
Radon - Wikipedia
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 | US EPA
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 …
Radon and Your Health | Radon | CDC
Feb 16, 2024 · Radon is an odorless and invisible radioactive gas naturally released from rocks, soil, and water. Radon can get trapped inside homes and buildings, and build up in the air. Over time, …
Radon Gas: Causes, Exposure, Symptoms & Complications
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 most …
Radon - American Lung Association
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 to …
Radon - World Health Organization (WHO)
Jan 25, 2023 · Radon is one of the leading causes of lung cancer. Radon is estimated to cause between 3% to 14% of all lung cancers in a country, depending on the national average radon level and …
Radon Myths Debunked: The Truth About This Invisible Threat
1 day ago · Radon is a naturally occurring, invisible, and odorless radioactive gas that can seep into homes and buildings, posing a significant health risk. Unfortunately, many misconceptions about …
What is Radon? Understanding the Invisible Risk in Your Home
Radon is an invisible, odorless gas that results from the radioactive decay of uranium found naturally in soil, rock, and water. This naturally occurring radioactive gas seeps into our homes, infiltrating …
Radon | Radon | CDC
Information about how radon gets into your home, how it affects you, and how to reduce it.
Radon Frequently Asked Questions - US EPA
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 …