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Article
November 17, 1962

Radiation Protection

Author Affiliations

U.S. Naval Radiological Defense Laboratory, San Francisco 27

JAMA. 1962;182(7):820. doi:10.1001/jama.1962.03050460112021

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Abstract

To the Editor:—  I think we need editorial comment on the article by Terry and Chadwick (JAMA180:995-999 [June 23] 1962).The Surgeon General, USPHS, explains the 3 ranges of radiation hazard, particularly for intake of radioisotopes from a contaminated environment. Range 1 requires only a check to see that the nonhazardous level is in fact correctly reported. Range 2 calls for active surveillance and routine control. Range 3 implies that intakes will exceed the Federal Radiation Council's adopted limit ( called radiation protection guide) derived from the National Committee's MPD. It calls for appropriate positive control measures."The guides were considered to represent an appropriate balance between the requirements of health protection and of the beneficial uses of radiation and atomic energy."Range 3 (do something) is properly based on RPG when applied to the user. But RPG is not in fact the threshold of injury—it is only the

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