title: Determination of polychlorinated dibenzo-p-dioxin and dibenzofuran congeners in air particulate and marine sediment standard reference materials (SRMs).
abstract: Due to the limited number of environmental matrix certified reference materials (CRMs) with assigned values for natural levels of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), an interlaboratory study was undertaken by the National Institute of Standards and Technology (NIST) and Environment Canada to establish reference concentration values for selected PCDD/Fs in two well-characterized NIST Standard Reference Materials (SRMs): SRM 1649a (Urban Dust) and SRM 1944 (New York/New Jersey Waterway Sediment). Results from 14 laboratories were used to provide reference values for the seventeen 2, 3, 7, 8-substituted PCDD/F congeners, the totals for individual tetra- through hepta-substituted PCDD/F homologues, and the total amount of tetra- through hepta-substituted PCDD/Fs. The mass fractions for the individual 2, 3, 7, 8-substituted congeners range from approximately 0.01 microg/kg to 7 microg/kg dry mass.
authors: Analysis and Air Quality Division, Environmental Technology Centre, Environment Canada, Ottawa, Ontario.
authors: C H
authors: CH
authors: Chiu
authors: R
authors: R
authors: Turle
authors: G
authors: G
authors: Poole
authors: B
authors: B
authors: Thibert
authors: W W
authors: WW
authors: Brubaker
authors: M M
authors: MM
authors: Schantz
authors: S A
authors: SA
authors: Wise
mesh_terms: D000395:Air Pollutants, Occupational / Q000032:analysis*; D001572:Benzofurans / Q000032:analysis*; D002170:Canada; D000072338:Dibenzofurans, Polychlorinated; D004784:Environmental Monitoring / Q000592:standards; D019015:Geologic Sediments / Q000032:analysis*; D013058:Mass Spectrometry / Q000379:methods; D009515:New Jersey; D009518:New York; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis*; D012016:Reference Values; D012623:Seawater; D012680:Sensitivity and Specificity; D014504:Urban Health
chemical_list: D000395:Air Pollutants, Occupational; D001572:Benzofurans; D000072338:Dibenzofurans, Polychlorinated; D000072317:Polychlorinated Dibenzodioxins