title: Persistent Organic Pollutants in gull eggs of two species (Larus michahellis and Larus audouinii) from the Ebro delta Natural Park.
abstract: The aim of this study was to determine the impact of priority and emerging Persistent Organic Pollutants (POPs) in gull eggs from two species, the scavenger Larus michahellis and the protected species, Larus audouinii. These two species share habitat in the Natural Park of the Ebro delta (Catalonia, Spain). Compounds studied are included or under consideration in the Stockholm Convention and comprise polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), organochlorinated compounds (OCs), perfluorinated compounds (PFCs) and short chain chlorinated paraffins (SCCPs). Four methods based in selective extraction and gas or liquid chromatography coupled to mass spectrometry were used and quality parameters are provided. OC pesticides and marker PCBs were the most abundant chemical families detected in eggs from the two species, followed by PFCs, PBDEs (especially BDE 209) and SCCPs. Dioxin-like PCBs and PCDD/Fs were also detected in all samples. The overall widespread presence of POPs is discussed in terms of feeding habits, bird ecology and anthropogenic pressures in the protected Ebro delta breeding area.
authors.affiliation: Department of Environmental Chemistry, IDAEA-CSIC, Jordi Girona 18-26, 08034 Barcelona, Catalonia, Spain.
authors.forename: Laura
authors.initials: L
authors.lastname: Morales
authors.forename: Maria Generosa
authors.initials: MG
authors.lastname: Martrat
authors.forename: Jorge
authors.initials: J
authors.lastname: Olmos
authors.forename: Jordi
authors.initials: J
authors.lastname: Parera
authors.forename: Joana
authors.initials: J
authors.lastname: Vicente
authors.forename: Albert
authors.initials: A
authors.lastname: Bertolero
authors.forename: Manuela
authors.initials: M
authors.lastname: Abalos
authors.forename: Silvia
authors.initials: S
authors.lastname: Lacorte
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Santos
authors.forename: Esteban
authors.initials: E
authors.lastname: Abad
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000032:analysis; D046091:Charadriiformes; D004147:Dioxins / Q000032:analysis; D004531:Eggs / Q000032:analysis*; D004784:Environmental Monitoring; D004785:Environmental Pollutants / Q000032:analysis*; D055768:Halogenated Diphenyl Ethers / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis; D011078:Polychlorinated Biphenyls / Q000032:analysis; D013030:Spain
chemical_list: D001572:Benzofurans; D004147:Dioxins; D004785:Environmental Pollutants; D055768:Halogenated Diphenyl Ethers; D006843:Hydrocarbons, Chlorinated; D011078:Polychlorinated Biphenyls