Radon in Edmonton (2026): What the Data Shows, Why It's High, and What Edmonton Homeowners Should Do

Flat-vector map of Canada with a coral red pin marking Edmonton, Alberta, alongside a circular badge showing 17% — Edmonton Metro share (1 in 6) of homes above the Health Canada radon guideline

A note before you read. This article is general health and home-testing information for Edmonton homeowners, drawn from Health Canada, Alberta Health Services, Alberta Lung Association, the Real Estate Council of Alberta, and the Canadian Cancer Society. It is not medical advice. See full disclaimers at the bottom.

If you live in Edmonton and you've heard that Alberta has a serious radon problem, the data confirms it. Per the Evict Radon National Study, roughly 1 in 6 Edmonton Metro Area homes test above the Health Canada 200 Bq/m³ guideline, and the average Edmonton home tests at about 106 Bq/m³ — well above the national average. Some Alberta communities have tested with more than 50% of homes above the guideline.

The good news: Alberta has a strong C-NRPP-certified mitigation industry, the Canadian Lung Association's "Lungs Matter" program offers up to $1,500 toward radon mitigation costs, and a long-term radon test kit costs about $89 all-in.

This guide walks through the Edmonton and Alberta data, explains why Edmonton residential radon is elevated, and lays out the practical step-by-step from "I want to know" to "result in hand."

TL;DR for Edmonton homeowners

  • About 1 in 6 Edmonton Metro Area homes test above the Health Canada 200 Bq/m³ guideline (Evict Radon National Study).
  • The average Edmonton home tests at approximately 106 Bq/m³ — above the national average from the 2012 Cross-Canada Survey.
  • Some Alberta communities have documented well over 50% of homes above the guideline; rates vary substantially even between adjacent neighbourhoods.
  • The only way to know your home's level is to test it. Long-term test, 91+ days, ideally during the heating season. Order a $89 long-term radon test kit →
  • Mitigation works. A C-NRPP-certified mitigation system reduces radon by up to 95% at a typical Alberta cost of $2,500–$4,500, often partially offset by the Canadian Lung Association's "Lungs Matter" grant (up to $1,500).

Table of contents

  1. What the published Edmonton radon data actually shows
  2. Why Edmonton radon is elevated — geology, climate, and construction
  3. What to do as an Edmonton homeowner
  4. Local Edmonton and Alberta resources
  5. FAQ — Edmonton-specific questions
  6. Disclaimers
  7. Sources

What the published Edmonton radon data actually shows

The Edmonton-area radon profile is well-documented through Health Canada's national survey, the Evict Radon National Study (U of Calgary–led), Alberta Health Services testing programs, and community-level testing initiatives:

  • Edmonton Metro Area: approximately 1 in 6 homes (≈17%) test above the Health Canada 200 Bq/m³ guideline, with an average residential level of about 106 Bq/m³ (Evict Radon National Study).
  • Alberta provincial average (2012 Cross-Canada Survey): about 7% of homes above the guideline, with significant regional variation.
  • Subsequent community-level testing in Alberta has found pockets where over 50% of homes exceed the guideline.
  • Take Action on Radon's "100 Radon Test Kit Challenge" Edmonton 2024 community report found about 28% of tested Edmonton homes under 100 Bq/m³ — meaning the majority were at or above the WHO recommended action level of 100 Bq/m³.

Sources: Evict Radon National Study; Take Action on Radon — Alberta; Health Canada Cross-Canada Survey

The takeaway isn't that every Edmonton home has a problem — most Edmonton homes likely test below the 200 Bq/m³ guideline. The takeaway is that roughly one in six Edmonton homes has radon levels Health Canada considers worth acting on, and the only way to know your specific home's level is a long-term radon test.

Order a $89 long-term radon test kit →

Why Edmonton radon is elevated — geology, climate, and construction

Three independent factors stack to produce Edmonton's elevated residential radon:

1. Geology. Edmonton sits on glacial till deposits in central Alberta, with bedrock containing varying levels of uranium. The natural breakdown of uranium in soil and rock produces radon gas. Alberta's geology — including the area around Edmonton — is in the higher range for North American residential radon.

2. Climate. Edmonton has one of the longest and coldest heating seasons of any major Canadian city — typically late September through early May, with extreme winter temperatures regularly reaching –30°C and below. Homes are sealed against the cold, furnaces and HVAC systems run continuously, and the natural "stack effect" (warm air rising through the home creating negative pressure at the lowest level) actively pulls soil gas into basements. Outdoor air dilution that would lower indoor radon during summer is significantly reduced for 7+ months.

