Model-derived dose rates per unit concentration of radon in air in a generic plant geometry

Citation

Vives i Batlle J, Smith A, Vives Lynch S, Copplestone D, Prohl G & Strand T (2011) Model-derived dose rates per unit concentration of radon in air in a generic plant geometry. Radiation and Environmental Biophysics, 50 (4), pp. 513-529. https://doi.org/10.1007/s00411-011-0376-7

Abstract
A model for the derivation of dose rates per unit radon concentration in plants was developed in line with the activities of a Task Group of the International Commission on Radiological Protection (ICRP), aimed at developing more realistic dosimetry for non-human biota. The model considers interception of the unattached and attached fractions of the airborne radon daughters by plant stomata, diffusion of radon gas through stomata, permeation through the plant’s epidermis and translocation of deposited activity to plant interior. The endpoint of the model is the derivation of dose conversion coefficients relative to radon gas concentration at ground level. The model predicts that the main contributor to dose is deposition of 214Po α-activity on the plant surface and that diffusion of radon daughters through the stomata is of relatively minor importance; hence, daily variations have a small effect on total dose.

Journal
Radiation and Environmental Biophysics: Volume 50, Issue 4

People

Professor David Copplestone

Professor, Biological and Environmental Sciences