$500
- Get results in as little as 2–7 days for short-term tests
- Use long-term monitors for more accurate year-round readings
Instructions are straightforward, and testing typically takes less than 10 minutes of hands-on time.
Myth #5 — “If I’ve lived here for years, testing now won’t help”
Fact: It’s never too late to test. While radon damage is cumulative, reducing exposure stops additional harm. Mitigation immediately lowers radon levels and reduces future lung cancer risk—for you, your family, and even future homeowners. There’s no “point of no return.” Testing and acting now still matters.
Myth #6 — “Low radon levels are safe”
Fact: There is no safe level of radon. Even at 2 pCi/L—below the EPA action level—the cancer risk is about 4 in 1,000 for non-smokers. At 4 pCi/L, the risk is similar to smoking half a pack of cigarettes a day. The World Health Organization recommends mitigation at 2.7 pCi/L. Lower is always better when it comes to indoor radon levels.
Myth #7 — “New homes don’t have radon problems”
Fact: Modern construction often traps radon more effectively due to energy-tight designs. Even homes with passive radon-resistant features need testing after completion. Local soil conditions and construction materials still allow radon to enter—new does not mean radon-free.
Myth #8 — “Radon only affects basements”
Fact: Radon moves through the entire home via air circulation and the “stack effect,” which pulls air upward from lower levels. HVAC systems can also spread radon. In larger homes, testing multiple levels may be necessary. Always start with the lowest livable space.
Myth #9 — “Mitigation doesn’t work (or makes homes drafty/cold)”
Fact: Modern radon mitigation systems reduce levels by up to 99% and are designed to be energy-efficient. They do not create drafts or cold spots. Most systems involve a quiet fan and a vent pipe—comparable in cost and appearance to a standard home improvement.
Local Reality Check
South Dakota ranks among the top states for radon risk. Nearly 60% of homes test above 4 pCi/L, and many rural and urban properties exceed national averages. Don’t assume your home is safe—test to be certain.
Myths create delays. Delays increase risk. Protect your household by testing for radon and clearing the air for good. Don’t guess—test. Book your radon test today.