Interspecific comparison of polycyclic aromatic hydrocarbons and persistent organochlorines bioaccumulation in bivalves from a Mediterranean coastal lagoon

The bioaccumulation of polycyclic aromatic hydrocarbons (PAHs), organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) was characterized in cockle, oyster and noble pen shell from nine areas in the Mar Menor lagoon with different hydrodynamic and pollutant sources. Biota, sediment and water samples were simultaneously collected in the spring and autumn of 2010. Considering all bivalve samples, PAH concentrations ranged from 8.98 to 370 mu g.kg(-1) d.w., those of PCBs from 0.15 to 42.36 mu g.kg(-1) d.w. and those of DDXs from below detection limit to 240.6 mu g.kg(-1) d.w., where p,p'-DDE was the main fraction. The bioaccumulation of PAHs was similar for cockle, oyster and noble pen shell, being higher close to ports and wastewater effluents. However, DDX and PCB bioaccumulations in oyster and noble pen shell were significantly higher than in cockle in spring (p = 0.02). The first organic pollutant bioaccumulation data for noble pen shell were obtained in this study, showing a preferential accumulation of pyrene. The increase of PAH bioaccumulation in autumn, as compared to spring, was low, due to high water temperatures during the summer, which favoured PAH dissipation processes. No significant seasonal variations were detected for OCPs and PCBs, except in some specific areas. The PAH, PCB and OCP levels detected in these bivalves were lower than OSPAR/MED POL environmental assessment criteria, except for p,p'-DDE in bivalves sited close to El Albujon watercourse mouth.

Datos y Recursos

Cite como

Leon V.M. Moreno-Gonzalez R. Gonzalez E. Martinez F. Garcia V. y Campillo J.A. Interspecific comparison of polycyclic aromatic hydrocarbons and persistent organochlorines bioaccumulation in bivalves from a Mediterranean coastal lagoon. Elsevier B.V., 2013. https://doi.org/10.1016/j.scitotenv.2013.06.075

Clipboard Icon
Recuperado: 12 Nov 2025 10:24:52
RIS BibTeX

Metadatos
Descargar
DCAT-AP/NTI-RISP

Información básica
Tipo de recurso Artículo
Fecha de creación 05-11-2024
Fecha de última modificación 05-11-2024
Mostrar histórico de cambios
Identificador de los metadatos e8cd72fa-ca28-553d-a98e-23709dd8f3b2
Idioma de los metadatos Español
Temáticas (NTI-RISP)
Categoría del conjunto de alto valor (HVD) Observación de la Tierra y medio ambiente
Categoría temática ISO 19115 biota
URI de palabras clave
Información bibliográfica
Nombre del autor Leon, V.M., Moreno-Gonzalez, R., Gonzalez, E., Martinez, F., Garcia, V. y Campillo, J.A.
Nombre del editor Elsevier B.V.
Identificador alternativo DOI: 10.1016/j.scitotenv.2013.06.075
Identificador del autor
Email del autor victor.leon@ieo.csic.es
Web del autor
Procedencia
Declaración de linaje
Perfil de Metadatos
Notas sobre la versión
Versión