Dear Dr. Z – I was at our local HPS Chapter meeting and overheard a few health physicists mention “primordial radionuclides.” I’ve got to admit I’m not quite sure what this means – can you tell me what primordial radionuclides are, where they come from, and why they’re important? You know, when I say this … Continue reading Primordial Radionuclides: Origin, Importance, and Health Impact