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

Apr 13, 2023 · Long-term exposure to high levels of radon can be dangerous to your health. Learn where you’re likely to find high levels of radon, how to test for it, and how it can impact your …

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 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.

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 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 …

Check radon levels by zip code in your area with our updated database. Learn how to safeguard your home from radon exposure by seeing radon levels by zip code.

Nov 20, 2025 · Radon is a noble gas and number 86 on the periodic table. It is also a dangerous gas to breath in excessively. "It is a radioactive material and a gas and chronic exposure to it …

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

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 …