surface_radioactivity_content_of_137Cs
https://w3id.org/hacid/data/cs/variables/cf/surface_radioactivity_content_of_137Cs <https://w3id.org/hacid/onto/data/Variable>
The surface called "surface" means the lower boundary of the atmosphere. "Content" indicates a quantity per unit area. "Radioactivity" means the number of radioactive decays of a material per second. "Cs" means the element "cesium" and "137Cs" is the isotope "cesium-137" with a half-life of 1.10e+04 days.
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surface_radioactivity_content_of_137Cs