Homes at or above the guideline
21.5
%About 1 in 5 properties
Share of properties in the Thérèse-De Blainville census division, which includes Rosemere, with radon at or above 200 Bq/m³ in the 2024 Cross-Canada Radon Survey. The survey reports no figure for Rosemere itself.
- Date
- 2024-10-01
- Sample
- 135 long-term readings
