Persistent organic pollutant levels and the importance of source proximity in Baltic and Svalbard breeding common eiders
| Autor: | Dorte Herzke, Sveinn Are Hanssen, Børge Moe, Markus Öst, Kim Jaatinen, Åse Krøkje, Kristin Møller Gabrielsen, Anette A. Fenstad, Jan Ove Bustnes, Bjørn Munro Jenssen |
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| Rok vydání: | 2015 |
| Předmět: |
Insecticides
010504 meteorology & atmospheric sciences Anthropogenic pollution Health Toxicology and Mutagenesis Dichlorodiphenyl Dichloroethylene Population 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Food chain Arctic biology.animal Anseriformes Environmental Chemistry Animals Body Size education Finland 0105 earth and related environmental sciences Trophic level Persistent organic pollutant education.field_of_study biology Ecology Norway biology.organism_classification Polychlorinated Biphenyls Eider Seabirds chemistry Isotope Labeling Environmental science ta1181 Female Seabird Contrasting environments Lindane Hexachlorocyclohexane Environmental Monitoring |
| Zdroj: | Environmental toxicology and chemistry. 35(6) |
| ISSN: | 1552-8618 |
| Popis: | The distance to sources and the long-range transport potential of persistent organic pollutants (POPs) are important in understanding the impact of anthropogenic pollution on natural seabird populations. The present study documented blood concentrations of POPs in the Baltic Sea (Tvarminne, Finland) population of common eiders (Somateria mollissima) in 2009 and in 2011 and compared the concentrations with the presumably less exposed Arctic population in Svalbard (Kongsfjorden, Norway). The Baltic population had 26, 10, and 5 times greater concentrations of hexachlorocyclohexane, polychlorinated biphenyls, and p,p'-dichlorodiphenyldichloroethylene than the Svalbard population. Unexpectedly, concentrations of chlordanes were higher in Svalbard eiders, whereas concentrations of hexachlorobenzenes (HCBs) did not differ between the 2 populations. Although the similar HCB levels may partly be explained by the high transport potential of HCBs, unknown factors may have been more important than distance to sources and long-range transport potential for the chlordanes. One plausible explanation may be that the fasting-related redistribution of POPs from fat to blood was greater throughout the incubation in Arctic eiders, causing them to have higher blood levels of these POPs at the end of incubation. The blood concentrations of POPs in Baltic eiders were higher than documented in any other eider population and were comparable to levels in seabirds feeding at higher trophic positions in the food chain. Environ Toxicol Chem 2016;35:1526-1533. © 2015 SETAC. |
| Databáze: | OpenAIRE |
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