Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Performance of Automated Ambient SO2 Analyzers with Respect to a Proposed 5-Minute Ambient Air Quality Standard.
Author Eaton, W. C. ; Parker, C. D. ; Rickman, E. E. ; McElroy, F. F. ;
CORP Author Research Triangle Inst., Research Triangle Park, NC. Center for Environmental Measurements and Quality Assurance.;Environmental Protection Agency, Research Triangle Park, NC. Aerosol Physics and Methods Branch.
Publisher Nov 91
Year Published 1991
Report Number EPA-68-02-4550; EPA/600/A-92/126;
Stock Number PB92-192178
Additional Subjects Sulfur dioxide ; Air pollution monitors ; Performance evaluation ; Electric devices ; Accuracy ; Air quality ; Air pollution standards ; US EPA ;
Library Call Number Additional Info Location Last
NTIS  PB92-192178 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 08/22/1992
Collation 14p
The U. S. Environmental Protection Agency is considering an additional ambient air quality standard for SO2 that would be based on average SO2 concentration over a 5-minute period. The paper investigates the speed-of-response characteristics of currently used SO2 continuous monitoring instruments and their adequacy for monitoring 5-minute averages. Two analyzers were laboratory-tested to determine their time-response characteristics. Mathematical models of instrument performance were then developed to study measurement accuracy for various short-duration SO2 concentration pulses. These brief experiments indicated that the response of the analyzers tested, which meet the current reference and equivalent method response specifications, was not adequate for monitoring 5 minute averages accurately.