Follow Us x
Radioactive Gas Levels Measured Accurately
Radon Gas Testing in Bismarck for homes where soil conditions create lung cancer risk
Radon forms when uranium in soil and rock decays, releasing radioactive gas that rises through the ground and seeps into buildings through foundation cracks, sump pits, and other openings. Because radon is invisible, odorless, and undetectable without testing, homes can accumulate dangerous concentrations without occupants realizing exposure is occurring. Radon is the leading cause of lung cancer among non-smokers, and the only way to know whether your home has elevated levels is through testing. A1 Home Inspections conducts radon testing that measures gas concentrations over a continuous period, providing accurate data on whether your home requires mitigation.
Testing involves placing a monitor in the lowest lived-in level of the home for a minimum duration, typically 48 hours for short-term testing. The device continuously samples air and records radon levels throughout the test period. Soil composition, foundation type, and ventilation patterns all affect radon entry and accumulation, so testing must occur under closed-house conditions to reflect worst-case concentrations you'd experience during winter when windows remain shut.
Arrange radon testing to determine whether gas levels in your home exceed the EPA action level of 4.0 picocuries per liter.
The testing process requires keeping exterior doors and windows closed for the duration of the test, aside from normal entry and exit. The monitor records radon levels continuously, capturing fluctuations caused by changing air pressure, temperature, and soil moisture. At the test's conclusion, the data is analyzed to produce an average radon concentration for the test period. This number determines whether your home's radon levels fall within acceptable ranges or require mitigation to reduce occupant exposure.
Once testing completes, you'll know your home's radon concentration and whether it exceeds thresholds that warrant corrective action. Results below 4.0 picocuries per liter are considered acceptable by EPA standards, though no radon level is entirely without risk. Levels at or above 4.0 picocuries per liter indicate mitigation is recommended to reduce concentrations and lower lung cancer risk for occupants. You're no longer uncertain about whether radon exposure is affecting your household.
Testing provides a snapshot of radon levels at the time of measurement but doesn't reduce concentrations. If results indicate elevated radon, you'll need to hire a mitigation specialist to install systems-typically sub-slab depressurization systems-that vent radon from beneath the foundation before it enters living spaces. Retesting after mitigation confirms the system is reducing radon to acceptable levels.
Questions Before Starting Your Project
Homeowners in Bismarck considering radon testing often need clarity on how the process works and what results mean for their property.
Why is radon testing important in Bismarck specifically?
Soil composition and geology in North Dakota create conditions where radon can accumulate in homes. Testing is the only method to determine whether your specific property has elevated radon levels, as concentrations vary dramatically between neighboring homes based on foundation construction and soil permeability.
How long does radon testing take?
Short-term tests run for a minimum of 48 hours under closed-house conditions. Long-term tests, which provide a more accurate average over seasonal variations, run for 90 days or more. Most home buyers and homeowners start with short-term testing to identify whether immediate mitigation is warranted.
What happens during the test period?
The testing device remains undisturbed in the lowest lived-in level of the home, typically a basement or first floor. You continue normal activities but keep windows and exterior doors closed except for brief entry and exit. Fans or air conditioning that exchange outdoor air should remain off during the test.
Can I test radon myself with a hardware store kit?
DIY kits are available, but professional testing uses calibrated continuous monitors that record fluctuations and detect tampering or interference. Professional testing also ensures proper device placement and closed-house conditions, providing data that's defensible if you're testing as part of a real estate transaction.
What if radon levels come back high?
Results at or above 4.0 picocuries per liter warrant contacting a radon mitigation specialist to install a system that reduces concentrations. Mitigation is typically straightforward and involves installing a vent pipe and fan that draws radon from beneath the foundation and exhausts it above the roofline before it enters living areas.
A1 Home Inspections provides radon test results with clear data on measured concentrations and recommendations based on EPA action levels. Set up your test to confirm whether your home requires mitigation before radon exposure becomes a long-term health concern.
