Model For Assessing Radiation Dose To Epithelial Cells Of The Human Respiratory Tract From Radon Progeny
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Model For Assessing Radiation Dose To Epithelial Cells Of The Human Respiratory Tract From Radon Progeny
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Author :
language : en
Publisher:
Release Date : 1990
Model For Assessing Radiation Dose To Epithelial Cells Of The Human Respiratory Tract From Radon Progeny written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with categories.
A computational model was developed to evaluate radiation doses to sensitive cells from exposure to radon progeny throughout human bronchial epithelium. The model incorporated current information on nasal and oral filtration efficiencies for unattached radon progeny, characteristics of bronchial deposition by diffusive and inertial processes, mucous clearance and possible transfer of radon progeny to the airway epithelium, locations of target nuclei of secretory and basal cells in different regions of the bronchial tree epithelium, and other features. The model is useful for evaluating absorbed doses to various populations of target cell nuclei, the associated microdosimetric probability densities in specific energy, and the likelihood that target nuclei are hit one or more times by alpha-particle tracks. The model was applied to extrapolating lung cancer risks observed in underground miners to the general population exposed to low-level radon progeny in indoor home environments. The effect of increasing exposure rates by one and two orders of magnitude in both environments was modeled to determine the frequency of radiation events in target cell nuclei. The implications of dosimetric modeling for lung cancer risk analysis were also examined. 28 refs., 5 figs., 5 tabs.
Respiratory Tract Dosimetry
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Author : R. A. Guilmette
language : en
Publisher:
Release Date : 1991
Respiratory Tract Dosimetry written by R. A. Guilmette and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Radiation categories.
Comparative Dosimetry Of Radon In Mines And Homes
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1991-02-01
Comparative Dosimetry Of Radon In Mines And Homes written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991-02-01 with Medical categories.
Studies of underground miners have provided a wealth of data about the risk of lung cancer from exposure to radon's progeny elements, but the application of the miner data to the home environment is not straightforward. In Comparative Dosimetry of Radon in Mines and Homes, an expert committee uses a new dosimetric model to extrapolate to the home environment the risk relationships found in the miner studies. Important new scaling factors are developed for applying risk estimates based on miner data to men, women, and children in domestic environments. The book includes discussions of radon dosimetry and the uncertainties concerning other risk factors such as age and smoking habits. The book also contains a thorough technical discussion of the characteristics of radioactive aerosols in domestic environments, the dose of inhaled radon progeny to different age groups, identification of respiratory tract cells at the greatest risk of carcinogenesis, and a complete description of the new lung dose model being developed by the International Commission on Radiological Protection as modified by this committee.
Environmental Health Perspectives
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Author :
language : en
Publisher:
Release Date : 1993
Environmental Health Perspectives written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Environmental health categories.
Health Risks Of Radon And Other Internally Deposited Alpha Emitters
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Author : National Research Council
language : en
Publisher: National Academies Press
Release Date : 1988-02-01
Health Risks Of Radon And Other Internally Deposited Alpha Emitters written by National Research Council and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-02-01 with Science categories.
This book describes hazards from radon progeny and other alpha-emitters that humans may inhale or ingest from their environment. In their analysis, the authors summarize in one document clinical and epidemiological evidence, the results of animal studies, research on alpha-particle damage at the cellular level, metabolic pathways for internal alpha-emitters, dosimetry and microdosimetry of radionuclides deposited in specific tissues, and the chemical toxicity of some low-specific-activity alpha-emitters. Techniques for estimating the risks to humans posed by radon and other internally deposited alpha-emitters are offered, along with a discussion of formulas, models, methods, and the level of uncertainty inherent in the risk estimates.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1994-02
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-02 with Power resources categories.
Research In Progress Fy 1992
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Author : United States. Department of Energy. Office of Health and Environmental Research
language : en
Publisher:
Release Date : 1993
Research In Progress Fy 1992 written by United States. Department of Energy. Office of Health and Environmental Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Atmospheric physics categories.
Status Of The Food Irradiation Program
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Author : United States. Congress. Joint Committee on Atomic Energy. Subcommittee on Research, Development, and Radiation
language : en
Publisher:
Release Date : 1968
Status Of The Food Irradiation Program written by United States. Congress. Joint Committee on Atomic Energy. Subcommittee on Research, Development, and Radiation and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Food categories.
Hearings And Reports On Atomic Energy
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Author : United States. Congress. Joint Committee on Atomic Energy
language : en
Publisher:
Release Date : 1968
Hearings And Reports On Atomic Energy written by United States. Congress. Joint Committee on Atomic Energy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Nuclear energy categories.
Hearings Reports And Prints Of The Joint Committee On Atomic Energy
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Author : United States. Congress. Joint Committee on Atomic Energy
language : en
Publisher:
Release Date : 1967
Hearings Reports And Prints Of The Joint Committee On Atomic Energy written by United States. Congress. Joint Committee on Atomic Energy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Legislative hearings categories.