OCDF

AcronymDefinition
OCDFOctachlorodibenzofuran (chemical)
OCDFOur Chinese Daughters Foundation (Bloomington, IL; est. 1995)
OCDFOptical Cable Distributor Fiber
OCDFOBI Continuous Data Feed (financial market data realtime feed; Oslo, Norway)
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The chemical labels are: 1 = 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (HpCDD); 2 = 1,2,3,4,6,7,8,9-octachlorodibenzofuran (OCDF); 3 = 2,2',4,5,5'-pentachlorobiphenyl (PCB101); 4 = 2,2',3,5 -tetrachlorobiphenyl (PCB44); 5 = 2,3,3',4',6-pentachlorobiphenyl (PCB110); 6 = 2,2',5,5'-tetrachlorobiphenyl (PCB52); 7 = 2,3',4,4'- tetrachlorobiphenyl (PCB66); 8 = 2,4,4',5-tetrachlorobiphenyl (PCB74); 9 = 2,2',3,5,5',6-hexachlorobiphenyl (PCB151); 10 = 1-chloro-4-[2,2-dichloro-1-(4-chlorophenyl)ethenyl]benzene (p,p'-DDE); 11 = oxychlordane; 12 = triclosan; 13 = oxypyrimidine; 14 = dimethylthiophosphate; 15 = 2,4-dichlorophenoxyacetic acid; 16 = 2,4-dichlorophenol; 17 = 2,5-dichlorophenol.
Abbreviations: ANA, antinuclear antibodies; HpCDD, heptachlorodibenzo-p-dioxin; HpCDF, heptachlorodibenzofuran; HxCDD, hexachlorodibenzo-p-dioxin; HxCDF, hexachlorodibenzofuran; LOD, limit of detection; OCDD, octachlorodibenzo-p-dioxin; OCDF, octachlorodibenzofuran; PCB, polychlorinated biphenyl; PnCDD, pentachlorodibenzo-p-dioxin; PnCDF, pentachlorodibenzofuran; TCDD, tetrachlorodibenzo-p-dioxin; TCDF, tetrachlorodibenzofuran; TEF, toxic equivalency factor.
Abbreviations: DDE, dichlorodiphenyldichloroethylene; DDT, dichlorodiphenyltrichloroethane; HpCDD, 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin; HpCDF1, 2,3,4,6,7, 8-heptachloro-dibenzofuran; HxCDD, 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin; HxCDF, 1,2,3,4,7,8-hexachlorodibenzofuran; OCDD, octachlorodibenzo-p-dioxin; OCDF, octachlorodibenzofuran; PBDE, polybrominated diphenyl ether; TCDD, 2,3,7, 8-tetrachlorodibenzo-p-dioxin; TCDF, 2,3,7,8-tetrachlorodibenzofuran.
The PCDFs were associated with a decrease in thyroid volume in a similar manner except for two compounds (1,2,3,4,7,8-HxCDF and OCDF).
(2006), whereas the REP for OCDF is an outlier with regard to TEFs.
% (pg/g (milk) Detect (pg/g (serum) Detect lipid milk lipid serum milk) serum) 1,2,3,6,7,8-HxCDD 11.40 33 100 15.00 17 100 1,2,3,4,6,7,8-HpCDD 10.87 34 100 22.60 17 100 OCDD 70.00 34 100 211.0 17 100 2,3,4,7,8-PnCDF 3.81 34 88.2 4.20 17 94.1 1,2,3,4,7,8-HxCDF 1.92 33 93.9 3.30 17 64.7 1,2,3,6,7,8-HxCDF 1.63 33 72.7 3.60 17 76.5 1,2,3,4,6,7,8-HpCDF 2.32 34 97.1 7.40 17 100 OCDF 0.17 34 50 5.30 17 94.1 PCB-126 12.19 34 100 12.00 17 100 PCB-169 7.36 34 100 8.10 17 94.1 Abbreviations: HxCDF, hexachlorodibenzofuran; OCDF, octachlorodibenzofuran; PnCDF, pentachlorodibenzofuran.
However, 6 PCDF congeners had substantial proportions of samples < LOD: 2,3,7,8-tetra-chlorodibenzofuran (TCDF; 68.2%), 1,2,3,7,8-pentachlorinated dibenzofuran (PeCDF; 75.7%), 1,2,3,7,8,9-hexachlorinated dibenzofuran (HxCDF; 99.6%), 2,3,4,6,7,8-HxCDF (56.9%), 1,2,3,4,7,8,9-hepta-chlorinated dibenzofuran (HpCDF; 99.3%), and octachlorinated dibenzofuran (OCDF; 89.6%).
Note that the dose-response model for OCDF was reduced to background (100%) because the slope parameter ([beta]) was not significant (p = 0.84) and the maximum effect parameter was not different from 100%.
Stillborn Formula-fed Breast-fed Compound (n = 3) (n = 8) (n = 9) TCDD 1.6 0.4 1.7 1,2,3,7,8-PentaCDD 3.4 1.1 4.9 1,2,3,4,7,8-HexaCDD 2.5 1.0 4.0 1,2,3,6,7,8-HexaCDD 8.8 4.0 19.9 1,2,3,7,8,9-HexaCDD 1.3 0.7 3.7 1,2,3,4,6,7,8-HeptaCDD 12.9 5.0 25.2 OCDD 51.2 29.1 91.6 2,3,7,8-TCDF 1.4 1.9 1.1 1,2,3,7,8,-PentaCDF 0.2 1.0 0.5 2,3,4,7,8-PentaCDF 9.2 3.1 10.6 1,2,3,4,7,8-HexaCDF 3.7 1.7 3.5 1,2,3,6,7,8-HexaCDF 2.4 1.0 2.8 2,3,4,6,7,8-HexaCDF 1.0 0.2 1.1 1,2,3,7,8,9-HexaCDF 0.1 0.1 0.1 1,2,3,4,6,7,8-HeptaCDF 3.6 1.6 3.8 1,2,3,4,7,8,9-HeptaCDF 0.4 0.1 0.1 OCDF 2.1 1.8 1.6 TEQ 11.9 4.3 15.9 Data from Kreuzer et al.