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Measurement of the physical decay of aerosols by a light scatter method compared to a radioactive tracer method*

Published online by Cambridge University Press:  15 May 2009

Robert L. Dimmick
Robert L. Dimmick
Affiliation:
Naval Biological Laboratory, School of Public Health, University of California, Berkeley, California
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The physical behaviour of aerosols atomized into stirred settling chambers, or into rotating drums, was examined by a radioactive tracer method and by a light scatter method. With suitable corrections, there was no difference between the two methods of measuring of physical decay. The tracer method is advantageous in that the data so obtained are on an absolute basis, whereas data from scattered light measurements are relative. The latter method, however, is less time consuming, provides an immediate notification of instrument performance and does not require that material be removed from the aerosol chamber for sampling purposes.

Type
Research Article
Information
Journal of Hygiene , Volume 58 , Issue 4 , December 1960 , pp. 373 - 379
Copyright
Copyright © Cambridge University Press 1960

References

Bunting, M. I. (1940). A description of some colour variants produced by Serratia marcescens strain 274. J. Bacteriol. 40, 57.CrossRefGoogle ScholarPubMed
Dimmick, R. L., Hatch, M. T. & Ng, J. (1958). Particle sizing method for aerosols and fine powders. A.M.A. Arch. Ind. Health, 18, 23.Google Scholar
Goldberg, L. J., Watkins, H. M. S., Boerke, E. E. & Chatigny, M. A. (1958). The use of a rotating drum for the study of aerosols over extended periods of time. Amer. J. Hyg. 68, 85.Google Scholar
Harper, G. J., Hood, A. M. & Morton, J. D. (1958). Airborne micro-organisms: A technique for studying their survival. J. Hyg., Camb., 56, 364.CrossRefGoogle ScholarPubMed
Kethley, T. W., Fincher, E. L. & Cown, W. B. (1957). The effect of sampling method upon the apparent response of airborne bacteria to temperature and relative humidity. J. infect. Dis. 100, 97.Google Scholar
O'Konski, C. T. & Doyle, G. J. (1955). Light scattering studies in aerosols with new counter-photometer. Anal. Chem. 27, 694.Google Scholar