Radon in Gaspésie: the 2012 survey reports the health region
The peninsula is not one reading. Test the occupied room for at least 91 days in the heating season.
Oct 25, 2026
Scientific Articles
108 articles
Radon by province: the 2012 survey, raw percentages side by side
New Brunswick, Manitoba, Saskatchewan, Nova Scotia and Yukon sit higher in that table. Quebec’s raw average was 10.1%. A province is not ...
Oct 25, 2026
How often to retest for radon
After a system, after major renovations, and if the way you use the lowest level changes. A result from before the new windows no longer ...
Oct 25, 2026
Radon rough-in in a new home: a capped pipe is not a result
Gravel, a membrane and a pipe stub let a fan be added later. Until the fan runs and a 91-day test is done, nobody knows the bedroom.
Oct 25, 2026
Radon at work: the home test does not cover the office
A basement office occupied more than four hours a day is its own building. The bedroom result does not answer for it, and the reverse is ...
Oct 25, 2026
Radon and resale value: a system with a report is a fact you can show
A number above 200 is disclosed with the duration and the room. A working system plus a post-mitigation test answers the next buyer bette...
Oct 25, 2026
A radon result above 200 Bq/m³: what happens next
Between 200 and 600, Health Canada’s timeline is two years. Above 600, one year. The usual fix is a fan that pulls under the slab and exh...
Oct 25, 2026
When to test for radon: October to April, at least 91 days
Health Canada wants at least three months, ideally in the heating season. A summer test with open windows reads low. The detector stays i...
Oct 25, 2026
Where to place a radon detector
The lowest lived-in level, in a room used more than four hours a day, 0.8 to 2 m above the floor, away from windows, vents and the sump. ...
Oct 25, 2026
Air exchangers and radon: dilution is not suction under the slab
A heat-recovery ventilator can lower the level somewhat by bringing outdoor air in. It does not pull soil gas out. Leave it on its usual ...
Oct 25, 2026
Radon in the basement: test it when people use the room
If someone spends more than four hours a day there, that is the Health Canada location. A storage corner and the furnace room are not. Th...
Oct 25, 2026
Radon in a new home: tight construction can hold the gas in
A recent house is not exempt. Fewer air leaks means the radon that enters stays longer. Test the first heating season, in the lowest room...
Oct 25, 2026
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