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PCDD and PCDF conta...
PCDD and PCDF contamination in catfish feed from Arkansas, USA
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- Rappe, Christoffer (författare)
- Institute of Environmental Chemistry, Umeå University, Umeå, Sweden
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- Bergek, Sture (författare)
- Institute of Environmental Chemistry, Umeå University, Umeå, Sweden
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- Fiedler, Heidelore, 1953- (författare)
- University of Bayreuth, Ecological Chemistry and Geochemistry, Bayreuth, Germany
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- Cooper, Keith R. (författare)
- Rutgers University, Cook College, New Brunswick, NJ, USA
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(creator_code:org_t)
- Elsevier, 1998
- 1998
- Engelska.
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Ingår i: Chemosphere. - : Elsevier. - 0045-6535 .- 1879-1298. ; 36:13, s. 2705-2720
- 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
- One combined catfish feed sample from Arkansas, USA, and its eight ingredients were analyzed for PCDDs and PCDFs. One of the ingredients, soybean meal, was highly contaminated by PCDDs, especially the toxic 2,3,7,8-substituted congeners, e.g. 7.3 pg/g dry weight or 370 pg/g lipid for the 2,3,7,8-tetra CDD. The I-TEQ value for the soybean meal was 11.4 pg/g dry weight or 576 pg/g fat. The corresponding values for the combined catfish feed concentrations were approximately 3 times lower. The congener pattern, the congener profile and the ratio Sigma PCDDs/Sigma PCDFs for the soybean meal were quite unique. We are not aware of any environmental sample or technical product with similar characteristics. As a result, natural formation of the PCDDs found in the soybean meal cannot be ruled out.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Nyckelord
- catfish; catfish feed; soybean meal; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; 2
- 3
- 7
- 8-substitution; toxic equivalents; Arkansas; USA
- Kemi
- Chemistry
- Enviromental Science
- Miljövetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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