Understanding Radon: The "Silent" Risk
Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in soil and rock. Because it is colorless, odorless, and tasteless, it can accumulate to dangerous levels inside homes and commercial buildings without anyone knowing.
In BC, radon is the second leading cause of lung cancer after smoking. When radon gas escapes the ground into the open air, it is diluted and harmless; however, when it enters a confined space through foundation cracks, sumps, or floor drains, it can become a serious health hazard.
Professional Radon Testing
Because radon levels fluctuate based on the season, weather, and ventilation habits, "one-day" tests are rarely accurate. We provide industry-standard testing protocols.
- Long-Term Testing (Recommended): The gold standard for radon measurement. We place a small detector in the lowest occupied level of your home for 91 days to 1 year (typically during the winter heating season). This provides a true average of your annual exposure.
- Short-Term Testing: Used primarily during real estate transactions or as a preliminary screening. These tests last 2 to 7 days and provide a "snapshot" of current levels.
When to Install a Mitigation System
The decision to mitigate is based on the concentration of radon measured in Becquerels per cubic metre (Bq/m³). Health Canada has established a guideline of 200 Bq/m³.
- You SHOULD Mitigate If:
- Results are above 200 Bq/m³: Health Canada recommends taking action to reduce levels.
- High Occupancy: If the high-radon area is a primary living space, a bedroom, or a basement suite where someone spends significant time.
- Proactive Safety: Many homeowners choose to mitigate even if levels are between 100 and 200 Bq/m³, as there is no "perfectly safe" level of radiation.
- You MAY NOT Need to Mitigate If:
- Results are below 100 Bq/m³: These levels are considered low, and the cost of a full mitigation system usually outweighs the marginal health benefit.
- Unoccupied Areas: If high levels are found only in a crawlspace or a detached garage that is never occupied, mitigation may not be necessary (though sealing the area is still recommended).
- Single Short-Term Test: Never install an expensive mitigation system based on one short-term test during a storm or a specific weather event. Always confirm with a follow-up test to ensure the high reading wasn't a temporary spike.
- Single Short-Term Test:
- Never install an expensive mitigation system based on one short-term test.
- Always confirm with a follow-up test to ensure the high reading wasn't a temporary spike.
Why Choose Compass Environmental?
We provide unbiased testing. Because we specialize in assessment and monitoring rather than just selling mitigation hardware, our goal is to provide you with the most accurate data possible. We help you determine if a system is actually necessary, saving you from unnecessary expenses while ensuring your family breathes clean, safe air.