Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 22

OLS Field Name OLS Field Data
Main Title Optical Method for Measuring the Mass Concentration of Particulate Emissions.
Author Markowski, Gregory R. ; Woffinden, George J. ; Ensor., David S. ;
CORP Author Meteorology Research, Inc., Altadena, Calif.;Environmental Sciences Research Lab., Research Triangle Park, N.C.
Year Published 1976
Report Number MRI75-FR-1379; EPA-68-02-1749; EPA/600/2-76/062;
Stock Number PB-255 093
Additional Subjects Particles ; Optical measuring instruments ; Laboratory equipment ; Light scattering ; Concentration(Composition) ; Aerosols ; Particle size ; Air pollution ; Refractivity ; Performance evaluation ; Transmissometers ; Monitoring ; Weight(Mass) ; Stationary sources ; Air pollution detection ; Scatometers
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-255 093 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 96p
Abstract
The objective of this study is to demonstrate the feasibility of an in-situ across-the-stack optical technique to measure the mass of particulate emissions from stationary sources. The technique uses small angle light scattering and transmittance to determine a quantity closely related to particulate mass concentration. The forward scattered light is measured at an angle of 1 deg or less. The technique has been investigated both theoretically using Mie theory, and experimentally using aerosols produced in the laboratory. The experimental results agree with the theoretical predictions and indicate that the method is relatively insensitive to changes in aerosol parameters such as particle size, refractive index, and shape.