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A Semiempirical model for Particle Deposition onto Facial Skin and Eyes. Role of Air Currents and Electric Fields

Schneider, Thomas; Gudmundsson, Anders LU and Bohgard, Mats LU (1994) In Journal of Aerosol Science 25(3). p.583-593
Abstract
A semiempirical model has been developed for deposition velocity of particles on the forehead and eyes. It is based on published results of wind tunnel studies of deposition of 2-32 μm airborne particles onto the forehead and realistically-shaped eyes of a manikin. The effects of electric fields and particle charges were included in the model on a purely theoretical basis. The model was used to calculate the combined effects of air currents and electric fields, and it was found that electric fields and particle charges are major determinants for deposition of particles approximately 1 μm in diameter, and air turbulence likely to occur in ventilated rooms is a major determinant for particles larger than 10 μm. The model predicts that... (More)
A semiempirical model has been developed for deposition velocity of particles on the forehead and eyes. It is based on published results of wind tunnel studies of deposition of 2-32 μm airborne particles onto the forehead and realistically-shaped eyes of a manikin. The effects of electric fields and particle charges were included in the model on a purely theoretical basis. The model was used to calculate the combined effects of air currents and electric fields, and it was found that electric fields and particle charges are major determinants for deposition of particles approximately 1 μm in diameter, and air turbulence likely to occur in ventilated rooms is a major determinant for particles larger than 10 μm. The model predicts that deposition of particles from typical indoor environments will be enhanced for persons exposed to electric fields, irrespective of the direction of the field. For a complete characterization, particle concentration, size distribution, mean air velocity, direction and turbulence intensity, electric fields and particle charge distribution should be known. For investigators of exposure to airborne particles and its relation to the office eye syndrome, the model can be used for identifying those parameters which are key for given conditions, thus simplifying the description of exposure. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
eye deposition, aerosol
in
Journal of Aerosol Science
volume
25
issue
3
pages
583 - 593
publisher
Elsevier
external identifiers
  • Scopus:0028410374
ISSN
0021-8502
language
English
LU publication?
yes
id
fd57c9a3-16f9-482b-a763-c12093af8b63 (old id 798662)
date added to LUP
2008-02-20 16:01:54
date last changed
2016-04-16 12:28:28
@misc{fd57c9a3-16f9-482b-a763-c12093af8b63,
  abstract     = {A semiempirical model has been developed for deposition velocity of particles on the forehead and eyes. It is based on published results of wind tunnel studies of deposition of 2-32 μm airborne particles onto the forehead and realistically-shaped eyes of a manikin. The effects of electric fields and particle charges were included in the model on a purely theoretical basis. The model was used to calculate the combined effects of air currents and electric fields, and it was found that electric fields and particle charges are major determinants for deposition of particles approximately 1 μm in diameter, and air turbulence likely to occur in ventilated rooms is a major determinant for particles larger than 10 μm. The model predicts that deposition of particles from typical indoor environments will be enhanced for persons exposed to electric fields, irrespective of the direction of the field. For a complete characterization, particle concentration, size distribution, mean air velocity, direction and turbulence intensity, electric fields and particle charge distribution should be known. For investigators of exposure to airborne particles and its relation to the office eye syndrome, the model can be used for identifying those parameters which are key for given conditions, thus simplifying the description of exposure.},
  author       = {Schneider, Thomas and Gudmundsson, Anders and Bohgard, Mats},
  issn         = {0021-8502},
  keyword      = {eye deposition,aerosol},
  language     = {eng},
  number       = {3},
  pages        = {583--593},
  publisher    = {ARRAY(0x90527c8)},
  series       = {Journal of Aerosol Science},
  title        = {A Semiempirical model for Particle Deposition onto Facial Skin and Eyes. Role of Air Currents and Electric Fields},
  volume       = {25},
  year         = {1994},
}