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Winter is when Minnesotans spend more time indoors, which can increase exposure to radon gas. Radon is a naturally occurring, odorless, and colorless gas that forms when radioactive materials in soil and rock break down. Once it seeps into a home through cracks in the foundation, gaps around pipes, or other openings, it can become trapped and accumulate to dangerous levels. Radon is the leading cause of lung cancer in non-smokers, making it essential to know your home’s radon levels.

The only way to detect radon is through testing, as it has no smell or visible signs. Licensed professionals use specialized equipment to measure radon levels quickly and accurately, often providing results in just a few days. Testing is recommended every 2-5 years or after significant renovations, such as changes to your home’s foundation or basement. If levels exceed the EPA guideline of 4 pCi/L, a radon mitigation system can be installed to significantly reduce your exposure and bring levels to a safer range.

Minnesota homes are particularly susceptible to high radon levels due to a combination of factors. Our glacial history left behind soils and rocks that release radon, and our long, cold winters mean we seal our homes tightly for months, which prevents radon from naturally dissipating. Additionally, many Minnesota homes have basements, which provide more entry points for radon gas to seep in. These unique factors make testing critical for ensuring the safety and health of your home and family.