Radon is a naturally occurring radioactive gas formed by the breakdown of uranium in soil and rock. It's colourless, odourless, and completely undetectable without proper testing — which is exactly what makes it so dangerous.
When radon escapes from the ground into the open air, it disperses harmlessly. The problem occurs when it seeps into enclosed spaces — through cracks in foundations, gaps around pipes, floor drains, or porous concrete blocks — and accumulates to dangerous concentrations indoors.
Why is Radon so Harmful?
As radon decays, it releases tiny radioactive particles. When inhaled, these particles can damage the cells lining the lungs, significantly increasing the risk of lung cancer over time. Radon is the leading environmental cause of lung cancer in Canada, responsible for approximately 3,200 deaths per year — more than car accidents.
The risk is cumulative. The longer you're exposed to elevated radon levels, the greater your risk. This is why long-term radon testing — typically over 91 days — gives the most accurate picture of your actual exposure.
Who is at Risk?
Every home in Canada has some level of radon. The question is how much. Radon levels vary significantly from home to home, even on the same street. Factors that affect your home's radon level include:
- Soil and rock composition beneath the home
- Construction type — slab on grade, basement, or crawl space
- Cracks and openings in the foundation
- Home ventilation and air pressure dynamics
- Season — radon levels tend to be higher in winter when homes are sealed
Roughly 1 in 4 Canadian homes exceeds the recommended action level of 200 Bq/m³. Many homeowners don't know their home has a radon problem simply because they've never tested.
Radon in Windsor and Essex County
Windsor and Essex County sit in a region of Southwestern Ontario where the soil and geological conditions create conditions conducive to radon accumulation. Testing is particularly important for homes in our area — if you haven't tested, now is the time.
What Can You Do?
The good news is that radon is very treatable. If you've already tested your home and received elevated results, a professionally installed sub-slab depressurization system can reduce your indoor radon levels by up to 80%.
If you haven't tested yet, start there. And if you have elevated results and aren't sure what to do next — that's exactly what we're here for. Contact Home Radon Relief for a free, no-pressure consultation.