National Council on Radiation Protection and Measurements

J. E. Gray, Proceedings of the Eighteenth Annual Meeting of the National Council on Radiation Protection and Measurements, Radiation Protection andNew Medical... 

Maximum Permissible Body Burdens and Maximum Permissible Concentration of Radionuclides in Air and in Water for Occupational Exposure, ReportNo. NCRP, No. 22, National Council on Radiation Protection and Measurement, Washington, D.C., 1959. 

The ICRP (1994b, 1995) developed a Human Respiratory Tract Model for Radiological Protection, which contains respiratory tract deposition and clearance compartmental models for inhalation exposure that may be applied to particulate aerosols of americium compounds. The ICRP (1986, 1989) has a biokinetic model for human oral exposure that applies to americium. The National Council on Radiation Protection and Measurement (NCRP) has also developed a respiratory tract model for inhaled radionuclides (NCRP 1997). At this time, the NCRP recommends the use of the ICRP model for calculating exposures for radiation workers and the general public. Readers interested in this topic are referred to NCRP Report No. 125 Deposition, Retention and Dosimetry of Inhaled Radioactive Substances (NCRP 1997). In the appendix to the report, NCRP provides the animal testing clearance data and equations fitting the data that supported the development of the human mode for americium. 

NCRP. 1987. Use of bioassay procedures for assessment of internal radionuclide deposition. National Council on Radiation Protection and Measurements. Bethesda, MD. Report No. 87. 

NCRP115 = National Council on Radiation Protection and Measurements. 1993. Risk Estimates for Radiation Protection, Report 115. Bethesda, Maryland NRC = Nuclear Regulatory Commission. 

NCRP, Exposures from the Uranium Series with Emphasis on Radon and Its Daughters, National Council on Radiation Protection and Measurements Report No. 77 (1984). 

Calculation of lung cancer risk for radon daughter exposure is based on factors developed by the National Council on Radiation Protection and Measurements (NCRP, 1984). The risk coefficients are expressed in terms of lifetime risk from lifetime exposure for a population of mixed ages, comparable to the standardized U.S. population, and range between one and two per 10,000 WLM of exposure. The percent increase in risk is related to a normal lifetime lung cancer risk of 0.041. 

NCRP (1953). National Committee on Radiation Protection and Measurements, Maximum Permissible Amounts of Radioisotopes in the Human Body and Maximum Permissible Concentrations in Air and Water, NCRP Report No. 11, published as National Bureau of Standards Handbook No. 52, Superseded by NCRP Report No. 22 (National Council on Radiation Protection and Measurements, Washington). 

Recommendations of the NATIONAL COUNCIL ON RADIATION PROTECTION AND MEASUREMENTS... 

Copyright National Council on Radiation Protection and Measurements 1978... 

National Council on Radiation Protection and Measurement (NCRP), 21 279 National Defense Stockpile, chromium in, 6 470, 483 84... 

Values for yields of 20 to 10,000 extrapolated from NCRP, Management of Terrorist Events Involving Radioactive Materials, Report 138, 2001, National Council on Radiation Protection and Measurement. With permission. 

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