Is Your Area at Elevated Risk for Radon?
Enter the first three characters of your Canadian postal code to see what Health Canada's radon testing data reveals about your area.
Lung cancer deaths from radon annually in Canada
of Canadian homes above the 200 Bq/m³ guideline
reduction possible with professional mitigation
Why postal code matters
Radon comes from uranium in the ground beneath your home. Geology varies by region — which means some neighbourhoods have significantly higher radon potential than others. Saskatchewan, Manitoba, New Brunswick, and the Yukon have some of the highest levels in Canada, but elevated readings have been found in every province and territory.
About this tool
This tool uses data from Health Canada's Cross-Canada Survey of Radon Concentrations, which tested 13,567 homes across Canada. It shows area-level patterns by Forward Sortation Area (the first 3 characters of your postal code) — but the only way to know your home's actual radon level is to test.
Source: Health Canada Cross-Canada Survey of Radon Concentrations in Homes (2009–2011). Open Government Licence — Canada. This tool is for informational purposes only and does not replace professional radon testing. The Canadian radon guideline is 200 Bq/m³.