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RECORD NUMBER: 7 OF 26

OLS Field Name OLS Field Data
Main Title Evaluation of an EPA high-volume air sampler for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans.
Author DeRoos, F. L. ; Tabor, J. E. ; Miller, S. E. ; Watson, S. C. ; Hatchel, J. A.
Other Authors
Author Title of a Work
DeRoos, F. L.
CORP Author Battelle Columbus Div., OH.;Environmental Monitoring Systems Lab., Research Triangle Park, NC.
Publisher Environmental Monitoring Systems Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1986
Report Number EPA/600/4-86/037; EPA-68-02-4127
Stock Number PB87-129805
Subjects Air--Pollution--Measurement. ; Organochlorine compounds.
Additional Subjects Air pollution control equipment ; Concentration(Composition) ; Performance ; Design ; Silica gel ; Air samplers ; Polychlorinated dibenzofurans ; Polychlorinated dibenzodioxins
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB87-129805 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 36 pages ; 28 cm
Abstract
A High-Volume air sampler was evaluated for collection of poly-chlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF). The sampler consists of a filter, polyurethane foam adsorbent cartridge, air pump, and environmental housing. The use of an alternative adsorbent, silica gel, was also studied. The study was carried out using 1,2,3,4-tetra-chlorodibenzo-p-dioxin, 1,2,4,8-tetrachlorodibenzofuran, 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin 1,2,3,6,7,8-hexachlorodibenzofuran, octachlorodibenzo-p-dioxin, and octachlorodibenzofuran. The overall average retention efficiency for all of the isomers at two concentration levels was 99 percent for both the PUF and the silica gel adsorbents. The desorption efficiency of the PCDD/PCDF isomers from spiked filters was evaluated to assess the extent of migration of these compounds from the filter to the adsorbent. Migration was dependent upon the isomers' chlorination level with the less chlorinated, more volatile isomers generally desorbing more efficiently.
Notes
"December 1986." "Contract Number 68-02-4127." Microfiche.