Fumega, J. (José)

León, V.M. (Víctor Manuel)

Viñas, L. (Lucía)

English

Repositorio Institucional Digital del IEO

PBDEs and pahs in two SPANISH coastal areas: Ria de vigo and Mar menor lagoonLucía Viñas 1*, Jose Fumega1, Víctor M. León 2 1 Instituto Español de Oceanografía, Centro Oceanográfico de Vigo. Subida a Radio Faro 50, 36390 Vigo, Spain. 2Instituto Español de Oceanografía, Centro Oceanográfico de Murcia. C/ Varadero 1  30740 Murcia, Spain. *lucia.vinas@vi.ieo.esThe distribution of PBDEs (polybrominated diphenyl ethers) and PAHs (parent and alkylated polycyclic aromatic hydrocarbons) were characterized in surface sediments from Ria de Vigo and Mar Menor lagoon. The PAHs concentrations in seawater were also determined using stir-bar sorptive extraction coupled to GC-MS. The extraction and analytical determination of PBDEs (Polybrominated diphenyl ethers) and PAHs (parent and alkylated Polycyclic Aromatic Hydrocarbons) were developed and validated for the analysis of marine sediments. PBDEs have been widely used in the last years as additives due to their good flame retardant properties.The study areas are subject to different anthropogenic pressures (industrial, touristic, navigation, etc.) and environmental conditions. Surface sediments and seawater were sampled in spring and autumn 2015 to study the pollutants distribution and possible seasonal variations. The highest PAHs concentrations in seawater were found close to main ports and navigation routes.Concentrations of both parent and alkylated PAHs in sediments were higher in Ria de Vigo and no clear seasonal trends are observed. The ratios assessment indicates that the PAHs sources in Ria de Vigo are more related to pyrolitic sources than in Mar Menor Lagoon where a mixture of pyrolitic/petrogenic sources is observed. Concentrations of PBDEs show a higher incidence in the Ria de Vigo than in Mar Menor Lagoon and more pronounced in the spring season, especially for BDE47, indicating a clear industrial influence in the area.Acknowledgement This work was supported by the Spanish Inter-Ministerial Science and Technology Commission through the ‘IMPACTA’ (CICYT, CTM2013-48194-C3-1-R) project and by the European Union through the European Regional Development Fund (ERDF). Authors would also like to thank the technical staff at the labs for the sampling and treatment of the samples, especially Jessica Bargiela, Inmaculada Alves, Begoña Pérez-Fernández, María López-Rodríguez, Inés García, Juan A. Campillo and Víctor García.Poster					X Oral				Presenting author under 32

PBDEs and PAHs in two spanish coastal areas: Ria de Vigo and Mar Menor Lagoon

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PBDEs and PAHs in two spanish coastal areas: Ria de Vigo and Mar Menor Lagoon

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