Does Radon Gas Rise

Radon can rise to dangerous levels when it becomes trapped inside your home or other buildings, often collecting in lower floors. Experts recommend testing for radon during the colder months because radon levels are historically found to be higher.

Does radon gas fall or rise?

Radon gas is approximately 7.5 times heavier than air. … When radon gas is discharged via a radon mitigation system above the roof, the radon concentration falls off dramatically with distance from the point of discharge.

Does radon gas rise from basement?

Because your basement is below ground, it’s the first room that radon gas will reach as it rises from the soil to the air. Therefore, the concentration of radon gas in your basement will likely be higher than in any other room of your house.