Radon in Georgia: What Every Homeowner in Gwinnett, DeKalb & Hall County Needs to Know
When we think of home safety, we usually think of fire alarms, security systems, and carbon monoxide detectors. But there is a silent, invisible threat lurking in the soil beneath many Georgia homes: Radon gas. It is the second-leading cause of lung cancer in the United States, and unfortunately, Metro Atlanta is a hotspot.
What Is Radon?
Radon is a naturally occurring, radioactive gas. It is completely colorless, odorless, and tasteless. It is produced by the natural decay of uranium found in soil and rock. As it decays, it rises through the ground and enters homes through cracks in the foundation, unsealed crawlspaces, and gaps around pipes.
Why Does Georgia's Granite Geology Increase Radon Risk?
Georgia is famous for its granite—Stone Mountain is a prime example. Granite and similar rock formations naturally contain higher levels of uranium. Because much of North Georgia and Metro Atlanta sits on this bedrock, the soil produces significantly more radon gas than in other parts of the country.
What Are the EPA Zones in Georgia by County?
The EPA categorizes counties into three zones based on their potential for elevated indoor radon levels. Zone 1 has the highest potential (greater than 4.0 pCi/L). In Georgia, Gwinnett, DeKalb, Fulton, and Hall counties are heavily impacted by elevated radon readings. However, even if you live in a Zone 2 or Zone 3 county, your specific home could still have dangerous levels depending on the exact soil composition beneath it.
What Are the Health Risks?
Breathing radon over time increases your risk of lung cancer. The EPA estimates that radon is responsible for over 21,000 lung cancer deaths every year. Because there are no immediate symptoms—no coughing, no headaches, no allergic reactions—people can be exposed to dangerous levels for decades without knowing it.
Testing vs. Mitigation: When to Call a Professional
The only way to know if your home has radon is to test. You can start with a short-term DIY test kit, but for real estate transactions or highly accurate baseline readings, professional testing is recommended. If your levels are at or above 4.0 pCi/L, it's time to call a professional for mitigation. At Micro Clean Restoration, we design active soil depressurization systems that safely vent radon gas away from your living spaces.