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Test your home for radon – here’s how

Radon levels in most homes should be reduced to as low as possible. The only way to know how much radon is in your home is to test it.

The Canadian Cancer Society recommends that Canadians test their homes for radon and take action to reduce high levels.

To test your home for radon, you can purchase a test kit at some hardware stores or online from several organizations that are working to reduce radon. You can also hire a certified professional to perform a test for you. Find out more about how to test for radon in your home.

Health Canada’s radon action guideline is 200 Bcq/m3, but other jurisdictions have set different limits. The World Health Organization (WHO) recommends a limit of 100 to 300 Bcq/m3 and the United States has a limit of 148 Bcq/m3.

If the level of radon is above 200 Bcq/m3, you should work with a C-NRPP certified professional to lower the levels in your home. Even if the radon levels are below 200 Bcq/m3, you may still want to try to get them lower.


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Take Action

The Canadian Cancer Society believes all Ontarians have the right to know if they are being exposed to cancer-causing substances so they can make informed decisions affecting about their health. We recommend that the Government of Ontario adopts the National Building Code guidelines regarding radon mitigation into Ontario’s Building Code and conduct a public education program on radon.

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