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Main Title Development of sampling methods for source PM10 emissions /
Author Williamson, Ashley D. ; Farthing, W. E. ; Dawes, S. S. ; McCain, J. D. ; Martin, R. S.
Other Authors
Author Title of a Work
Williamson, Ashley D.
CORP Author Southern Research Inst., Birmingham, AL.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher U.S. Environmental Protection Agency, Atmospheric Research and Exposure Assessment Laboratory,
Year Published 1989
Report Number EPA/600/3-88/056
Stock Number PB89-190375
Subjects Air--Pollution--Measurement
Additional Subjects Chimneys ; Particle size ; Combustion products ; Experimental design ; Field tests ; Performance evaluation ; Cyclone separators ; Nozzles ; Error analysis ; Air pollution sampling ; Particulate sampling ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB89-190375 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 192 pages ; 28 cm
The report describes an investigation of the needs and available techniques for in-stack PM-10 sampling. Discussion includes the conceptualization, development, documentation, and testing of two candidate methods. The first method, Constant Sampling Rate (CSR), is a procedural approach which adds particle size separation to sampling hardware that has been widely used in EPA Methods 5 and 17 but modifies the sampling protocol to accomplish the PM-10 objectives. The second method, Exhaust Gas Recycle (EGR), is an equipment approach which accomplishes the PM-10 objectives by using a modified sampling train to implement the concept of exhaust gas recirculation. Six field studies indicated that these techniques were practical and compared well with one another and with more labor-intensive approaches. Laboratory investigations with monodisperse aerosols indicated that commonly used geometries for sampling nozzles could cause a decrease in the particle size out of a closely coupled inertial sizing device. Nozzle geometries were also found which eliminated the observed shifts in particle size cut.
"EPA/600/3-88/056." "Contract no. CR-812274." "April 1989." Includes bibliographical references. Microfiche.