Radon | US EPA - U.S. Environmental Protection Agency
Nov 20, 2024 · 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.
Health Risk of Radon | US EPA - U.S. Environmental Protection …
Dec 2, 2024 · 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.
How does radon get into your home? - US EPA
Jul 25, 2024 · Your home traps radon inside, where it can build up. Any home may have a radon problem. This means new and old homes, well-sealed and drafty homes, and homes with or without basements. Radon from soil gas is the main cause of radon problems. Sometimes radon enters the home through well water.
What is EPA's Action Level for Radon and What Does it Mean?
Dec 2, 2024 · Radon in air is ubiquitous (existing or being everywhere at the same time). Radon is found in outdoor air and in the indoor air of buildings of all kinds. The EPA recommends homes be fixed if the radon level is 4 pCi/L (picocuries per liter) …
Basic Information about Radon in Drinking Water - US EPA
Jun 30, 2014 · radon in the air in your home (frequently called "radon in indoor air") and radon in drinking water. Radon can get into the air your breathe and into the water you drink. Radon is also found in small amounts in outdoor air. Most of the radon …
Why must radon be vented into the air above my home's roof?
Sep 3, 2024 · Radon gas is approximately 7.5 times heavier than air. It is however a noble gas with no chemical affinity but is easily influenced by air movements and pressure. In a house with forced air heating and cooling, radon gas can easily be distributed throughout the entire dwelling.
What is Radon? | US EPA - U.S. Environmental Protection Agency
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
May 6, 2024 · The national average for radon in outdoor air is 14.8 becquerel/m 3 (Bq/m 3), or 0.4 picocuries per liter (pCi/L), while the average for indoor air is 48.1 Bq/m 3 (1.3 pCi/L). Radon can move up from the ground into buildings through openings …
U.S. Environmental Protection Agency | US EPA
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Radon in Homes, Schools and Buildings | US EPA - U.S.
Jan 24, 2024 · The amount of radon in the air is measured in picocuries per liter of air, or pCi/L. The EPA recommends taking action to reduce radon levels for homes and schools with radon levels at 4 pCi/L or greater..