How Radon Gas Enters Homes, Extension

Radon can enter and collect inside almost any home or other building through dirt floors, hollow block walls, cracks in the foundation floor and walls, sump pumps, openings around floor drains, joints and foundation openings for pipes, sewers and other utility connections.

How Radon Gas Enters Homes, Extension

Cooperative Extension offers free radon test kits: Winter the best

Radon Testing NPI East Denver Metro

How to Reduce Radon: 12 Steps (with Pictures) - wikiHow

Radon – Invisible Threat

Cornell Cooperative Extension

Free radon test kits available in Lyon County through February

Canada Radon Testing, Removal and Mitigation

Building Radon Safe UGA Cooperative Extension

New Infographic: How Does Radon Get into Homes?

Radon Potential - International Association of Certified Indoor