Record Display for the EPA National Library Catalog


Main Title Comparison of Portable Gas Chromatographs and Passivated Canisters for Field Sampling Airborne Toxic Organic Vapors in the United States and the USSR.
Author Berkley, R. E. ; Varns, J. L. ; Pleil., J. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/191;
Stock Number PB91-233544
Additional Subjects Air pollution monitoring ; Gas chromatography ; Portable equipment ; Comparison ; Air sampling ; United States ; USSR ; Stationary sources ; Performance evaluation ; Organic compounds ; Toxic substances ; Reprints ; Passivated canisters
Library Call Number Additional Info Location Last
NTIS  PB91-233544 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Collection of samples in passivated canisters is widely used for analysis of trace volatile organic compounds in air because a preconcentration step is usually required prior to analysis. Sample integrity can be compromised by deterioration or artifact formation during storage and preconcentration. A laboratory-tested portable gas chromatograph (PGC) equipped with a highly-sensitive photoionization detector (PID) offers the advantage of near real-time data without preconcentration, but its limitations as a field-portable instrument must be recognized. The paper presents data produced simultaneously by the Canister/TO-14 method and PGCs. They were obtained in U.S. and overseas field studies, at industrial, hazardous waste, and roadway sites. Field results suggest that a combination of canister and PGC methods offers a synergistic approach to source assessment measurements.