30 TAC § 336.307. Determination of External Dose from Airborne Radioactive Material
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Texas Administrative Code › Title 30 ENVIRONMENTAL QUALITY › Part 1 TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 336 RADIOACTIVE SUBSTANCE RULES › 30 TAC § 336.307
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(a) Licensees shall, when determining the dose from airborne radioactive material, include the contribution to the deep-dose equivalent, lens dose equivalent, and shallow-dose equivalent from external exposure to the radioactive cloud. See notes 1 and 2 of §336.359, Appendix B, of this title (relating to Annual Limits on Intake (ALI) and Derived Air Concentrations (DAC) of Radionuclides for Occupational Exposure; Effluent Concentrations; Concentrations for Release to Sanitary Sewerage).
(b) Airborne radioactivity measurements and DAC values shall not be used as the primary means to assess the deep-dose equivalent when the airborne radioactive material includes radionuclides other than noble gases or if the cloud of airborne radioactive material is not relatively uniform. The determination of the deep-dose equivalent to an individual shall be based upon measurements using instruments or individual monitoring devices.
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