Letter | Published:

Assessment of Chronic Exposure to Radiostrontium by Urinary Assay

Naturevolume 191pages390391 (1961) | Download Citation



RADIOACTIVE contamination of the biosphere and particularly of the human population is a contemporary problem of high interest, and strontium-90 is perhaps the most important single radionuclide concerned. We require to know what levels are being incorporated into the human population at any given time. Since food is the major route by means of which environmental radiocontaminants reach human beings, attention has largely been turned to the monitoring and surveying of food and water. This communication proposes that urinary assays of strontium-90 and calcium may have considerable advantage for the estimation of the contemporary strontium-90 to calcium ratio of the intake, and for estimation of the strontium-90 to calcium ratio in newly forming bone. The same considerations would also apply to strontium-89 whenever this radionuclide is of inportance.

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  1. Department of Physical Biology, N.Y. State Veterinary College, Cornell University, Ithaca, New York

    • C. L. COMAR
    •  & JAY GEORGI


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