Related links
Technologically Enhanced Naturally Occurring Radioactive
Jul 5, 2022 Naturally Occurring Radioactive Material (NORM) is defined as, Materials as they occur in nature, such as radium, uranium, thorium,
Learn more
Radionuclide Basics: Radium | US EPA
Jul 5, 2022 Radium (chemical symbol Ra) is a naturally occurring radioactive element. The most common isotopes of radium are radium-226 and radium-228.
Learn more
Metal and Metalloid Contaminants - Enviro Wiki
Apr 28, 2022 Metals and metalloids (compounds such as arsenic and antimony) are commonly found in groundwater, either as naturally occurring elements or as
Learn more