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 naturally occurring, radioactive gas found in soil and rock that gets into the air you breathe. It seeps into buildings through cracks in the foundation, walls, and joints.

Jan 8, 2026 · 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 …

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 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 …

4 days 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.

2 days ago · Radon and smoking are both known causes of lung cancer, but when someone is exposed to both, the results can be deadly.

Radon is an odorless, invisible, radioactive gas that can enter your home from the ground through cracks in the foundation. A known human carcinogen, radon is the second leading cause of lung …

Radon.com is the trusted online source for radon solutions and information. Learn effective strategies to protect your home or workplace from radon exposure.

Denver (January 5, 2026) — Gov. Jared Polis has proclaimed January 2026 National Radon Action Month to encourage Coloradans to reduce their risk of radon-induced lung cancer. The Colorado …