Radium, combined (-226 & -228) in the drinking water of 49 States, 23,234 water utilities & effecting the health of 148 million people in the USA https://www.ewg.org/tapwater/contaminant.php?contamcode=4010#:~:text=Radium releases radioactive particles that,measure of radioactivity in water. Enter YOUR Zip Code to find out what is in your #tapwater at https://www.ewg.org/tapwater/