The effect of the air velocity on the collection efficiency of microorganisms by impaction method

Author

Tabet, A. ; El-Gemayel, C. ; Msaed, A. ; Sabra, M.N. ; El Dib, G.

Author_Institution

Appl. Phys. Lab. (LPA), Lebanese Univ., Fanar, Lebanon

fYear

2013

fDate

11-13 Sept. 2013

Firstpage

231

Lastpage

234

Abstract

The effect of the air velocity on the collection efficiency of microorganisms was examined in this work. The study was carried out using a bio impactor developed and validated in our laboratory. Six sampling sites were chosen to perform measurements at different air velocities (5m/s, 10m/s and 20m/s). Before measurements, the air velocity was calculated and modified by varying the aspiration flow and the nozzle diameter of the used device. The air velocity of 20m/s was found to yield the maximum of collection efficiency. The experiments and results are described and discussed in the paper.

Keywords

aerodynamics; air; biological specimen preparation; biological techniques; microorganisms; nozzles; air velocity calculation; air velocity effect; air velocity modification; air velocity variation; aspiration flow variation; bioimpactor development; bioimpactor validation; impaction method; maximum microorganism collection efficiency; microorganism measurement; nozzle diameter variation; sampling site; velocity 10 m/s; velocity 20 m/s; velocity 5 m/s; Aerosols; Atmospheric measurements; Fungi; Laboratories; Microorganisms; Pollution measurement; Velocity measurement; Air velocity; Bio-Impactor; Collection Efficiency; Microorganisms; Viable Particles;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Biomedical Engineering (ICABME), 2013 2nd International Conference on

Conference_Location

Tripoli

Print_ISBN

978-1-4799-0249-1

Type

conf

DOI

10.1109/ICABME.2013.6648890

Filename

6648890