Radon map by postcode
Radon Map by Postal Code in Quebec
The radon map by postal code indicates if your area is at high risk. In Quebec, up to 1 in 5 homes exceeds 200 Bq/m³ — only a test in YOUR home confirms your actual level.
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91-day Test 4-day Test Radon Map Mitigation
Frequently Asked Questions
Is the radon map reliable for my home?
It indicates regional risk. Every building is unique — an on-site test is essential.
Where can I see the interactive map?
Consult our Quebec radon map article with postal code search.