How We Discovered the Danger of Radon
In the early 1980s, a nuclear power plant worker in Pennsylvania named Stanley Watras walked into work and unexpectedly set off the facility’s radiation alarms. The strange part? He hadn’t even entered the plant yet.
Investigators were baffled. After testing his home, they discovered extraordinarily high levels of radon gas—far higher than anything considered safe. Until that moment, scientists knew that miners working deep underground faced lung cancer risks from radon exposure, but no one realized that ordinary homes could trap this invisible, radioactive gas, too.
That accidental discovery changed everything.
What We Know About Radon Today
Since the 1980s, radon has been studied extensively by the World Health Organization (WHO), the U.S. Environmental Protection Agency (EPA), and the Centers for Disease Control and Prevention (CDC). Their research confirmed that:
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Radon is the second leading cause of lung cancer in the United States, behind smoking.
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The gas can accumulate anywhere—homes, schools, or workplaces—without any odor, color, or warning signs.
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Radon levels can vary dramatically from one home to another, even on the same street.
The Building Science of Radon Mitigation
Radon forms naturally when uranium in soil and rock breaks down. As the gas moves upward through the ground, it can seep through foundation cracks, floor drains, and sump pits into indoor air. Once inside, it gets trapped—especially in energy-efficient homes that are tightly sealed to conserve heat.
Modern building science has made it possible to safely control and vent radon outdoors. A certified mitigation system uses a series of PVC pipes and a specialized fan to draw the gas from beneath your foundation and expel it above your roofline, where it quickly disperses harmlessly into the atmosphere.
When properly installed and tested, these systems can reduce indoor radon levels by up to 99%, ensuring your home’s air remains safe and healthy.
Why It Matters
What began as one worker’s unexpected radiation alarm has grown into a global effort to make buildings safer. Thanks to decades of research and innovation, radon testing and mitigation have become essential tools for protecting families from this silent threat.
At Smart Space Atlanta, we combine building science expertise with proven mitigation techniques to create healthier, more efficient homes—because clean air shouldn’t be optional.