Reference summary — not medical advice or a personal risk estimate.
Radon (basement / ground floor)
Naturally-occurring radioactive gas that seeps from soil into buildings.
Also known as: radon gas
IARC-classified factors documented in this product
- Exposure from · Source: IARC
Radon seeps from soil into buildings; second leading cause of lung cancer after tobacco.
How to read this page
A factor appearing on this page means it has been documented in this product category — through EPA / FDA testing, IARC monographs, or regulatory recall records. Whether it presents a meaningful personal risk depends on the specific formulation, dose, and how you're exposed. Click any factor to read what science actually says about it, and where.