||Collection Efficiency of Field Sampling Cassettes: Interagency Energy/Environment R and D Program Report.
Fairchild, C. I. ;
Tillery, M. I. ;
Smith, J. P. ;
Valdez, F. O. ;
||Los Alamos Scientific Lab., NM.;Environmental Protection Agency, Washington, DC. Office of Environmental Processes and Effects Research.;National Inst. for Occupational Safety and Health, Cincinnati, OH.;Department of Energy, Washington, DC.
||LA-8640-MS; W-7405-eng-36; EPA-600/7-81-145;
Air pollution ;
Error analysis ;
Air filters ;
Industrial hygiene ;
Air pollution sampling ;
Indoor air pollution
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Industrial hygiene particulate samples are often collected under anisokinetic sampling conditions and in crosswinds. Experiments were conducted to quantitate errors associated with sampling under these non-ideal conditions. Three types of field sampling cassetts were tested to determined particle sampling efficiencies for 0,2, and 5 m/s winds at incidence angles of 0, 90 and 180. Sampling efficiencies were compared to theoretical values calculated from Belyaev and Levin's theory, and Davies' modification for calm air sampling.