Baton Rouge, LA – As Thanksgiving gatherings bring families together across Louisiana, state health officials are warning of a silent and deadly danger that could be trapped inside homes this week. The Centers for Disease Control and Prevention (CDC) and the Louisiana Department of Health (LDH) say radon, an invisible radioactive gas, can pose a serious health threat when enclosed air is not circulating — especially during the colder months.
Radon forms as uranium in rock and soil naturally decays, releasing gas that can seep into homes through cracks in concrete, sump pumps, or foundation joints. Once inside, it can accumulate to unsafe levels — and because it’s odorless, colorless, and tasteless, most people have no idea they’re being exposed.
The U.S. Environmental Protection Agency (EPA) identifies radon as the second-leading cause of lung cancer nationwide, responsible for more than 21,000 deaths each year. While Louisiana’s overall radon levels are generally lower than those in northern states, experts say pockets of elevated risk still exist — particularly in northern and central parishes, including Baton Rouge, Shreveport, and Monroe.
Testing is the only way to detect radon. Short-term test kits, available online, at hardware stores, or through the Louisiana Radon Program, can measure levels in just a few days and cost under $30. The EPA recommends taking action if readings reach 4 picocuries per liter (pCi/L) or higher — though no level is completely safe.
If elevated levels are found, certified mitigation contractors can install systems that vent radon safely outside, reducing concentrations by up to 90%. Sealing foundation cracks and improving ventilation can also help as short-term solutions.
“Radon doesn’t make noise or leave a smell, but it kills thousands of Americans every year,” CDC officials said. “Testing your home this Thanksgiving could save your family’s life.”
As Louisiana families gather indoors this week, health experts urge residents to make radon testing part of their holiday home checklist before this silent killer lingers through the winter months.
