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
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.