Comparative analysis of polychlorinated dibenzo-p-dioxin and dibenzofuran congeners in Great Lakes fish extracts by gas chromatography-mass spectrometry and in vitro enzyme induction activities

Several 2,3,7,8-polychlorinated dibenzofurans (PCDF) and dibenzo-p-dioxins (PCDD) were identified. In extracts from Michigan, Erie, St. Clair, Huron, and Superior lakes, the dominant congener was 2,3,7,8-tetrachlorodibenzofuran. Besides considerable amounts of PCDF, fish extracts from Ontario lake c...

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Veröffentlicht in:	Environmental science & technology 1989-06, Vol.23 (6), p.730-735
Hauptverfasser:	Zacharewski, Timothy, Safe, Lorna, Safe, Stephen, Chittim, Brock, DeVault, David, Wiberg, Karin, Bergqvist, Per Anders, Rappe, Christoffer
Format:	Artikel
Sprache:	eng
Schlagworte:	Agnatha. Pisces Animal, plant and microbial ecology Applied ecology Biological and medical sciences Ecotoxicology, biological effects of pollution Effects of pollution and side effects of pesticides on vertebrates Fundamental and applied biological sciences. Psychology Pisces
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Zusammenfassung:	Several 2,3,7,8-polychlorinated dibenzofurans (PCDF) and dibenzo-p-dioxins (PCDD) were identified. In extracts from Michigan, Erie, St. Clair, Huron, and Superior lakes, the dominant congener was 2,3,7,8-tetrachlorodibenzofuran. Besides considerable amounts of PCDF, fish extracts from Ontario lake contained significant concentrations of 2,3,7,8-tetrachlorobenzo-p-dioxin. Bioassay-derived values for Erie lake and Ontario lake fish extracts were more than two-fold higher than those obtained by gas chromatography-mass spectrometry. Reasons for this are suggested.
ISSN:	0013-936X 1520-5851
DOI:	10.1021/es00064a012