Relative contributions of individual deposition mechanisms to total aerosol deposition in human airways

I. Balásházy, W. Hofmann, M. Lorinc

Research output: Contribution to journalArticle

Abstract

The present study analyzed the aerosol particle deposition patterns, produced by the separate as well as the simultaneous action of deposition mechanisms (inertial impaction, gravitational settling, Brownian motion, and interception) in characteristic regions of the human airway system as a function of particle size and flow rate. The ratio of local to average deposition densities (enhancement factors) was computed by scanning along th whole surface of the bifurcation with a prespecified surface area element. Results showed that, in general, all deposition patterns caused by any deposition mechanisms are inhomogeneous in human airway bifurcations, both in the upper and lower regions of the human lung. This inhomogeneity usually increases with particle size and flow rate, and decreases with deeper penetration into the respiratory tract.

Original languageEnglish
JournalJournal of Aerosol Science
Volume30
Issue numberSuppl. 1
Publication statusPublished - Sep 1999

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Aerosols
aerosol
bifurcation
Particle size
Flow rate
particle size
Brownian motion
Brownian movement
interception
inhomogeneity
Particles (particulate matter)
penetration
surface area
Scanning
rate

ASJC Scopus subject areas

  • Atmospheric Science
  • Environmental Science(all)

Cite this

Relative contributions of individual deposition mechanisms to total aerosol deposition in human airways. / Balásházy, I.; Hofmann, W.; Lorinc, M.

In: Journal of Aerosol Science, Vol. 30, No. Suppl. 1, 09.1999.

Research output: Contribution to journalArticle

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