| 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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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. |
