Deadly radon gas increasingly detected in Canadian homes with Calgary area among most impacted

The number of Canadian homes with dangerous levels of cancer-causing radon gas has more than doubled in the past 12 years with some Calgary-area residents among the most at-risk.

Those are the findings of a study conducted by scientists including a University of Calgary researcher who say 18 per cent of households in the country require some kind of mitigation compared to 7 per cent found in a similar study in 2012.