Effect of Residential Radon Decay Product Dose Factor Variability on Reporting of Dose

Health Physics
Naomi H Harley

Abstract

Guidelines for occupational exposure to radiation are based on annual absorbed or effective dose. Guidelines for Rn exposure are currently based on air concentrations of Rn or decay products. Models of bronchial dose from decay product exposure are based on calculations that have five major parameters with parameter variabilities ranging from 20 to 50%. Many countries currently use the ICRP dose conversion convention, which is a ratio of lifetime Rn lung cancer risk to lifetime atomic bomb dose risk. The results of ongoing epidemiology changed both lifetime risk values, and the dose conversion convention has increased by a factor of 2. Therefore, the current dose conversion convention risk ratio is to be replaced by biokinetic dosimetric models. The main effect of variability in the value of Rn dose factors on industry is that the workplace atmosphere must be characterized accurately, and at present, this is not possible. A history of the dose factor models is central to factor development. The values of the dose model parameters are described illustrating the difficulty in calculation of a dose factor with universal applicability. The objective is to show the range of each parameter and the effect of the dose factor used when ...Continue Reading

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Citations

Jul 23, 2019·Radiation Protection Dosimetry·J P Mc Laughlin
Aug 28, 2018·Health Physics·Jing Chen, Naomi H Harley
Jan 6, 2021·International Journal of Molecular Sciences·Andreas MaierBenjamin Frey
Jul 20, 2021·Radiation Protection Dosimetry·James W MarshJohn D Harrison
Jan 2, 2022·Radiation and Environmental Biophysics·Jing Chen

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