A technique to expose animals to concentrated fine ambient aerosols.
C Sioutas, P Koutrakis, RM Burton - Environmental health …, 1995 - ehp.niehs.nih.gov
This paper presents the development and evaluation of an ambient particle concentrator for
conducting animal inhalation exposure studies. The system utilizes the principle of virtual
impactors to concentrate ambient particles in the size range 0.1-2.5 microns (aerodynamic
diameter; dp) by drawing them through a series of three virtual impactors. Each impactor
contains the majority of ambient fine mass (dp< 2.5 microns aerodynamic diameter) in a
bleed flow (minor flow) that is 20% of the total flow entering the virtual impactor. The virtual …
conducting animal inhalation exposure studies. The system utilizes the principle of virtual
impactors to concentrate ambient particles in the size range 0.1-2.5 microns (aerodynamic
diameter; dp) by drawing them through a series of three virtual impactors. Each impactor
contains the majority of ambient fine mass (dp< 2.5 microns aerodynamic diameter) in a
bleed flow (minor flow) that is 20% of the total flow entering the virtual impactor. The virtual …