Friday, January 20, 2017

Radon in Your Home - Show Me Health



Our coldest months of the year are upon us, and we’re all scrambling to stay warm.  Since our doors and windows remain closed against the cold, it’s the perfect time of year to get an accurate result from a radon test of your home.  Approximately 1 out of 15 homes in the United States has increased levels of radon.  Testing is the only way to know if your home has a problem. 

What is radon?

Radon is a colorless, tasteless and odorless gas that causes lung cancer. Radon can build up to dangerous levels inside homes, schools and other buildings. Exposure to radon is the second leading cause of lung cancer in the United States, after smoking.

Radon gas occurs naturally. It forms when uranium breaks down to radium, which in turn breaks down to form radon. As radon decays, it releases radioactive byproducts that are inhaled and can cause lung cancer. Radon-related lung cancers are responsible for an estimated 21,000 deaths annually in the United States.

How does it get in my home?

Radon is emitted from the ground and enters a home through cracks in walls, basement floors, foundations and other openings. Because radon comes from rock and soil, it can be found anywhere. Exposure to limited concentrations, like those found outdoors, is impossible to avoid. However, when radon gets trapped indoors, it may build up to dangerous concentrations.

The most important source of radon gas indoors is the soil and rock surrounding the building. By sealing your home to keep radon from getting through cracks and openings, you can significantly reduce your home's radon levels.


Less frequently, radon may enter buildings from radon-contaminated drinking water used in bathroom showers and sprays, though this occurs only when the water comes from a private well. More recently, concerns have been raised about the radon released indoors from granite countertops or tiles. However, these sources are rarely a problem by themselves.

Radon is not known to cause asthma or any other type of respiratory distress. Radon can be tested and measured (in picocuries per liter (pCi/L) of air) and there are estimated risks to health from the exposure depending on the concentration. DHSS in conjunction with EPA recommends that if the concentration of radon is 4 pCi/L or greater, then remediation should be done to lower risks. Smoking in conjunction with radon exposure greatly increases the risk of cancer.

What Can I Do?

The Missouri Department of Health and Senior Services offers FREE Radon Testing kits by request.  We have paper copies of the request here at the health center, or you can go online and order a kit here: https://health.mo.gov/living/environment/radon/testkit.php  or visit www.health.mo.gov and search “Radon Testing Kit.”   The test kit comes with instructions, but if you need help, please feel free to contact me at 660-646-5506.

If you find you have a radon problem, and want to fix the problem; Missouri Department of Health and Senior Services (DHSS) has a list of mitigation specialists qualified to install mitigation systems in your home. The cost can range from $500 to $2500 depending on the size and construction of the home. Lists of mitigation specialists can also be obtained from the National Radon Safety Board (NSRB) and National Environmental Health Association (NEHA) websites. They are www.nrsb.org and www.radongas.org respectively.


Sources: US Environmental Protection Agency, American Lung Association, Missouri Department of Health

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