caa a22 4500 46798798X CHVBK 20180323112537.0 cr unu---uuuuu 170328e19901201xx s 000 0 eng 10.1007/BF02539115 doi (NATIONALLICENCE)springer-10.1007/BF02539115 Radon dosimetry applications of in vitro tracheobronchial-deposition measurements [Elektronische Daten] [Ted Martonen, Werner Hofmann] Summary: Deposition efficiencies of monodisperse ammonium fluorescein aerosols have been measured in simulated human lungs made of replica laryngeal casts combined with trachebronchial systems. Other tests, with radiolabelled submicron-sized particles, combined the larynges with replica tracheobronchial casts. The laryngeal casts had internal flow rate-specific geometries. Data indicate thatin vitro bifurcations have <<hot spots>> or highly localized deposits, particularly at carinal ridges, suggesting that epithelial cells at airway branching sitesin vitro receive increased exposures to inhaled particulate matter. For dosimetry purposes, therefore, the lung should be likened to a series of Y-shaped airway junctures. The data have risk assessment applications for ambient radon progeny and radioactive airborne particles found in uranium mining and milling operations. Kluwer Academic Publishers, 1990 aerosols nationallicence deposition nationallicence lung nationallicence Martonen Ted Effects Research Laboratory, U.S. Environmental Protection Agency, 2771, Research Triangle Park, NC, U.S.A. aut Hofmann Werner Department of Biophysics, University of Salzburg, A-5020, Salzburg, Austria aut Aerobiologia Kluwer Academic Publishers 6/2(1990-12-01), 197-201 0393-5965 6:2<197 1990 6 10453 https://doi.org/10.1007/BF02539115 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02539115 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Martonen Ted Effects Research Laboratory, U.S. Environmental Protection Agency, 2771, Research Triangle Park, NC, U.S.A aut NATIONALLICENCE 700 1- Hofmann Werner Department of Biophysics, University of Salzburg, A-5020, Salzburg, Austria aut NATIONALLICENCE 773 0- Aerobiologia Kluwer Academic Publishers 6/2(1990-12-01), 197-201 0393-5965 6:2<197 1990 6 10453 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer