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Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/PCDF) in food samples collected in southern Mississippi, USA
University of Bayreuth, Chair of Ecological Chemistry and Geochemistry, Bayreuth, Germany .ORCID iD: 0000-0003-1496-9245
Rutgers University, E.O.H.S.I., Piscataway, USA .
Umeå University, Institute of Environmental Chemistry, Umeå, Sweden .
Umeå University, Institute of Environmental Chemistry, Umeå, Sweden .
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1997 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 34, no 5-7, 1411-1419 p.Article in journal (Refereed) Published
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Text
Abstract [en]

n 1994, we analyzed 43 foodstuff samples from local supermarkets in southern Mississippi, USA, for PCDD/PCDF. 2,3,7,8-Cl4DD could be quantified in 31 of these samples. On a lipid basis, levels in meat (0.53-1.10 pg I-TEQ/g) and dairy products (0.42-1.10 pg I-TEQ/g) were slightly lower than those reported from other industrialized countries. While levels in dairy samples from the United States and Europe are comparable, there is a difference in the contribution of individual congeners to the I-TEQ: for example, in milk samples from Germany approximately 40% of the I-TEQ is due to the presence of 2,3,4,7,8-Cl5DF while in the Mississippi samples this congener only contributes 16%. The highest concentrations of PCDD/PCDF in our study were detected in the farm-raised catfish (10.2-27.8 pg I-TEQ/g). A unique finding was that in addition to the 2,3,7,8-substituted PCDD/PCDF the catfish samples contained many non-2,3,7,8-substituted congeners. This is unusual because vertebrate animals selectively eliminate or metabolize the non-2,3,7,8-substituted congeners.

Place, publisher, year, edition, pages
Elsevier, 1997. Vol. 34, no 5-7, 1411-1419 p.
Keyword [en]
PCDD/PCDF; levels in food; USA; pattern
National Category
Analytical Chemistry Environmental Sciences
Research subject
Analytical Chemistry; Enviromental Science
Identifiers
URN: urn:nbn:se:oru:diva-47647DOI: 10.1016/S0045-6535(97)00438-4ISI: A1997WR67700044PubMedID: 9134675OAI: oai:DiVA.org:oru-47647DiVA: diva2:900802
Conference
15th International Symposium on Chlorinated Dioxins, PCB and Related Compounds, Edmonton, Canada, August 21-25, 1995
Available from: 2016-02-05 Created: 2016-01-19 Last updated: 2016-02-17Bibliographically approved

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