Uh huh. You are aware that pretty much everything has radioactivity in it? And that there are serious regulations on the limits of those due to it generally being a bad thing. Those regulations determining safe limits for it. As in, it is safe. As in, no harm is done. When you stay within those limits, you’re fine. Just like with every single thing regarding chemicals and waste, and pretty much anything. That is why the regulations exist in the first place.