
Radon - Wikipedia
Radon in a cloud chamber showing its radiation Radon is a colorless, odorless, and tasteless [16] gas and therefore is not detectable by human senses alone. At standard temperature and …
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 …
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. …
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 …
Radon | Definition, Properties, Effects, & Facts | Britannica
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 …
Radon in California
The maps of Radon Zones identify areas of each state that have the highest potential for elevated indoor radon levels (greater than 4 pCi/L) (EPA United States Radon Map).
Radon | National Institute of Environmental Health Sciences
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, …
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 …
Radon myths busted. What you need to know about the deadly gas
Dec 14, 2025 · Radon monitors will soon be available at Columbus libraries. Here's what to know about the deadly gas.
NCDHHS Offering Free Residential Radon Test Kits for Radon …
3 days ago · Raleigh In recognition of National Radon Action Month, the North Carolina Department of Health and Human Services is providing 8,000 free radon test kits available …