A Home Owner’s Guide to Radon

Radon—a naturally occurring radioactive gas produced by the breakdown of the uranium in soil, rocks, and water—is present in all houses. Left unmitigated, high levels of radon can present significant health risks, so testing is an important element of responsible home ownership.

Long-term testing, advocated by Health Canada, provides the most accurate measure of indoor radon. It is inexpensive and can be accomplished by the homeowner.

Modifying a house to lower radon levels is relatively inexpensive, with costs being comparable to other home maintenance expenses, and there are a variety of options available. A qualified radon specialist can help homeowners make an informed decision.

What is radon?
Radon is a radioactive gas that is odourless, colourless, and tasteless. It is produced by the breakdown of uranium found in sediment (soil), rocks, and water. When radon is released into the atmosphere it gets diluted and poses negligible risk to human healthi. However, if radon accumulates inside a home, it can pose a serious health risk.

Radon is found throughout Canada, but concentrations differ depending on the composition of the bedrock or sediment.

Read all the details in the Home Owner’s Guide to Radon