6 days ago · 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 …

Dec 11, 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 …

Radon is a contaminant that affects indoor air quality worldwide. Because radon is denser than air it accumulates in basements and crawlspaces under dwellings.

Radon is a radioactive substance, which means it emits radiation (a type of energy). Radiation can damage your cells, leading to cancer. Experts estimate that radon exposure is the second …

Dec 11, 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 …

Jul 16, 2025 · Learn about radon, how it affects lung health and what you can do about it. What Is Radon? Radon is a colorless, tasteless and odorless gas that causes lung cancer. Exposure …

Sep 10, 2025 · Radon is a naturally occurring radioactive gas that is colorless and odorless. Radon comes from the natural decay of uranium or thorium, elements found in rocks, soils, …

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

1 day ago · Radon gas is odorless, colorless and the second leading cause of lung cancer. These are some common methods for assessing, preventing or removing it.

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 …