||Dosimetry of Localized Accumulations of Cigarette Smoke and Radon Progeny at Bifurcations.
Martonen, T. B. ;
Hofmann, W. ;
||Health Effects Research Lab., Research Triangle Park, NC. Environmental Toxicology Div. ;Salzburg Univ. (Austria). Dept. of Biophysics.
Risk assessment ;
Bronchial neoplasms ;
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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.