Natural radon concentrations in the Earth's atmosphere are so low that radon-rich water in contact with the atmosphere will continually lose radon by volatilization.

Nov 13, 2025 · Radon is a naturally occurring radioactive gas that can cause lung cancer. You can’t see or smell radon. Testing is the only way to know your level of exposure. Radon can have a big impact …

Information about how radon gets into your home, how it affects you, and how to reduce it.

Jan 25, 2023 · Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon level and smoking prevalence. Lung cancer risk is higher …

Aug 7, 2024 · Radon is a radioactive gas you can't see, feel, taste, or smell. It forms naturally when uranium — a heavy metal found in the ground and most rocks on the planet — decays, turning into …

Radon is a naturally occurring, colorless, odorless, radioactive gas. You can develop lung cancer if you breathe in high levels of radon gas over time.

Oct 31, 2025 · Radon, chemical element, a heavy radioactive gas of Group 18 (noble gases) of the periodic table, generated by the radioactive decay of radium. It is a colorless gas, 7.5 times heavier …

Dec 4, 2025 · Radon is an odorless, invisible, radioactive gas naturally released from rocks, soil, and water. Radon can get into homes and buildings through soil, small cracks or holes in your home's …

Aug 15, 2025 · What did the National Academy of Sciences have to say about radon? Does the 2009 World Health Organization's recommendation of a lower radon action level affect the EPA's radon …

Radon is a naturally occurring radioactive gas that has become a significant concern in homes and buildings worldwide. Invisible, odorless, and tasteless, radon emerges from the natural decay of …