Staff Report, Issue 8U.S. Government Printing Office, 1967 - Radiation |
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Page 53
... mucus flow throughout the bronchial tree . The end product is an estimate of the number of disintegra- tions of polonium 218 and polonium 214 separately occurring in the respiratory regions : ( 1 ) trachea , ( 2 ) main bronchi , ( 3 ) ...
... mucus flow throughout the bronchial tree . The end product is an estimate of the number of disintegra- tions of polonium 218 and polonium 214 separately occurring in the respiratory regions : ( 1 ) trachea , ( 2 ) main bronchi , ( 3 ) ...
Page 54
... mucus layer , but that the terminal polonium 214 atoms are distributed in a linear gradient from a maximum at the mucus surface to zero at the boundary of the bronchial epithelium . 3. Jacobi uses values for the thickness of the mucus ...
... mucus layer , but that the terminal polonium 214 atoms are distributed in a linear gradient from a maximum at the mucus surface to zero at the boundary of the bronchial epithelium . 3. Jacobi uses values for the thickness of the mucus ...
Page 57
... mucous . 2. Uncertainties remain concerning the actual range of alpha particles in tissue , the role of the delta rays , and the thickness of the mucus and bronchial epithelium . 3. Engel 23 states that the mucous membrane of the ...
... mucous . 2. Uncertainties remain concerning the actual range of alpha particles in tissue , the role of the delta rays , and the thickness of the mucus and bronchial epithelium . 3. Engel 23 states that the mucous membrane of the ...
Contents
The Radiation Environment Associated With Uranium Mining | 9 |
Biological Effects Associated With Exposure to Radon and Radon | 17 |
Control Capabilities in Uranium Mines | 33 |
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222 per liter alpha particles Altshuler areas average exposure basal cells bronchi bronchial epithelium Bureau of Mines calculated Cancer Mortality Carcinoma Chamberlain and Dyson Colorado concentration of radon cumulative exposure cumulative WLM daughter products decay products delta rays deposition effective estimated exposure categories exposure to radon factors Federal Radiation Council Fluorspar free ions gases Health and Safety Health Physics incidence of lung individual industry ionization Joachimsthal levels liter of air lung cancer lung cancer rates main bronchi miners models mucus mucus layer Nuclear number of lung observed Open pit mines operation percent polonium 218 Proc pulmonary radiation dose radiation hazards radiation protection radioactive decay Radiological Radium radon and radon radon daughter concentrations radon daughter products rads range reference atmosphere reported respiratory system risk samples silicosis Thorium tion tissue trachea Tumors U.S. Bureau underground mines underground uranium mines United States uranium