Mapping to be determined
radioactivity_concentration_of_222Ra_in_air
"Radioactivity" means the number of radioactive decays of a material per second. "Radioactivity concentration" means radioactivity per unit volume of the medium. "Ra" means the element "radium" and "222Ra" is the isotope "radium-222" with a half-life of 4.41e-04 days.
Climate and Forecast Standard Names