"Where is radon found" has about 140 searches per month. The site ranks around 66^th place. Radon forms in the soil when uranium decays. In a house, it is measured in the air of the lowest occupied floor.<\/p>

Where it enters<\/h2>

Slab, cracks, joints, sump pit, plumbing penetrations. It is not "in the furniture" nor primarily attached to the ceiling. The living area on the lowest level is the testing location. The installation method is explained in how to do a test<\/a>.<\/p>

Well water is another matter<\/h2>

A well can contain radon. Gaz Radon Québec's mitigation system treats the air under the slab, not drinking water. If your water comes from a well, measuring the indoor air remains the first step to determine if rooms exceed 200 Bq\/m³.<\/p>

The 91-day test<\/a> costs $74.72 taxes included. Above the threshold, the system<\/a> draws gas from under the slab and vents it outside.<\/p>