When the temperature drops, most people worry about staying warm—not what’s lingering in the air they’re breathing indoors. But winter isn’t just cold season—it’s radon season, too.
If you’ve been putting off radon testing, here’s why the winter months are the most accurate and most important time to get it done.
Why Radon Levels Rise in Winter
Radon is a naturally occurring radioactive gas that seeps into buildings through cracks in the foundation, plumbing gaps, and even basement walls. During winter, several things happen that increase your exposure:
- Windows and doors stay closed, limiting air exchange.
- Heating systems circulate indoor air, not fresh air.
- The “stack effect” (where warm indoor air rises and escapes) pulls in more radon from the ground.
So while you’re trying to keep warm, your home may be trapping radon inside.
More Time Indoors = More Exposure
Here’s the kicker: most people spend over 90% of their time indoors during winter. That means any radon in your home, apartment, or workplace has longer to affect your health.
❗ The EPA estimates that radon exposure causes over 21,000 lung cancer deaths annually in the U.S.
It’s the second leading cause of lung cancer after smoking.
Winter Testing = Better Accuracy
Winter conditions actually help radon tests produce more reliable results. Why?
- Indoor air is more stagnant
- Ground-level pressure differences are more pronounced
- There’s minimal airflow dilution from open windows
So instead of underestimating your risk in summer, winter gives you a realistic picture of what you’re breathing.
What About Georgia and South Carolina?
Our local area isn’t immune. In fact:
- Aiken County has some of the highest radon readings in South Carolina.
- Northern parts of Georgia, including Augusta-area suburbs, are within moderate to high radon zones according to EPA mapping.
Just because your home feels safe doesn’t mean it is.
What to Do This Winter
If you haven’t tested your home or apartment recently (or ever), winter is the right time to act:
- Get a short-term radon test to measure current levels
- If levels are high (4.0 pCi/L or above), take action toward mitigation
- Test even if you’re renting—radon affects renters too
Why Choose EnviroPro 360 for Winter Testing?
We’re not just certified radon testers—we’re your local air quality partner.
- Serving both residential and commercial properties in Georgia and South Carolina
- Fast, professional on-site testing—with results you can understand
- Guidance on next steps if elevated levels are detected
- Fully certified and OSHA-compliant
Don’t wait for spring to breathe easy.
Schedule your winter radon test with EnviroPro 360 and protect your family when it matters most.
