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Learn about the health risks of radon and how to reduce patient exposures, based on Health Canada’s national radon awareness program.

What is radon?

Radon is an invisible radioactive gas that comes from the ground and is in every home in Canada. It’s the #1 cause of lung cancer in non-smokers. You can't smell, taste or see radon. But it's easy to test for and easy to reduce to safe levels.