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Comparison of organohalogen compounds in a White-tailed sea eagle egg laid in 1941 with five eggs from 1996-2001
Stockholms universitet.
Swedish Museum of Natural History, Department of Environmental research and monitoring.ORCID iD: 0000-0002-1654-8762
Stockholms universitet.
Stockholms universitet.
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2012 (English)In: Chemosphere, Vol. 88, p. 286-291Article in journal (Refereed) Published
Abstract [en]

Eggs laid by white-tailed sea eagles (Haliaeetus albicilla), one in 1941 and five eggs between 1996 and 2001, all from the same geographical region of the Baltic Sea, were screened for organohalogen substances. The 1941 egg contained hexachlorobenzene (HCB), but did not contain either of the pesticides hexachlorocyclohexane (HCH) or p,p0-DDT, nor any metabolites of the latter. In contrast, the more recent eggs (REs) contained all of these compounds. Of the seven polychlorinated biphenyls (PCBs) analyzed (CB28, 52, 101, 118, 138/163, 153 and 180), only the more highly chlorinated congeners were detected in the 1941 sample, with CB153 followed by CB180 showing the highest concentrations. All eggs demonstrated the same congener pattern with respect to the more highly chlorinated PCBs, but concentrations were approximately 70–230 times higher in the REs. All of the polychlorinated-p-dioxin and dibenzofuran (PCDD/Fs) congeners analyzed were detected in the eggs, with the dominant congener being 2,3,4,7,8-PeCDF (1250 pg/g l.w. in 1941 and 1540 pg/g l.w. (GM) for the REs, respectively). None of the other congeners exceeded 400 pg/g l.w., and the concentrations of 2,3,7,8-TCDD, 2,3,7,8-TCDF and 1,2,3,7,8-PeCDF were all lower in the REs. None of five congeners of polybrominated diphenyl ethers (PBDEs) found in the REs was detected in the egg from 1941. The three methoxylated brominated diphenyl ethers (MeO-BDEs) analyzed were found at similar levels and with a similar congener pattern in REs as in the egg from 1941. In conclusion, this study has shown the absence of DDE and PBDE and the presence of HCB and PCBs in a white-tailed sea eagle egg laid in 1941, and a strong increase of PCBs, DDE and PBDE in white-tailed sea eagle eggs from the same area in 1996–2001. The MeO-BDEs were found in similar concentrations in the analyzed eggs. The 1941 sample shows substantial concentrations of PCDD/Fs, noteworthy in the same magnitude as in the recent samples, illustrating the historical and recent exposure of these compounds

Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 88, p. 286-291
National Category
Natural Sciences
Research subject
Man and the environment
Identifiers
URN: urn:nbn:se:nrm:diva-3349DOI: 10.1016/j.chemosphere.2012.02.039OAI: oai:DiVA.org:nrm-3349DiVA, id: diva2:1357941
Note

Financial support was provided by the Swedish Research Council for Environment, Agricultural Sciences and Spatial Planning.

Available from: 2019-10-04 Created: 2019-10-04 Last updated: 2019-10-05Bibliographically approved

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