Record Display for the EPA National Library Catalog

RECORD NUMBER: 19 OF 343

OLS Field Name OLS Field Data
Main Title Aerodynamic Size Measurement of Airborne Fibers and Health Effects Implications.
Author Martonen., T. B. ;
CORP Author Health Effects Research Lab., Research Triangle Park, NC. Environmental Toxicology Div.
Publisher 1992
Year Published 1992
Report Number EPA/600/J-94/211;
Stock Number PB94-163904
Additional Subjects Fibers ; Mathematical models ; Kinetics ; Air pollution effects(Humans) ; Aerosols ; Centrifuges ; Spectrometers ; Aerodynamic characteristics ; Particle size distribution ; Particle shape ; Risk assessment ; Deposition ; Respiratory diseases ; Industrial hygiene ; Asbestos ; Occupational exposure ; Performance evaluation ; Ceramic fibers ; Glass fibers ; Reprint ; Inhaled particles ; PBPK modeling
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-163904 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 09/01/1994
Collation 12p
Abstract
The constituent particles of many ambient and workplace aerosols of health effects concerns are of fibrous and aggregate geometric shapes. A theoretical model has been developed which predicts that natural and synthetic fibers may be preferentially deposited at lung airway bifurcations. Therefore, to assess potential exposure hazards it is necessary to have accurate kinetic classifications of airborne particulate matter. Centrifugal spectrometers can give direct and continuously graded measures of the aerodynamic size distributions of sampled aerosols. Herein, a mathematical description of centrifuge operations is refined to permit the characterization of irregularly shaped particles, with specific application to fibers. (Copyright (c) 1992 VSP and Society of Powder Technology, Japan.)