Share of homes above guideline
% of homes at or above 200 Bq/m³
For reference: outdoor air averages about 15 Bq/m³ and the average North American
home about 50 Bq/m³. WHO reference level: 100. Health Canada guideline: 200 Bq/m³ — reduce
above it. Calgary-area homes average about 103.
These are area estimates, not your home. Radon varies house to house — the only way to know
your level is to test. ByeRadon Inc. · (403) 801-8989
Estimates from public data: 2024 Cross-Canada Survey of Radon (Evict Radon National Study & Health Canada) · Health Canada — Cross-Canada Survey of Radon Concentrations in Homes (2009–2011) · Health Canada — Radon and Thoron Data From Canadian Homes (2012–2013) · Statistics Canada — 2021 Census forward sortation area boundaries. No individual home results are shown.