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Comparison of organohalogen compounds in a white-tailed sea eagle egg laid in 1941 with five eggs from 1996 to 2001
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
Stockholm University, Faculty of Science, Department of Applied Environmental Science (ITM).
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2012 (English)In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 88, no 3, 286-291 p.Article 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,p'-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 (1250pg/gl.w. in 1941 and 1540pg/gl.w. (GM) for the REs, respectively). None of the other congeners exceeded 400pg/gl.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
2012. Vol. 88, no 3, 286-291 p.
Keyword [en]
White-tailed sea eagle, Predatory bird, Eggs, Polychlorinated biphenyl, Organochlorine pesticides, PCDD/Fs
National Category
Environmental Sciences
Research subject
Applied Environmental Science
Identifiers
URN: urn:nbn:se:su:diva-75006DOI: 10.1016/j.chemosphere.2012.02.039ISI: 000304794000004OAI: oai:DiVA.org:su-75006DiVA: diva2:513611
Available from: 2012-04-03 Created: 2012-04-03 Last updated: 2017-12-07Bibliographically approved
In thesis
1. Levels of organohalogen compounds in White-tailed sea eagles (Haliaeetus albicilla) in relation to reproduction impairment in the Bothnian Sea
Open this publication in new window or tab >>Levels of organohalogen compounds in White-tailed sea eagles (Haliaeetus albicilla) in relation to reproduction impairment in the Bothnian Sea
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The white-tailed sea eagle (Haliaeetus albicilla) is in the top of the marine food chain and its existence in Sweden has been threatened several times. The species succeeded to recover from the deep decline in the 1970s when the exposure to persistent organic pollutants influenced the reproduction negatively. The species is today spread over the country but is still seen as a near threatened species. Even though a recovery has occurred there is still some reproduction problems seen in the region of the south Bothnian Sea. The work presented in this thesis has focused on expanding the knowledge of bromine and chlorine containing compounds in the white-tailed sea eagles and to correlate the levels found with the reproduction impairment in the region of south Bothnian Sea. Eggs and blood from nestlings collected from different subpopulations, from the Arctic (Lapland) in the north to the Baltic Proper in the south of Sweden, have been studied for polychlorinated dibenzo-p-dioxins (PCDD), dibenzofurans (PCDF), non-ortho-substituted polychlorinated biphenyl (PCB), brominated flame retardants, methoxylated- (MeO-), and hydroxylated- (OH)-polybrominated diphenyl ethers (PBDEs). Some of the investigated compounds have been compared with levels found in a unique white-tailed sea eagle egg collected in the Baltic Proper in 1941. The pattern and levels of PCDD and PCDF in 1941 were similar and in the same range as found today around the same area. Furthermore, the human activity has raised the PCB levels in the white-tailed sea eagles with over 120 times over the last 60 years but these levels are still much lower than in the 1970s. In conclusion none of the investigated compounds in this thesis could be correlated to the reduced reproduction seen in the south Bothnian Sea but the levels of PCDD, PCDF, non-ortho­-PCB and OH-PBDE are high in the populations inhabiting the Baltic Sea and are in the same range as found to cause different biological responses in other avian species worldwide.

Place, publisher, year, edition, pages
Stockholm: Department of Applied Environmental Science (ITM), Stockholm University, 2012. 45 p.
National Category
Environmental Sciences
Research subject
Applied Environmental Science
Identifiers
urn:nbn:se:su:diva-74634 (URN)978-91-7447-478-7 (ISBN)
Public defence
2012-05-04, De Geersalen, Geovetenskapens hus, Svante Arrhenius väg 14, Stockholm, 10:00 (Swedish)
Opponent
Supervisors
Note

At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: In press. Paper 3: Submitted. Paper 4: Manuscript.

Available from: 2012-04-12 Created: 2012-03-19 Last updated: 2012-04-04Bibliographically approved

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Nordlöf, UlrikaEriksson, UllaZebühr, YngveAsplund, Lillemor
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