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 health.

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 …

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 …

Dec 1, 2025 · Radon is a colorless, odorless radioactive gas produced by the natural breakdown of uranium in soil and rock. It can enter homes through foundation cracks and openings — and …

Nov 18, 2024 · Concerned about high radon levels? Learn about different radon testing methods and mitigation options in our comprehensive guide.

5 days ago · A large pipe with a fan inside is a simple way to think of a radon mitigation system. But how does it work? We asked an expert to explain.

Jun 5, 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, and water.

Radon is a cancer-causing, radioactive gas. It comes from the natural (radioactive) breakdown of uranium and radium in soil, rock, and water and is released into the air we breathe.