A new Canadian study shows that radon exposure is on the rise. The study, led by Dr. Aaron Goodarzi, a professor of biochemistry and molecular biology at the University of Calgary’s Cumming School of Medicine, found that almost one in five homes in Canada has radon levels above the Canadian radon guideline of 200 Becquerels per cubic metre (Bq/m³).
In the Interior of B.C., it’s one in three.
Radon is an invisible, odourless, colourless radioactive gas formed by the natural breakdown of uranium found in soil and rocks. It’s the leading cause of lung cancer in non-smokers, and the second leading cause of lung cancer, after smoking.
There is no area in Canada that’s radon-free, and the B.C. Interior is known to have higher levels of radon in part due to our geology and soil. No level of radon is considered completely risk-free or safe.
The only way to know how much radon is in your home is to test. Testing is simple:
When it comes to radon testing, you have a couple of options: alpha track detectors or electronic monitors.
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Alpha track detectors for long-term measurement are sold by the BC Lung Foundation, and are the most commonly used technique for radon measurement. (Photo credit: BC Lung Foundation) |
Continuous electronic monitors can be more expensive but don’t require lab analysis. Some provide apps so you can access your readings in real time. |
We recommend these options if you’re interested in an alpha track radon detector.
Use caution when purchasing a detector elsewhere: some kits require an additional lab analysis fee (in U.S. dollars) and can take many months for a result.
Free radon devices are available for one-time use or on loan in select areas in the Interior.
To participate, homeowners must complete a sign-up form, and be able to pick up and drop off their detector in person. Detectors are available first come, first serve until supplies run out.
Free loaner electronic monitors like this one are available through BC Lung’s Radon Detector Library Lending Program through the Okanagan, Kootenay and Thompson-Nicola Regional Library networks.
In our next article, we’ll talk about how you can lower your radon levels in your home.
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