real estate radon test

https://aged-wiki.win/index.php/Why_a_Radon_Test_for_Home_Sale_Is_a_Smart_Move_in_St._Louis_Real_Estate

Before finalizing a home purchase, a radon test can reveal if the basement or lower levels have unsafe levels of this radioactive gas, which comes from soil and rocks; getting a short-term test kit and placing it in the lowest lived-in area for a few days gives you a clear picture of potential health risks.