3. Building construction. Edmonton's housing stock is dominated by full-basement single-family homes, often with finished basement living areas. Modern energy-efficient construction emphasizes tighter building envelopes — great for energy bills, but it also reduces uncontrolled air exchange that would otherwise dilute indoor radon.

The combination — uranium-bearing prairie geology + an exceptionally long heating season + finished-basement housing stock with energy-efficient envelopes — is why Edmonton consistently shows elevated residential radon in published Canadian data.

What to do as an Edmonton homeowner

The action item is straightforward. Step-by-step:

Step 1: Test (long-term, 91+ days). Health Canada's recommended test for a homeowner mitigation decision is a long-term alpha-track lab test, deployed for at least 91 days during the heating season (October–April in Edmonton), in the lowest lived-in level of your home. The test costs $89 all-in with RadonTest.ca — kit, tracked outbound, prepaid tracked Canada Post return label, and analysis at Lex Scientific in Guelph, Ontario (a C-NRPP-listed Canadian lab).

Step 2: Read your result. Below 200 Bq/m³, no mitigation is required (Health Canada recommends retesting every 5 years). Above 200 Bq/m³, mitigation is recommended. See our How to Read Your Radon Test Results and What to Do If Your Radon Level Is Above 200 Bq/m³ guides.

Step 3: Mitigate, if needed. A C-NRPP-certified mitigation contractor installs a sub-slab depressurization system at a typical Alberta cost of $2,500–$4,500. These systems typically reduce radon by up to 95% (Health Canada cites reductions of more than 80%; CARST cites up to 95%). Find an Edmonton-area C-NRPP-certified mitigator via the C-NRPP Find a Professional tool.

Step 4: Apply for the Lungs Matter grant. The Canadian Lung Association's Lungs Matter program offers up to $1,500 toward radon mitigation for eligible Canadian homeowners with a long-term test result above 200 Bq/m³ and a quote from a C-NRPP-certified mitigator.

Step 5: Verify. Once mitigation is complete, run an independent post-mitigation test — ideally from a provider not affiliated with the mitigation company — to confirm levels are below 200 Bq/m³ and stay that way.

Order your Edmonton kit — $89 →

Local Edmonton and Alberta resources

  • Alberta Lung Association — Radon program (ablung.ca/lung-health/radon) — provincial non-profit's radon resources
  • MyHealth Alberta — Radon information (myhealth.alberta.ca) — Alberta Health Services public-health radon page
  • Real Estate Council of Alberta (RECA) — Alberta real estate licensees must disclose known radon levels above 200 Bq/m³ as a "material latent defect" (RECA Property Considerations)
  • Take Action on Radon — Alberta (takeactiononradon.ca/provinces/alberta)
  • Evict Radon National Study (evictradon.org) — at-cost long-term test kits in exchange for de-identified data participation
  • Canadian Lung Association — Lungs Matter mitigation grant (lung.ca) — up to $1,500 for eligible Canadians
  • C-NRPP Find a Certified Professional (c-nrpp.ca) — Edmonton-area certified measurement and mitigation professionals

Note on Alberta building code. Alberta uses the National Building Code 2023 Alberta Edition (in force May 1, 2024), which requires a Level 1 radon "rough-in" (capped vent pipe through the slab + soil gas barrier + sealed perimeter) in new construction. The rough-in is infrastructure that makes future mitigation easier and cheaper. See our Canadian Building Codes and Radon guide.

Note on Alberta real estate disclosure. RECA states that radon levels above 200 Bq/m³ constitute a material latent defect requiring disclosure unless mitigation has been installed. See our Real Estate Radon Guide.

FAQ — Edmonton-specific questions

How common is high radon in Edmonton? Per the Evict Radon National Study, about 1 in 6 Edmonton Metro Area homes test above the Health Canada 200 Bq/m³ guideline. Some Alberta communities have documented over 50% of homes above the guideline. The only way to know your home's specific level is to test it.

Why is Edmonton higher than the Canadian average? Three factors combine: uranium-bearing prairie geology, an exceptionally long and cold heating season that seals homes for most of the year, and full-basement housing stock with energy-efficient envelopes that retain indoor radon.

Are some Edmonton neighbourhoods worse than others? Radon levels vary substantially even between adjacent homes. Neighbourhood-level statistics don't reliably substitute for a home-specific test.

