Radon in homes is one of the most overlooked environmental hazards affecting residential properties today. Colorless, odorless, and completely undetectable without proper testing, this gas can silently infiltrate your home and post a significant health risk to those inside. Understanding what radon is, the risks, and knowing how and when to rest for it is the first step toward creating a healthier home.
What is Radon?
Radon is a naturally-occurring radioactive gas that forms from the breakdown of uranium in soil, rock, and water. It is invisible, tasteless and odorless, yet it can pose a serious health threat when it accumulates in a home. Radon can seep through cracks in the foundation or gaps in flooring and walls, quietly building up to dangerous levels without any visible warning signs.
Why Radon is a Serious Health Concern
Radon enters your home from the ground beneath it, seeping through foundation cracks, gaps around service pipes, sump pump pits, or even through well water. Because the gas is completely undetectable without specialized equipment, homeowners are often unaware of its presence.
The U.S. Environmental Protection Agency (EPA) estimates that radon is the second leading cause of lung cancer, surpassed only by smoking. Long-term exposure to high radon levels significantly increases the risk of developing lung cancer—even in non-smokers.
What makes radon particularly dangerous is that any home, regardless of its age, construction type, or location, can have elevated radon levels. Newer homes built to modern codes are not even immune. Whether your home has a basement, crawl space, or slab foundation, it’s essential to test and monitor for radon periodically.
“Radon is one of those hidden risks that doesn’t make a sound, but its long-term effects can be life-changing,” explains Matthew Furlong, owner of Först Consulting Group. “Testing gives you the ability to uncover what’s invisible and act before it ever becomes a problem.”
How Radon Testing Works
Radon testing is the only reliable way to determine whether radon levels in your home are within safe limits. There are two types of testing: short-term and long-term. Short-term tests typically run for 2 to 7 days and provide a snapshot of radon levels, while long-term tests last 90 days or more and offer a more accurate average over time.
Testing devices are places in the lowest livable level of your home, usually the basement or first floor and away from exterior doors and windows. The devices collect radon particles or measure their decay products in the air. While DIY kits are available, a professional radon test conducted by a qualified firm like ours will ensure the highest accuracy level, eliminate tampering risks, and provide you with comprehensive, easy-to-understand results.
“Testing for radon is low-cost, low-effort, and extremely high-value. It’s one of the simplest ways to prevent a long-term health risk, and yet it’s often overlooked until a real estate deal or health scare brings it to light,” Furlong urges.
What to Do if Your Hone’s Radon Levels are Elevated
The EPA recommends action when indoor radon levels reach or exceed 4.0 picocuries per liter (pCi/L), and our region is particularly susceptible. (See EPA Map of Radon Zones.) Fortunately, effective mitigation systems are available. The most common method is sub-slab depressurization, which uses a fan and piping system to redirect radon gas from beneath your home to the outside air. Other solutions include sealing foundation cracks and improving indoor ventilation.
Once mitigation measures are installed, follow-up testing is critical to ensure the system is functioning properly, using unbiased, science-backed assessments. We understand the specific geological and structural factors that affect radon levels in homes across the Washington DC/Northern Virginia metropolitan region and can offer practical guidance for testing and remediation.
See our previous post: Radon Testing: Safeguard Your Home and Protect Your Family.
Radon Testing with Först Consulting Group
Först Consulting Group is a forensic investigation firm that applies rigorous methodology, advanced testing protocols, and industry-recognized standards to deliver precise and unbiased results when testing for radon.
“We approach radon the same way we handle any environmental or structural concern—from a place of data, facts, and forensic integrity,” Furlong says. “Our job isn’t to sell you a solution, it’s to give you the clearest possible picture of what’s happening under your roof, so you can make a confident and informed decision.”
We urge Northern Virginia, Maryland, and Washington D.C. homeowners to understand the risks of radon and take appropriate action when necessary. Professional testing and interpretation are essential to protect your family and your property. Contact us to learn more about radon testing or our other services.
