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Título: | Concentrations of chlorinated pollutants in adipose tissue of yellow-legged gulls (Larus michahellis) from Spain Role of gender and age |
Autor: | Vizuete, Jorge; Hernández Moreno, David; Fidalgo, Luis Eusebio; Bertini, Simonea; Andreini, R.; Soler, Francisco; Míguez-Santiyán, María Prado; López-Beceiro, Ana; Pérez-López, Marcos | Palabras clave: | Larus michahellis Seabird PCB OCP Fat Male/female |
Fecha de publicación: | 2018 | Editor: | Elsevier | Citación: | Ecotoxicology and Environmental Safety 164: 493-499 (2018) | Resumen: | Concentrations of 7 different polychlorinated biphenyl (PCB) congeners, and eleven organochlorine pesticides (OCPs) and metabolites, including DDTs (dichlorodiphenyltrichloroethane), HCHs (hexachlorocyclohexane isomers), Endosulfan, Endosulfan sulfate, Endrin, Dieldrin and HCB (hexachlorobenzene), were determined in adipose tissue of 57 yellow-legged gulls collected from NW and N Spain. Furthermore, the possible differences due to two endogenous factors, age and gender, were determined. All the analyzed PCBs were detected in over 66% of the samples, with levels of 291.9 (PCB 180), 34.5 (PCB 118), 0.7 (PCB 28), 432.6 (PCB 153), 225.5 (PCB 138), 1.3 (PCB 101) and 0.4 (PCB 52) µg/kg of adipose tissue. With respect to the OCPs and metabolites, only 4,4'-DDE and HCB were detected in more than 50% of the samples, with means of 360.6 and 2.5 µg/kg of adipose tissue, respectively. From all the considered contaminants, only 4,4'-DDE levels presented significant differences depending on the gender, with females showing higher values than males (p < 0.01). Significant differences (p < 0.001) were also found related to age for the levels of PCBs 180, 138, 101, 28 and 153, as well as 4,4'-DDE, with adult levels being higher than those in young birds. The results of the present study constitute a baseline to better assess the environmental impacts of PCB and OCP contamination at other coastal sites for future biomonitoring studies, with particular emphasis on gender- and age-related differences. | URI: | http://hdl.handle.net/10261/290700 | DOI: | 10.1016/j.ecoenv.2018.08.060 | ISSN: | 0147-6513 |
Aparece en las colecciones: | (INIA) Artículos |
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