Radon is an invisible, odourless gas that can raise long-term health risks inside homes. If you rent in Newfoundland and Labrador, understanding how radon testing works, what landlords are expected to do, and what steps tenants can take helps protect your household. This article explains common radon test types, the Health Canada action level, how to document and share results, and when to request remediation or file an application with the province's tenancy body. It uses clear, practical steps for renters who need guidance on safety, repairs and communication with landlords, and points to official forms and resources you can use.
What is radon and why it matters
Radon is a naturally occurring radioactive gas that can accumulate indoors. Health Canada recommends taking action when long-term indoor radon concentrations exceed 200 Bq/m3. Long-term exposure, measured over winter months or a 91-day period, is the meaningful metric for health risk and landlord/tenant discussions[1].
Landlord duties and tenant rights in Newfoundland and Labrador
Landlords are generally responsible for maintaining a safe and habitable rental unit, which includes addressing environmental hazards that affect health and safety. That means if a long-term radon test shows levels above Health Canada guidance, the landlord should arrange mitigation or repairs to reduce radon intrusion. Tenants should notify landlords in writing and keep copies of test results and communications. For province-specific tenancy rules and dispute processes see Tenant Rights and Landlord Rights in Newfoundland and Labrador[3].
How radon testing works
Types of tests
- Short-term tests (2–7 days) are useful for quick screening but are not definitive for annual exposure.
- Long-term tests (90+ days, ideally including winter) estimate average exposure and guide remediation decisions.
- Alpha-track detectors and continuous monitors are common; always follow the lab or manufacturer placement instructions and lab submission process.
Where to place tests
Place tests in the lowest livable level where people spend time, following the device directions. Avoid kitchens and high-humidity rooms. Photograph the device location and save the receipt and lab form so results are traceable.
If test results are high: steps for tenants
When a long-term result is above 200 Bq/m3, tell your landlord in writing, attach the test report, and request a mitigation plan and timeline. If the landlord agrees, confirm remediation details in writing and keep copies of invoices, contractor reports and post-mitigation tests. If the landlord does not act, you may file an application with the provincial tenancy body to request an order for repairs or remediation.
Official forms and how tenants use them
- Application to the Residential Tenancies Board / Tribunal (use when a landlord won't remediate): name your issue, attach radon test results and state the remedy you want — for example, a mitigation plan and timeline.
- Written notice to landlord (no standard form required in some cases): provide the test results, request remediation, and set a reasonable deadline in writing so you have dated evidence.
Practical example
A tenant receives a 120-day test reading of 260 Bq/m3. They photograph the device, email the PDF result to the landlord with a short written request for mitigation within 30 days, and keep the sent email and proof of delivery. If there is no action, the tenant completes the province's application to the tenancy board and attaches all documents and receipts[3].
How to communicate and preserve evidence
- Send written notices by email and, if available, by tracked mail so you can prove delivery.
- Keep photos, receipts, test kit chain-of-custody and any contractor or post-remediation test reports.
- File an application with the tenancy body if the landlord does not respond or refuses remediation; attach all supporting documents.
FAQ
- How long should a radon test run to be reliable?
- Use a long-term test of at least 90 days (ideally covering winter months); short tests are not reliable for annual exposure estimates.
- Who pays for testing and mitigation?
- Testing is often inexpensive and tenants can arrange initial tests, but landlords are typically responsible for mitigation and repairs to maintain a safe unit once high levels are confirmed.
- What if my landlord disagrees with the test results?
- Ask for a joint re-test or an independent long-term test, document communications, and consider filing an application with the Residential Tenancies Board if remediation is not agreed upon.
How-To
- Order or buy a long-term radon test kit and keep the lab form.
- Place the test kit in a main living area for at least 91 days according to instructions.
- Document placement with photos and keep the test receipt and chain-of-custody paperwork.
- Serve a written notice to your landlord attaching the results and request a mitigation plan if readings exceed 200 Bq/m3.
- If the landlord does not arrange remediation, file an application with the Residential Tenancies Board and include all evidence and communications.
Key Takeaways
- Long-term radon testing (90+ days) is the standard for determining health risk.
- Landlords should arrange remediation when results exceed Health Canada guidance.
- Document every step, give written notices, and use the tenancy board if needed.
Help and Support / Resources
- Health Canada: Radon information and guidance
- Government of Newfoundland and Labrador: housing and health resources
- Service NL: Residential tenancy information and forms
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