Primary sources cited across this site. Retrieved dates are recorded where supplied.
| Title and link | Retrieved |
|---|---|
| Half of Colorado homes have elevated radon levels, which can cause lung cancer | 2026-11-01T16:08:38.095798+00:00 |
| Testing and mitigating your home for radon | 2026-11-01T16:08:38.095798+00:00 |
| Radon causes lung cancer: test your home | 2026-11-01T16:08:38.095798+00:00 |
| Tribal IAQ Resource Directory: Radon | US EPA | 2026-11-01T16:08:38.786852+00:00 |
| Prevent Lung Cancer by Testing Your Home for Radon | US EPA | 2026-11-01T16:08:38.786852+00:00 |
| From the Desk of the Regional Administrator - "This January, Take Time to Protect Your Home from This Invisible Cancer Risk" | US EPA | 2026-11-01T16:08:38.786852+00:00 |
