Record Display for the EPA National Library Catalog


Main Title Effect of temperature on stability of sulfur dioxide samples collected by the federal reference method /
Author Fuerst, R. G. ; Scaringelli, Frank P. ; Margeson., John H.
Other Authors
Author Title of a Work
Margeson, John H.
Scaringelli, Frank P.
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Quality Assurance Branch.
Publisher Office of Research and Development, Environmental Monitoring and Support Laboratory, U.S. Environmental Protection Agency,
Year Published 1976
Report Number EPA-600/4-76-024
Stock Number PB-253 778
OCLC Number 19062541
Subjects Air--Pollution--Measurement ; Sulfur dioxide ; Sulphur dioxide
Additional Subjects Sulfur dioxide ; Gas analysis ; Concentration(Composition) ; Temperature ; Stability ; Sampling ; Air pollution ; Reaction kinetics ; Mathematical models ; Air pollution sampling ; Air quality
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJED  EPA 600/4-76/024 OCSPP Chemical Library/Washington,DC 02/11/2005
EKBD  EPA-600/4-76-024 Research Triangle Park Library/RTP, NC 07/25/2003
ELBD ARCHIVE EPA 600-4-76-024 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ESAD  EPA 600-4-76-024 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-253 778 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vii, 23 p. ; 28 cm.
This report describes an evaluation of the effect of temperature on the stability of samples collected according to the Environmental Protection Agency procedure for measurement of ambient sulfur dioxide. This evaluation was carried out over the range 35 to 278 micrograms per cubic meter of air sampled. Collected samples were found to decay at a critical temperature-dependent rate. The rate of decay increases five-fold for every 10 degree centigrade increase in temperature over the range 20 to 40 degrees. The rate of decay is independent of concentration over the range studied, and the decay reaction follows first-order kinetics. A mathematical model was developed that allows sample decay to be calculated if the temperature history of the sample is known. Temperature specifications and changes in the procedures necessary to eliminate the decay problem are proposed.
"May 1976."