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PCDD, PCDF, and PCB...
PCDD, PCDF, and PCB in farm-raised catfish from southeast United States - Concentrations, sources, and CYP1A induction
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- Fiedler, Heidelore, 1953- (författare)
- University of Bayreuth, Ecological Chemistry and Geochemistry, Bayreuth, Germany
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- Cooper, K. (författare)
- Rutgers University, Cook College, New Brunswick, USA
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- Bergek, S. (författare)
- Institute of Environmental Chemistry, Umeå University, Umeå Sweden
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- Hjelt, M. (författare)
- Institute of Environmental Chemistry, Umeå University, Umeå Sweden
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- Rappe, C. (författare)
- Institute of Environmental Chemistry, Umeå University, Umeå Sweden
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- Bonner, M. (författare)
- Bonner Analytical Testing Co., Hattiesburg, MS, USA
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- Howell, F. (författare)
- University of Southern Mississippi, Department of Biological Sciences, Hattiesburg, MS, USA
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- Willett, K. (författare)
- Texas A&M University, Department of Veterinary Physiology & Pharmacology, College Station, TX, USA
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- Safe, S. (författare)
- Texas A&M University, Department of Veterinary Physiology & Pharmacology, College Station, TX, 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. ; 37:9-12, s. 1645-1656
- 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
- Nine catfish fillets, three catfish nuggets, two feed samples, and one pond sediment were analyzed for PCDD, PCDF, and-PCB. Farm-raised catfish from Mississippi, Alabama, and Arkansas contained significant levels of 2,3,7,8-substituted PCDD and PCDF. In addition, a large number of non-2,3,7,8-substituted congeners were present in all samples. The catfish fillets and catfish nuggets also contained high concentrations of dioxin-like PCB, as well as a number of non-dioxin-like PCB. The TEQ based on PCDD and PCDF ranged from 9.5 to 43.0 pg/g lipid and the TEQ based on PCB ranged from 0.45 to 4.9 pg/g lipid for all catfish samples. The dioxin-like PCB contributed 4-16% to the total TEQ (PCDD/PCDF/PCB) for the catfish samples. The major source for the PCDD, PCDF, and PCB appears to be from feed and not from pond sediment. Immunoreactive CYP1A protein was elevated 2.5 fold in the pond-raised catfish compared to the aquarium-raised one. The results of this study suggest that the PCDD/PCDF are more important than the PCB in the CYP1A induction.
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
- farm-raised catfish; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; 2
- 3
- 7
- 8-substitution; polychlorinated biphenyls; toxic equivalent; catfish feed; pond sediment; CYP1A induction; immunoreactive protein
- Kemi
- Chemistry
- Enviromental Science
- Miljövetenskap
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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