Record Display for the EPA National Library Catalog

RECORD NUMBER: 579 OF 1672

OLS Field Name OLS Field Data
Main Title Evaluation of methodology for determination of polyhalogenated dibenzo-p-dioxins and dibenzofurans in ambient air. {microfiche} /
Author Harless, R. L. ; Lewis, R. G. ; McDaniel, D. D. ; Gibson, J. F. ; Dupuy, A. E.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;National Aeronautics and Space Administration, Bay Saint Louis, MS. John C. Stennis Space Center.
Publisher US Environmental Protection Agency,
Year Published 1991
Report Number EPA/600/D-91/106
Stock Number PB91-196063
Additional Subjects Air pollution sampling ; Air pollution detection ; Dioxins ; Furans ; Metal industry ; Polychlorinated dibenzodioxins ; Polychlorinated dibenzofurans ; Gas chromatography ; Mass spectroscopy ; Quality assurance ; Quality control ; Isotopic labeling ; Solvent extraction ; Polybrominated dibenzodioxins ; Polybrominated dibenzofurans
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB91-196063 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation 10 p.,: ill. ; 28 cm.
Abstract
General Metals Works PS-1 PUF air samplers and an analytical method based on high resolution gas chromatography - high resolution mass spectrometry (HRGC-HRMS) were evaluated for determination of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs/PCDFs) and polybrominated dibenzo-p-dioxins and dibenzofurans (PBDDs/PBDFs) in ambient air. Dilute solutions of these compounds and 13C12-1234-TCDD were used to spike the filters of PS-1 air samplers which were then operated 24 hours to sample 350-400 cu m ambient air. After sampling, each quartz-fiber filter and polyurethane foam (PUF) were spiked with 13C12-labeled PCDD, PCDF, PBDD, and PBDF internal standards before separate Soxhlet extractions with benzene. The extracts were subjected to clean-up procedures using microcolumns of silica gel, alumina and carbon and then analyzed by HRGC-HRMS. Results derived from this study satisfied QA/QC requirements for analytical data and demonstrated that the methodology could accurately determine pg/cu m and sub-pg/cu m levels of these compounds in ambient air. Background levels detected in ambient air are also discussed.
Notes
"EPA 600/D-91/106.