Radon in Apartments: Are Renters at Risk?

Radon is often thought of as a problem for homeowners — but renters in apartments are not immune. If you live in an apartment, especially on a lower floor, radon could be a concern worth investigating.

Can Apartments Have Radon?

Yes. Radon can accumulate in any enclosed space, including apartments. The risk depends primarily on which floor you live on and the building's construction and ventilation.

• Ground floor and basement apartments — Highest risk. Direct contact with soil means radon can seep in through the floor and walls just as it does in a house.
• Second and third floor apartments — Moderate risk. Radon from lower floors can migrate upward through stairwells, elevator shafts, and HVAC systems.
• Higher floors — Lower risk, but not zero. Radon can still be present, particularly in poorly ventilated buildings.

Why Apartment Radon Is Often Overlooked

• Renters assume radon is the landlord's responsibility — and often it is, but many landlords never test.
• Apartment buildings are less frequently tested than single-family homes.
• Renters may not be aware they have the right to request radon testing.

What Renters Can Do

• Ask your landlord if the building has been tested for radon and request the results.
• Test your own unit using a continuous radon monitor — you don't need landlord permission to place a detector in your own living space.
• Know your rights — some states require landlords to disclose radon test results or conduct testing before renting.
• Improve ventilation — open windows when possible and use fans to increase air circulation.

What Landlords Should Know

Building owners have a responsibility to provide safe living environments. Testing for radon and mitigating elevated levels protects tenants and reduces liability. Sub-slab depressurization systems can be installed in multi-unit buildings just as effectively as in single-family homes.

Know Your Radon Level Wherever You Live

The GZAIR Radon Detector is compact, portable, and perfect for apartment use. Get real-time radon readings in your unit — no installation required.

→ Shop GZAIR Radon Detectors