Radon in BC and what it can mean for your family

November is Lung Health Awareness Month, and this month, we are raising awareness about a particular problem concerning radon gas. I wanted to discuss radon and hopefully provide homeowners with crucial information about radon and its significance in our lives.

Radon is a naturally occurring radioactive gas resulting from the breakdown of uranium in the earth's crust, which then seeps into the soil. It can infiltrate homes through various pathways, including the soil, pipes, windows, sump pumps, unfinished floors, crawl spaces, foundation wall cracks, and floors. Despite its presence, radon remains invisible, odourless, and tasteless.

Determining the radon levels in a home is only possible through individual testing, as they can vary significantly from one residence to another. Several factors influence the amount of radon present in a home, such as the geological characteristics of the area, home construction, and weather conditions. In colder months, when homes are sealed and heating systems are in use, radon can become concentrated and pose health risks.

So, why is radon a concern, and why should you be vigilant about it? Long-term exposure to radon can be hazardous, even if its immediate effects may go unnoticed. Radon is a carcinogen known to cause cancer and ranks as the second leading cause of lung cancer in North America, following smoking. Even if you've never smoked, your risk of developing lung cancer can increase if radon levels in your home are elevated.
Hence, it is crucial to test your home for radon and take remedial actions if the levels are excessive. Radon testing is a straightforward and cost-effective process. Certified radon tests can be obtained from stores or online and can be performed by homeowners themselves. However, it is advisable to hire a qualified professional, such as a home inspector certified by the Canadian National Radon Proficiency Program (C-NRPP), to ensure accurate results.

Even if your new home includes a radon reduction system in its construction, you can further reduce radon levels by utilizing a Heat Recovery Ventilator (HRV). Many provinces, including Ontario, mandate HRV installations in new builds. An HRV facilitates the exchange of indoor and outdoor air, conserves energy, reduces heating and cooling expenses, and can lower radon concentrations by approximately 50%, according to CAREX Canada.

For an effective radon reduction solution, consider installing a radon monitor alongside your HRV. The monitor continuously measures radon peaks, activating the HRV at high-speed override when elevated levels are detected. An Energy Recovery Ventilator (ERV) can also be a viable alternative, offering year-round moisture management for your home. ERVs provide superior ventilation and humidity control by drawing fresh outdoor air inside and expelling stale indoor air through a high-efficiency furnace.

To identify the most suitable method for your home, consult a radon mitigation specialist. It is essential to dispel the misconception that new homes are exempt from radon exposure. In reality, radon can be present in every home and may even be more concentrated in newer homes due to tighter construction standards aimed at energy efficiency. Radon can also be found in multi-story and high-rise buildings, particularly in stairwells and elevator shafts, depending on the ventilation system. 

Radon is a silent but potentially deadly threat that can infiltrate your home without you ever knowing. Fortunately, radon testing today is easy and becoming more available to homeowners in BC every day.