Revision of the ICRP dosimetric model for the human respiratory tract
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.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 6319943
- Report Number(s):
- PNL-SA-17594; CONF-891290-2; CONF-900733-1; ON: DE91005086
- Resource Relation:
- Conference: 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
- Country of Publication:
- United States
- Language:
- English
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61 RADIATION PROTECTION AND DOSIMETRY
NEOPLASMS
RADIOINDUCTION
PERSONNEL
RADIATION PROTECTION
RADIOACTIVE AEROSOLS
HEALTH HAZARDS
RESPIRATORY SYSTEM
BIOLOGICAL MODELS
DOSE EQUIVALENTS
ANNUAL LIMIT OF INTAKE
DOSE LIMITS
DOSIMETRY
ICRP
INHALATION
LUNG CLEARANCE
MAN
RADIATION DOSES
AEROSOLS
ANIMALS
CLEARANCE
COLLOIDS
DISEASES
DISPERSIONS
DOSES
EXCRETION
HAZARDS
INTAKE
INTERNATIONAL ORGANIZATIONS
MAMMALS
PRIMATES
SAFETY STANDARDS
SOLS
STANDARDS
VERTEBRATES
560161* - Radionuclide Effects
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