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Main Title Application guide for measurement of PM2.5 at stationary sources /
Author Dawes, Sherry S. ; Farthing, W. E.
Other Authors
Author Title of a Work
Farthing, William E.
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 1990
Report Number EPA/600/3-90/057; EPA-68-02-4442
Stock Number PB90-247198
Subjects Air--Pollution--Measurement
Additional Subjects Guidelines ; Particles ; Manuals ; Combustion products ; Particle size ; Continuous sampling ; Sites ; Concentration(Composition) ; Design criteria ; Performance evaluation ; Flow rate ; Centrifuges ; Numerical analysis ; Data processing ; Stationary sources ; Air pollution sampling ; Air samplers ; Stacks
Library Call Number Additional Info Location Last
NTIS  PB90-247198 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 106 pages ; 30 cm
The manual presents two options which allow determination of stationary source PM2.5 to be measured in conjunction with PM10 and it can be measured as PM2.5 only. When determining both PM2.5 and PM10, either the Constant Sampling Rate (CSR) procedures or the Exhaust Gas Recycle (EGR) sampling system can be used. When PM2.5 is the only size fraction of interest the CSR procedures are selected. The application guide should be used as a companion to the application guides for CSR and EGR. Stack gas is sampled at multiple points using an in-stack inertial sampler with a constant flow rate. For PM2.5 measurements only, the maximum allowable error due to anisokinetic sampling is + or -10% for 2.5 micrometer particles. The range of duct velocities permitted for a nozzle with this maximum allowable error is broad enough that rarely is it necessary to break a traverse into subtraverses with different sampling nozzles. The sampling device described in the manual is Cyclone IV of the SRI/EPA five-stack series cyclone. This device provides a 2.5 micrometer size cut at a flow rate of approximately 0.36 dscfm; the precise flow rate depends on local stack conditions. These procedures specify the precise flow rate for PM2.5 separately and PM10 when the described cyclone particle sizers are used.
"EPA/600/3-90/057." "July 1990." Microfiche.