Research Papers

Characteristics of Airborne Particles

[+] Author and Article Information
T. A. Rich

Instrumentation, Engineering Physics and Analysis Laboratory, General Electric Company, Schenectady, N. Y.

J. Eng. Power 81(1), 7-11 (Jan 01, 1959) (5 pages) doi:10.1115/1.4007993 History: Received April 01, 1957; Published January 01, 1959; Online February 20, 2019


Airborne particulates are primarily responsible for the visible effects of air pollution and contribute appreciably to the total mass of pollutants. A substantial fraction of the particulates is submicroscopic so optical methods are not suitable for following their life history. Techniques for measuring number and average size of submicroscopic particles over wide ranges have been developed but are not widely known or used outside the laboratory. A review is given here of some of the more useful parameters of particles and methods by which these can be measured.

Copyright © 1959 by ASME
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