Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title First Measurements of Aerosol Particle Charging by Free Electrons - A Preliminary Report.
Author DuBard, J. L. ; McDonald, J. R. ; Sparks, L. E. ;
CORP Author Southern Research Inst., Birmingham, AL.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Year Published 1983
Report Number EPA-600/J-83-196;
Stock Number PB84-177534
Additional Subjects Particles ; Aerosols ; Free electrons ; Charging ; Air pollution ; Fines ; Change measuring instruments ; Particle size ; Ions ; Charged particles ; Electric fields ; Reprints ;
Library Call Number Additional Info Location Last
NTIS  PB84-177534 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 9p
The article describes the first-time isolation and measurement of the charging of fine aerosol particles by free electrons, from negative ionic charging. The charge and size of individual particles were measured in a Millikan cell, with charging electric field of 0.82 - 8.2 kV/cm. For particle sizes of 1.1 - 1.7 micrometer diameter, the particle charge values were much larger, and increased faster with particle size, than those predicted and observed for negative ionic charging. The particle charge values showed only slight dependence on the charging electric field. (Copyright (c) 1983 Pergamon Press Ltd.)