Radon testing guides

Le radon est un gaz radioactif qui se forme dans le sol quand l’uranium se dégrade. Il entre par les fissures de la fondation et les joints des tuyaux. L’isolation et une maison étanche le retiennent à l’intérieur. Des années d’exposition causent le cancer du poumon, et ce gaz reste méconnu. Utilisez la recherche pour les mots que les gens cherchent : gaz radioactif, uranium, fondation, maison étanche, cancer du poumon, becquerels.

Radon in St. Catharines: Niagara was 2.0% of 100 homes

The Niagara region was 2.0% above 200, and that 2.0% was entirely above 600. Hamilton was 5.0%.

26 oct. 2026

Radon in Prince George: the Northern Interior was 12% of 208 homes

Northern Interior health area: 12.0% above 200 Bq/m³ on 208 homes. Vancouver was 1.2%. The region is much larger than the city.

26 oct. 2026

Radon in Victoria: South Vancouver Island was 1.8% of 55 homes

The island sample was small and low. The Kootenays, same province, were 29.3%. Victoria does not speak for Castlegar.

26 oct. 2026

Radon in Laval: 12.1% of 107 homes, higher than Montreal’s 6.9%

Laval and Montreal were separate rows in the 2012 survey. The river is not a shared result.

26 oct. 2026

Radon in Gatineau: the Outaouais region was 12.9% of 62 homes

Outaouais was 12.9% above 200 Bq/m³, with 4.8% above 600, on a short sample. Ottawa’s health unit was 6.2%.

26 oct. 2026

Radon in Sherbrooke: Estrie was 9.3% on only 54 homes

The Estrie sample was small: 9.3% of 54 homes above 200, none above 600. Sherbrooke does not get its own row.

26 oct. 2026

Radon in Quebec City: the Capitale-Nationale region was 8.8%

8.8% of 160 homes in the Capitale-Nationale region were above 200 Bq/m³, with 2.5% above 600. Gaspésie was 25.3%.

26 oct. 2026

Radon in Saint John, New Brunswick: region 2 tested at 10.9%

Health region 2 was 10.9% of 101 homes above 200. Moncton’s region was 19.8%. Region 6 was 40%.

26 oct. 2026

Radon in Moncton: New Brunswick health region 1 tested at 19.8%

Region 1 was 19.8% of 106 homes above 200 Bq/m³, with 3.8% above 600. The province’s raw figure was 24.8%.

26 oct. 2026

Radon in Mississauga: Peel’s 2012 sample was 0% of 89 homes

The Peel region, which includes Mississauga and Brampton, had no result above 200 in 89 homes. That sample is short, and it is not a cert...

26 oct. 2026

Radon in Waterloo: 4.0% of 101 homes in the 2012 sample

Waterloo region was 4.0% above 200. Guelph’s health unit, next door, was 10.9%.

26 oct. 2026

Radon in Sudbury: 5.1% of 97 homes in the 2012 sample

Sudbury and District was 5.1% above 200 Bq/m³. Thunder Bay, further west, was 12.0%.

26 oct. 2026

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