Does my newer Edmonton home have a radon rough-in? If your home was built under the National Building Code 2023 Alberta Edition (in force May 2024) or earlier Alberta adoption of NBC 2010 radon provisions, it should have a capped vent pipe stub through the basement slab. The rough-in is infrastructure for future mitigation, not active reduction. If a long-term test shows elevated radon, the rough-in makes the mitigation system easier and cheaper to activate.

How much does radon mitigation cost in Edmonton? Typical Alberta residential mitigation costs are $2,500–$4,500 for a sub-slab depressurization system installed by a C-NRPP-certified contractor. The Canadian Lung Association's Lungs Matter program may offset up to $1,500.

Where can I buy a long-term radon test kit in Edmonton? You can order a RadonTest.ca $89 all-in long-term kit online and receive it within a few business days anywhere in the Edmonton area — kit + tracked outbound + prepaid tracked Canada Post return label + analysis at a C-NRPP-listed Canadian lab. The Alberta Lung Association also offers radon information and resources at ablung.ca.

Do I have to disclose elevated radon when I sell my Edmonton home? Per the Real Estate Council of Alberta, radon levels above 200 Bq/m³ are a material latent defect that must be disclosed to prospective buyers, unless mitigation has been installed and the home brought below the guideline. (RECA Property Considerations) See our full Real Estate Radon Guide.

When is the best time of year to test in Edmonton? The heating season — October through April — produces the highest indoor radon levels and is the recommended testing window per Health Canada. A long-term test (91+ days) started in early October gives you a strong heating-season reading.

Can I get the Lungs Matter $1,500 grant in Edmonton? Yes, eligible Albertans can apply. You'll need a long-term test result (≥91 days) from a C-NRPP-certified test that shows your home above 200 Bq/m³, plus a quote from a C-NRPP-certified mitigator. Verify current eligibility at lung.ca.

Where can I find a C-NRPP-certified radon mitigator in Edmonton? The C-NRPP Find a Certified Professional directory lists certified measurement and mitigation professionals by area. Edmonton has a substantial certified-mitigator population.

Test your Edmonton home — $89, all in

About 1 in 6 Edmonton-area homes test above the Health Canada radon guideline, and the action item is the same one any Canadian homeowner should take: a long-term radon test that produces a real lab result.

RadonTest.ca — $89 all-in (plus applicable tax). Long-term 91-day alpha-track test kit. C-NRPP-listed device. Analysed at Lex Scientific in Guelph, Ontario — Canadian lab, C-NRPP listed, ISO/IEC 17025 accredited by CALA. Tracked Canadian shipping both ways. Written lab report PDF delivered to your inbox.

Order — $89 →

Important disclaimers

Not medical, legal, or warranty advice. This article provides general health and home-testing information for Edmonton homeowners drawn from publicly available Health Canada, Alberta Health Services, Alberta Lung Association, RECA, Canadian Cancer Society, and Evict Radon National Study materials. It is not medical advice, legal advice, or warranty advice. Consult a qualified professional for specific decisions.

Statistics and citations. The 1-in-6 Edmonton figure and 106 Bq/m³ average are from the Evict Radon National Study. Alberta provincial figures are from Health Canada's 2012 Cross-Canada Survey of Radon Concentrations in Homes. National figures are from Health Canada's Radon: What You Need to Know fact sheet (2025). Health Canada and Evict Radon update their published figures periodically; figures cited reflect the sources as of May 2026.

Local Edmonton data. Statements about Edmonton radon levels reflect published research and government materials. Radon levels vary substantially even between adjacent homes; community-level statistics do not substitute for a home-specific long-term test.

Mitigation cost. The $2,500–$4,500 mitigation cost range is a typical Alberta residential figure. Actual costs vary by home, foundation, complexity, and contractor.

Lungs Matter grant. Eligibility, grant amounts, and program availability for the Canadian Lung Association's Lungs Matter program may change. Verify directly at lung.ca before relying on the program.

Real estate disclosure. Statements about Alberta real estate radon disclosure reflect RECA's published Property Considerations guidance. Specific obligations for any individual transaction depend on the facts; consult an Alberta real estate lawyer.

No diagnosis or treatment claims. RadonTest.ca sells radon test kits. We do not diagnose, treat, or prevent disease.

No warranty as to completeness. RadonTest.ca makes no warranty as to the completeness or accuracy of the information herein and accepts no liability for decisions made in reliance on this article.

Sources & further reading

Edmonton- and Alberta-specific

Health Canada / national

National associations and grants

Related RadonTest.ca articles