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Dosimetry of localized accumulations of cigarette smoke and radon progeny at bifurcations

Technical Report ·
OSTI ID:5267919
;
The work focuses upon deposition and clearance processes affecting cigarette smoke particles and radon progeny within surrogate airway models, replica casts and the human lung. As shall be demonstrated, 'cloud motion' for mainstream cigarette smoke can produce locations of enhanced deposition not experienced with dilute aerosols composed of like-sized particles. These sites of concentrated deposits occur at airway bifurcations, especially at the inclusive carinal ridges.
Research Organization:
Health Effects Research Lab., Research Triangle Park, NC (United States). Environmental Toxicology Div.
OSTI ID:
5267919
Report Number(s):
PB-92-164847/XAB; EPA--600/J-92/114
Country of Publication:
United States
Language:
English

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Related Subjects

560101* -- Biomedical Sciences
Applied Studies-- Radiation Effects-- Dosimetry & Monitoring-- (1992-)
61 RADIATION PROTECTION AND DOSIMETRY
ANIMALS
BIOLOGICAL MODELS
BODY
CLEARANCE
DAUGHTER PRODUCTS
DOSIMETRY
ELEMENTS
EXCRETION
FLUIDS
GASES
ISOTOPES
LUNG CLEARANCE
LUNGS
MAMMALS
MAN
NONMETALS
ORGANS
PRIMATES
RADIONUCLIDE KINETICS
RADON
RARE GASES
RESPIRATORY SYSTEM
RISK ASSESSMENT
VERTEBRATES