How Does Radon Exposure Affect Your Health?
Understanding radon health risks starts with knowing what radon is and why testing your home matters. Radon is a naturally occurring radioactive gas that can build up inside homes without any visible signs or noticeable odor. When radon is inhaled, radioactive particles can damage cells in the lungs, increasing the risk of lung cancer over time.
The risk depends on factors including the radon concentration, how long a person is exposed, and smoking history. Because radon exposure causes no immediate warning symptoms, testing your home is the only way to determine whether elevated levels are present.
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The Connection Between Radon and Lung Cancer
According to the U.S. Environmental Protection Agency (EPA), radon is the second leading cause of lung cancer in the United States, after smoking. The EPA estimates that approximately 21,000 lung cancer deaths each year are associated with radon exposure.
When radon gas breaks down, it produces radioactive particles that can become trapped in the lungs when inhaled. Over time, radiation from these particles can damage lung cells and increase the risk of developing lung cancer.
Smoking significantly increases the risk of lung cancer from radon exposure, but people who have never smoked are also at risk. This is why testing is important for every home, regardless of whether anyone in the household smokes.
Can Radon Cause Lung Cancer in Nonsmokers?
Yes. Radon exposure can cause lung cancer in people who have never smoked. According to the U.S. Environmental Protection Agency (EPA), radon is the leading cause of lung cancer among nonsmokers.
Although smoking greatly increases the risk associated with radon exposure, nonsmokers are not immune. Breathing elevated levels of radon over many years can damage lung cells and increase the likelihood of developing lung cancer.
One of the greatest concerns with radon is that exposure produces no immediate warning signs. People can live in homes with elevated radon levels for years without knowing it. The only way to determine whether your home has elevated radon levels is through testing.
Fortunately, radon testing is simple, and effective mitigation systems can significantly reduce elevated levels. Understanding your home’s radon levels allows you to make informed decisions about protecting your family’s long-term health.
How Does Long-Term Radon Exposure Affect Your Risk?
Radon-related lung cancer risk depends on both the concentration of radon in the air and how long a person is exposed. Generally, higher radon levels and longer periods of exposure increase the risk of developing lung cancer.
Radon exposure does not typically cause immediate symptoms. Instead, damage to lung cells can accumulate over many years, and lung cancer may not develop until long after exposure began. This is why living in a home with elevated radon levels for an extended period is a concern, even when everyone in the household feels healthy.
Because radon levels can change with seasons, weather conditions, and how a home is operated, periodic testing is important. Identifying elevated levels early and taking appropriate steps to reduce them can help lower long-term exposure and associated health risks.
Are children more vulnerable to radon exposure?
Children can be exposed to radon just like adults, and there are reasons to pay particular attention to their long-term exposure. Children generally breathe faster and have smaller, developing lungs, which may result in higher radiation doses from radon exposure compared with adults breathing the same air.
However, researchers have not conclusively established that children are more likely than adults to develop lung cancer from the same radon exposure. What we do know is that radon exposure contributes to long-term lung cancer risk, and reducing unnecessary exposure is beneficial for the entire family.
Because children may spend many years growing up in the same home, testing for radon is a sensible precaution. Identifying elevated levels and correcting them can help protect everyone who lives there, now and in the future.
Is Radon Linked to Other Types of Cancer?
Lung cancer is the only cancer conclusively established to be caused by inhaled radon, but researchers are investigating possible connections to other cancers, including leukemia and lymphoma.
Some studies have identified associations between residential radon exposure and certain blood cancers. Research has suggested possible increased risks among women and children, although findings have been inconsistent and researchers have not established a cause-and-effect relationship.
These findings are an important area of ongoing research, but they should not be interpreted as proof that radon causes blood cancers. At Total Radon Solutions, we believe homeowners deserve access to emerging scientific information while clearly understanding the difference between established health risks and possible associations still being studied.
Research: Residential Radon Exposure and Blood Cancer Risk in Women (2016)
Research: Residential Radon Exposure and Childhood Cancer Risk (2024)
How Can You Reduce Your Family’s Radon Exposure?
The first step in reducing radon exposure is knowing your home’s radon level. Because radon cannot be seen, smelled, or tasted, testing is the only way to determine whether elevated levels are present.
If testing reveals elevated radon levels, a professionally designed mitigation system can significantly reduce the amount of radon entering your home. These systems typically use a specialized fan and piping to draw radon-bearing soil gas from beneath the foundation and safely discharge it outdoors. Follow-up testing is essential to confirm that the system is working effectively.
At Total Radon Solutions, we offer FREE radon testing throughout Utah and provide no-obligation mitigation estimates when elevated levels are found. We’ll explain your results, answer your questions, and help you understand your options without sales pressure. Our goal is to help you make informed decisions about your family’s long-term health.