Exposure of the American People to Iodine-131 from Nevada Nuclear-Bomb Tests Review of the National Cancer Institute Report and Public Health Implications (1999) / Chapter Skim
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Appendix E. Applicable Radiation Exposure Standards and Guides: Past and Present
Appendix E. Applicable Radiation Exposure Standards and Guides: Past and Present
Pages 214-220
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From page 214... ...
A1though the accompanying standards were developed primarily for application to radiation workers, because few members of the public were anticipated to be exposed to artificial sources of radiation exposure (beyond the use of radiation in the healing arts) the NCRP also stated that the permissible concentrations were "for use beyond the control area." (Table 2, page 11~.
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From page 215... ...
recommended that " ... in the course of their normal activities, protective measures be taken to make sure that no minor actually receives radiation at a weekly rate higher than onetenth the respective permissible weekly doses for the critical organs" (page 78~.
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From page 216... ...
Although it is not our responsibility to determine the exact level, we believe that the population permissible somatic dose for man-made radiations, excluding medical and dental sources, should not be larger than that due to natural background radiation, without a careful examination of the reasons for, and the expected benefits to society from a larger dose" (NCRP, 1960, page 4851. Since the NCRP, in its report, assumed that the background dose rate was 100 mrem per year (NCRP, 1960, page 485)
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From page 217... ...
The Federal Radiation Council endorses in principle the recommendations of such groups as the NAS-NRC, the NCRP, and the ICRP concerning population genetic dose, and recommends the use of the Radiation Protection Guide of 5 rem in 30 years (exclusive of natural background and the purposeful exposure of patients by practitioners of the healing arts) for limiting the average genetically significant exposure of the total U
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From page 218... ...
On the basis of this and other information, the FRC stated: "Considering existing information on the biological risks associated with doses from iodine-131 and the kinds of protective actions available to avert the dose from iodine-13 1 that has been deposited on pastures by dairy cows, the Council has concluded that such protective action as the diversion of milk or the substitution of stored feed for pasturage to avert individual doses less than 30 reds would not usually be justifiable under the conditions considered most likely to occur. This dose is recommended as the Protective Action Guide for iodine131" (Section IV, page 12~.
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From page 219... ...
The total effective dose equivalent to individual members of the public from the licensed operation does not exceed 0.1 rem (1 millisievert) in a year, exclusive of the dose contributions from background radiation, any medical administration the individual has received, voluntary participation in medical research programs, and the licensee's disposal of radioactive materials into sanitary sewerage ..." (paragraph 20.1301~.
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From page 220... ...
S Environmental Protection Agency and the Food and Drug Administration in their guides to emergency and protective action insofar as dose to the thyroid is concerned set the standards for action as 5-25 red and 1.5-15 red, respectively.
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