radon in new homes 2

https://theyorkparadontestinghaven.dovetailscope.com/posts/york-pa-radon-testing-gains-urgency-as-new-data-highlights-health-risks

Many new homes, especially those built in areas with high natural uranium in the soil, can trap radon gas inside because of energy-efficient sealing. It seeps silently from the ground through cracks or gaps, building up to dangerous levels over time without any obvious smell or color. Testing is the only way to know for sure if your family is breathing in this radioactive gas, and simple mitigation systems can be added during construction to keep it out.