
Radon | US EPA
Mar 3, 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 on your health and indoor air quality. All homes should be tested for radon.
What is Radon? - US EPA
Nov 20, 2024 · Radon is a radioactive gas that forms naturally when uranium, thorium, or radium, which are radioactive metals break down in rocks, soil and groundwater. People can be exposed to radon primarily from breathing radon in air that comes through cracks and gaps in …
Radionuclide Basics: Radon - US EPA
Feb 6, 2025 · Radon (chemical symbol Rn) is an odorless, colorless, radioactive gas. It comes from the natural decay of uranium and radium found in nearly all rocks and soils. Radon can …
Health Risk of Radon - US EPA
Feb 27, 2025 · Exposure to Radon can cause lung cancer in both non-smokers and smokers. Learn more about Radon risks and read studies on the health effects of radon exposure.
What is radon gas? Is it dangerous? | US EPA
Aug 21, 2019 · Radon is a naturally-occurring radioactive gas that can cause lung cancer. Radon gas is inert, colorless and odorless. Radon is naturally in the atmosphere in trace amounts.
How does radon get into your home? - US EPA
Mar 27, 2025 · Any home may have a radon problem. Radon is a radioactive gas. It comes from the natural decay of uranium that is found in nearly all soils. It typically moves up through the ground to the air above and into your home through cracks and other holes in the foundation. Your home traps radon inside, where it can build up. Any home may have a radon ...
Prevent Lung Cancer by Testing Your Home for Radon
Jan 2, 2025 · Radon is an odorless, colorless, naturally occurring radioactive gas that, when left unaddressed, can build up inside a home. Over time, exposure to radon can cause lung cancer.
The EPA Map of Radon Zones | US EPA
Dec 2, 2024 · The Map of Radon Zones was developed using data on indoor radon measurements, geology, aerial radioactivity, soil parameters, and foundation types. The EPA recommends that this map be supplemented with any available local data in order to further understand and predict the radon potential for a specific area.
Acerca del radón - US EPA
Aug 25, 2024 · ¿Qué es el radón? El radón es un gas radioactivo que causa cáncer. Aunque el radón no se puede ver u oler, ni tiene sabor puede causar problemas en su casa. Se estima …
Radon Risks and Solutions - US EPA
Nov 20, 2024 · Radon is a naturally occurring radioactive gas that can enter homes from the ground and build up to dangerous levels. Learn how you can reduce your risk and exposure to radon.