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Revision of the ICRP dosimetric model for the human respiratory tract [electronic resource]

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Bibliographic Details
Online Access: Online Access
Corporate Authors: Pacific Northwest Laboratory (Researcher), Pacific Northwest National Laboratory (U.S.) (Researcher)
Format: Government Document Electronic eBook
Language:English
Published: Washington, D.C : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Research ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 1990.
Subjects:
Excretion.
Dosimetry.
International Organizations.
Annual Limit Of Intake.
Radiation Doses.
Mammals.
Health Hazards.
Intake.
Aerosols.
Primates.
Dose Limits.
Hazards.
Radioactive Aerosols.
Safety Standards.
Animals.
Dispersions.
Radiation Protection.
Biological Models.
Standards.
Colloids.
Diseases.
Dose Equivalents.
Respiratory System.
Man.
Personnel.
Lung Clearance.
Doses.
Inhalation.
Vertebrates.
Clearance.
Sols.
Icrp.
Radioinduction.
Neoplasms.
Radiation, Thermal, And Other Environ. Pollutant Effects On Living Orgs. And Biol. Mat..
Description
Abstract:Although the dosimetric model of the respiratory tract used in ICRP Publication 30 had not been shown to be seriously deficient for the purpose of calculating Annual Limits on Intake (ALIs) for workers, the availability of new information led the ICRP in 1984 to create a special Task Group to review the dosimetric model of the respiratory tract and, if justified, propose revisions or a new model. The Task Group directed its efforts toward improving the model used in Publication 30 rather than developing a completely new model. The objective was a model that would facilitate calculation of biologically meaningful doses; be consistent with morphological, physiological, and radiobiological characteristics of the respiratory tract; incorporate current knowledge; meet all radiation protection needs; be user friendly by not being unnecessarily sophisticated; be adaptable to development of computer software for calculation of relevant radiation doses from knowledge of a few readily measured exposure parameters; be equally useful for assessment purposes as for calculating ALIs; be applicable to all members of the world population; and consider the influence of smoking, air pollutants, and diseases of the inhalation, deposition, and clearance of radioactive particles from the respiratory tract. The model provides for calculation of a committed dose equivalent for each region, adjusted for the relative cancer sensitivity of that region, and for the summing of these to yield a committed dose equivalent for the entire respiratory tract. 3 figs.
Item Description:Published through the Information Bridge: DOE Scientific and Technical Information.
12/01/1990.
"pnl-sa-17594"
" conf-891290--2"
" conf-900733--1"
"DE91005086"
21. annual NIRS symposium on inhalation of airborne particles and induction mechanisms; 3. international workshop on respiratory tract dosimetry, No City Given (Japan); Albuquerque, NM (USA), 7-9 Dec 1989; 1-3 Jul 1990.
Bair, W.J.
Physical Description:Pages: (10 p) : digital, PDF file.

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