abstract:The strontium unit is a unit used to measure the amount of radioactivity from strontium-90, a radionuclide found in nuclear fallout, in a subject's body; as the human body absorbs strontium as if it were calcium, incorporating it into the skeleton, its presence is very common. One strontium unit is equal to one picocurie from strontium-90 per gram of calcium (37 becquerels per kilogram) in the subject's skeleton.
N
a unit expressing the concentration of strontium-90 in an organic medium, such as soil, milk, bone, etc, relative to the concentration of calcium in the same medium 锶单位 ( abbr: SU)