radon disclosure Pennsylvania

https://iris-wiki.win/index.php/Pennsylvania_Health_Officials_Urge_Testing_for_Radon_in_Basement_Pennsylvania_as_Winter_Season_Nears

When buying a home in Pennsylvania, sellers must disclose any known radon test results or mitigation measures. Radon is an odorless, radioactive gas that can seep from the soil into basements, posing long-term health risks. Many home inspections include a radon test, especially in areas like the Reading Prong. If you're purchasing a property, it's wise to ask about past levels and any installed radon reduction systems.