What is Radon?

Radon is a radioactive gas that occurs naturally when the uranium in soil and rock breaks down. It is invisible, odourless and tasteless. When radon is released from the ground into the outdoor air, it is diluted and is not a concern. However, in enclosed spaces like homes, it can accumulate to high levels. 

High radon levels can be a risk to the health of you and your family. 

Radon gas moves through the ground and escapes outside or into buildings. It can enter a home any place it finds an opening where the house is in contact with the ground: cracks in foundation walls and in floor slabs, construction joints, gaps around service pipes, support posts, window casements, floor drains, sumps or cavities inside walls. 

All homes in Canada have Radon gas in them but concentrations differ greatly across the country. 

As illustrated below, the percentage of homes with high Radon levels in Winnipeg and the surrounding areas are some of the highest in North America.

Research surveys from CAREX Canada indicate that over 24% of homes in the province have dangerously high levels of Radon and Manitoba is classified by Health Canada as a high-risk zone for elevated indoor radon levels. 

Several factors contribute to this including our geological composition and climate. Manitoba's bedrock and soil types naturally contain uranium and cold winters result in homes being sealed tightly for extended periods, increased indoor Radon concentrations.

Levels will even vary from one house to another, even if they are similar designs and next door to each other. No matter the age or type of construction, the only way to be sure of the Radon level in your home is to test!