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When Radon is released from the ground into the outdoor air, it is diluted and not a concern. However, in enclosed spaces like homes, it can accumulate to high levels which can be a risk to the health of you and your family.

The air pressure inside your home is lower than the soil surrounding the foundation. This difference draws air and other gases, including radon, from the soil into your home.  Radon can enter a home any place it finds an opening, cracks in foundations, construction joints, gaps around service pipes, support posts, window casements, floor drains, sumps or cavities inside walls.

 

HOW DOES RADON GET INTO YOUR HOME? 

 RADON LEVELS IN CANADA

Radon is found across Canada as it occurs naturally in our soil. Concentrations differ greatly,however are usually higher in areas where there is a higher amount of uranium in underlying rock and soil.  Radon is found in almost every home, however concentration levels will vary from one house to another, even if the homes are simular or next door to each other.  It is expected that only a small percentage of homes will have radon levels above the guidelines but the ONLY way to be sure of the radon level in your home is to TEST.

 

CANADIAN GUIDELINE

The current Canadian guideline for radon in indoor air for dwellings is 200 Becquerels per cubic metre (200 Bq/m3).  This was recently reduced from 800 Bq/m3 based on new information about potential health risks.  A Becquerel means one radioactive disintegration per second. 

 

The chart below illustrates that the risk for a non-smoker at 800 Bq/m3 is higher than for all common accidental deaths (motor vehicle accidents, drownings, falls, fire etc) comdined. We take precautions against accidental deaths by putting on our seatbelts, wearing lifejackets or ensuring that our smoke detectors are working - we should also be testing our homes for Radon!

TEST YOUR HOME

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