Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Multi-Site Evaluations of Candidate Methodologies for Determining Coarse Particulate Matter (PM(sub10-2.5)) Concentrations: August 2005 Updated Report Regarding Second-Generation and New PM(sub 10-2.5) Samplers.
Author Vanderpool, R. W. ; Hanley, T. D. ; Dimmick, F. ; Hunike, E. ; Solomon, P. ;
CORP Author RTI International, Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC.
Publisher Sep 2006
Year Published 2006
Report Number EPA/600/R-06/093; NERL-RTP-HEASD-05-092;
Stock Number PB2006-115765
Additional Subjects Air pollution monitoring ; Concentration(Composition) ; Performance evaluation ; Sampling methods ; Ambient air ; Samplers ; Site characteristics ; Particle sampling ; Coarse particulate matter ; Multi-site evaluations
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB2006-115765 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 05/28/2007
Collation 56p
Field studies were conducted to evaluate the performance of sampling methods for measuring the coarse fraction of PM(sub 10)(PM(sub 10-2.5)) in ambient air. In the first stage of this evaluation, both time-integrated filter-based and direct continuous methods were evaluated. As the primary basis of comparison upon which to evaluate the candidate coarse fraction sampling methods, the PM(sub 10-2.5) concentration was estimated by taking the difference between concentrations measured with a PM(sub 10) FRM sampler and a PM(sub 2.5) FRM sampler. Sampling sites in Gary, IN, Phoenix, AZ, and Riverside, CA were selected to provide diverse challenges to the samplers with respect to aerosol concentration, size distribution, and composition. The first performance evaluations were conducted during 2003 and 2004. Instrument manufacturers were provided the results of these studies and encouraged to revise their PM(sub 10-2.5) samplers to address the measurement uncertainties identified. EPA conducted a follow-on field study of these second-generation samplers in Phoenix, AZ during April and May, 2005. The 2005 field study also evaluated four new prototype samplers designed to measure ambient PM(sub 10-2.5) aerosols. Two of these newer samplers were time-integrated, filter-based designs, and two were continuous-measurement designs. Despite operational problems encountered with some of the instruments during this phase of the testing, overall measurement results were encouraging and the instrument manufacturers are continuing to improve the reliability of the coarse mode samplers.