It's generated from the failure of uranium in soil and rocks. It sometimes obtains concentrated in homes improved https://radon1.com/what-are-the-symptoms-of-radon-poisoning/ dirt with natural uranium down payments. It can get in structures with fractures in floorings or walls, building joints, or spaces in foundations around cords, pipelines or pumps.
Does opening windows reduce radon?
Opening windows improves air circulation and ventilation, helping move radon out of the house and mixing radon-free outside air with indoor air. Opening basement windows helps reduce negative air pressure, diluting radon with clean outdoor air.