Model-derived dose rates per unit concentration of radon in air in a generic plant geometry
| Autor: | J. Vives i Batlle, David Copplestone, S. Vives-Lynch, A. D. Smith, G. Pröhl, T. Strand |
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| Rok vydání: | 2011 |
| Předmět: |
Biophysics
chemistry.chemical_element Radon Soil science Radiation Dosage Models Biological Radiation Protection Humans Dosimetry Diffusion (business) Radiometry General Environmental Science Radiation business.industry Air fungi Plant Stomata Reproducibility of Results Plants respiratory tract diseases Radon Daughters Deposition (aerosol physics) chemistry Radiation protection Interception business Nuclear chemistry |
| Zdroj: | Radiation and Environmental Biophysics. 50:513-529 |
| ISSN: | 1432-2099 0301-634X |
| DOI: | 10.1007/s00411-011-0376-7 |
| Popis: | 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 (214)Po 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. |
| Databáze: | OpenAIRE |
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