Radon Basements: Pennsylvania Lung Damage's Secret Driver

By Franklin Everett Shaw

March 19, 2026

Is your basement silently poisoning you? For Pennsylvania homeowners, especially those nestled in the rolling hills of Lancaster County or the picturesque Poconos, this isn’t a scare tactic; it’s a legitimate concern about radon. This invisible, odorless gas is a leading cause of lung cancer, second only to smoking, and it lurks beneath our feet, seeping into our homes from the ground.

Radon is a naturally occurring radioactive gas produced by the decay of uranium in soil, rock, and water. Pennsylvania’s geology makes it a hotspot.

This article is your comprehensive guide to understanding radon in Pennsylvania, testing your basement, interpreting the results, and taking action to protect your family. We’ll cut through the jargon and provide actionable steps, focusing on Pennsylvania-specific regulations and resources.

First, let’s talk about why Pennsylvania is particularly vulnerable. The Reading Prong, a geological formation rich in uranium, stretches across southeastern Pennsylvania, including parts of Lancaster County. The glacial deposits in the Poconos also contribute to higher radon levels.

Testing is the only way to know if you have a radon problem. Don’t rely on your neighbor’s results; radon levels can vary dramatically even within the same neighborhood.

There are two main types of radon tests: short-term and long-term. Short-term tests, lasting 2-7 days, provide a quick snapshot of radon levels. Long-term tests, conducted over 90 days or more, offer a more accurate representation of your average radon exposure.

For initial screening, a short-term test is usually sufficient. You can purchase DIY radon test kits at most hardware stores or online retailers. Look for kits certified by the Pennsylvania Department of Environmental Protection (DEP).

Here’s a step-by-step guide to performing a DIY short-term radon test in your basement:

Close all windows and exterior doors for 12 hours before starting the test and during the testing period. This is crucial for accurate results.
Place the test kit in the lowest lived-in level of your home, typically the basement. Choose a location away from drafts, high heat, and humidity. Don’t place it near exterior walls, windows, or doors.
Follow the kit’s instructions precisely. Note the start date and time.
Leave the test kit undisturbed for the specified duration (usually 2-7 days).
Seal the kit and mail it to the lab for analysis, following the instructions provided.

Common mistakes during DIY testing include:

Failing to close windows and doors properly.
Placing the test kit in an unsuitable location.
Not following the instructions carefully.
Delaying mailing the kit to the lab.

If you’re concerned about accuracy or prefer professional assistance, hire a Pennsylvania-certified radon testing company. They use calibrated equipment and follow strict protocols.

Interpreting your radon test results is crucial. Radon levels are measured in picocuries per liter of air (pCi/L). The EPA recommends taking action to reduce radon levels if they are 4 pCi/L or higher. Even levels between 2 pCi/L and 4 pCi/L warrant consideration of mitigation.

What happens if your test results are high? Don’t panic. Radon mitigation systems are effective at reducing radon levels.

There are two main types of radon mitigation systems: active and passive. Passive systems are typically installed during new construction and rely on natural ventilation to reduce radon levels. Active systems use a fan to draw radon gas from beneath the foundation and vent it safely outside.

The most common type of active system is sub-slab depressurization (SSD). This involves installing a PVC pipe through the foundation floor and connecting it to a fan that draws radon gas from beneath the slab. The gas is then vented above the roofline.

DIY radon mitigation is generally not recommended, especially for active systems. Improper installation can be ineffective or even dangerous. Hire a Pennsylvania-certified radon mitigation contractor.

Here’s why professional mitigation is essential:

Proper system design: A certified contractor will assess your home’s specific characteristics and design a system that effectively reduces radon levels.
Correct installation: Proper installation is crucial for system performance and safety.
Sealing cracks and openings: Sealing cracks and openings in the foundation helps prevent radon from entering your home.
Proper venting: The radon gas must be vented safely above the roofline to prevent re-entry into the home.
Post-mitigation testing: A certified contractor will perform post-mitigation testing to ensure the system is working effectively.

The cost of radon mitigation in Pennsylvania typically ranges from $800 to $2,500, depending on the system type and the complexity of the installation. While this may seem like a significant investment, it’s a small price to pay for your family’s health.

Pennsylvania has specific regulations regarding radon testing and mitigation. The Pennsylvania DEP maintains a list of certified radon testers and mitigators. Always verify that the contractor you hire is certified.

The Pennsylvania Radon Control Act requires that all radon testing and mitigation companies be certified by the DEP. This ensures that they meet certain standards of training and competence.

Here are some Pennsylvania-specific resources for radon information:

Pennsylvania Department of Environmental Protection (DEP): https://www.dep.pa.gov/
EPA Radon Information: https://www.epa.gov/radon
American Lung Association: https://www.lung.org/

Don’t delay. Take action today to protect your family from the dangers of radon. Test your basement, interpret the results, and implement effective mitigation strategies if necessary. Your health and peace of mind are worth it. Remember, in areas like Lancaster and the Poconos, vigilance is key.