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dc.contributor.authorBerrojalbiz, Naiara-
dc.contributor.authorDachs, Jordi-
dc.contributor.authorOjeda, María José-
dc.contributor.authorValle, María Carmen-
dc.contributor.authorCastro-Jiménez, Javier-
dc.contributor.authorWollgast, J.-
dc.contributor.authorMichela, Ghiani-
dc.contributor.authorHanke, Georg-
dc.contributor.authorZaldívar, José Manuel-
dc.date.accessioned2012-11-13T13:13:39Z-
dc.date.available2012-11-13T13:13:39Z-
dc.date.issued2011-
dc.identifier.citationGlobal Biogeochemical Cycles 25 : 14 p. (2011)es_ES
dc.identifier.issn0886-6236-
dc.identifier.urihttp://hdl.handle.net/10261/60134-
dc.description.abstractThe Mediterranean and Black Seas are unique marine environments subject to important anthropogenic pressures due to atmospheric and riverine inputs of organic pollutants. They include regions of different physical and trophic characteristics, which allow the studying of the controls on pollutant occurrence and fate under different conditions in terms of particles, plankton biomass, interactions with the atmosphere, biodegradation, and their dependence on the pollutant physical chemical properties. Polycyclic Aromatic Hydrocarbons (PAHs) have been measured in samples of seawater (dissolved and particulate phases) and plankton during two east-west sampling cruises in June 2006 and May 2007. The concentrations of dissolved PAHs were higher in the south-western Black Sea and Eastern Mediterranean than in the Western Mediterranean, reflecting different pollutant loads, trophic conditions and cycling. Particle and plankton phase PAH concentrations were higher when lower concentrations of suspended particles and biomass occurred, with apparent differences due to the PAH physical chemical properties. The surface PAH particle phase concentrations decreased when the total suspended particles (TSP) increased for the higher molecular weight (MW) compounds, consistent with controls due to particle settling depletion of water column compounds and dilution. Conversely, PAH concentrations in plankton decreased at higher biomass only for the low MW PAHs, suggesting that biodegradative processes in the water column are a major driver of their occurrence in the photic zone. The results presented here are the most extensive data set available for the Mediterranean Sea and provide clear evidence of the important physical and biological controls on PAH occurrence and cycling in oceanic regions.es_ES
dc.description.sponsorshipThis work was funded by the European Union and Spanish Ministry of Science and Innovation through the Thresholds projects. N. Berrojalbiz acknowledges a predoctoral fellowship from the Basque Government. C Duarte is acknowledged as PI of Thresholds project and for leading two legs of Thresholds cruises. A. Tovar and M. Alvarez are acknowledged for leading the other two Thresholds legs, respectively.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.rightsopenAccesses_ES
dc.subjectBlack Seaes_ES
dc.subjectMediterranean Seaes_ES
dc.subjectPAHes_ES
dc.subjectBiogeochemical cycleses_ES
dc.titleBiogeochemical and physical controls on concentrations of polycyclic aromatic hydrocarbons in water and plankton of the Mediterranean and Black Seases_ES
dc.typeartículoes_ES
dc.identifier.doi10.1029/2010GB003775-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1029/2010GB003775es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
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