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Polychlorinated dib...
Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/PCDF) in food samples collected in southern Mississippi, USA
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- Fiedler, Heidelore, 1953- (författare)
- University of Bayreuth, Chair of Ecological Chemistry and Geochemistry, Bayreuth, Germany
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- Cooper, K. R. (författare)
- Rutgers University, E.O.H.S.I., Piscataway, USA
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- Bergek, S. (författare)
- Umeå University, Institute of Environmental Chemistry, Umeå, Sweden
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- Hjelt, M. (författare)
- Umeå University, Institute of Environmental Chemistry, Umeå, Sweden
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- Rappe, C. (författare)
- Umeå University, Institute of Environmental Chemistry, Umeå, Sweden
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University of Bayreuth, Chair of Ecological Chemistry and Geochemistry, Bayreuth, Germany Rutgers University, EO.H.S.I., Piscataway, USA (creator_code:org_t)
- Elsevier, 1997
- 1997
- Engelska.
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Ingår i: Chemosphere. - : Elsevier. - 0045-6535 .- 1879-1298. ; 34:5-7, s. 1411-1419
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Kemi -- Analytisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Analytical Chemistry (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- PCDD/PCDF; levels in food; USA; pattern
- Analytisk kemi
- Analytical Chemistry
- Enviromental Science
- Miljövetenskap
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