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dc.contributor.authorCatalán, Jordi-
dc.contributor.authorVentura, Marc-
dc.contributor.authorVives, Ingrid-
dc.contributor.authorGrimalt, Joan O.-
dc.date.accessioned2009-09-03T07:53:21Z-
dc.date.available2009-09-03T07:53:21Z-
dc.date.issued2004-07-15-
dc.identifier.citationEnvironmental Science and Technology 38(16): 4269-4275 (2004)en_US
dc.identifier.issn0013-936X-
dc.identifier.urihttp://hdl.handle.net/10261/16593-
dc.description7 pages, 4 figures, 5 tables.-- PMID: 15382852 [PubMed].-- Printed version published Aug, 15, 2004.en_US
dc.description.abstractAn integrated study encompassing the distribution of organochlorine compounds (OC) in water, food web (chironomids, terrestrial insects, cladocerans, mollusks, and cyanobacteria), and fish (brown trout) from a high mountain lake (Redon, Pyrenees) is reported. OC distributions in these compartments have been determined to assess their transport routes into fish. Food diets have been estimated by analysis of fish stomach content and food web stable isotopes (δ13C and δ15N). OCs with octanol−water partition coefficient (Kow) higher than 106 showed lower concentra tions in food than expected from theoretical octanol−water partition, indicating that the distribution of these compounds does not reach equilibrium within the life span of the food web organisms (ca. 1 year). On the other hand, the degree of biomagnification in fish increased with Kow, except in the case of the largest compound analyzed (seven chlorine substituents, PCB #180). OC exchange at fish gill and gut has been evaluated using a fugacity model based on the water, food, and fish concentrations. All compounds exhibited a net gill loss and a net gut uptake. A pseudostationary state was only achieved for compounds with log(Kow) < 6. Calculation of fish average residence times for the compounds in apparent steady state gave values of days to a few weeks for HCHs, 1 year for HCB and 4,4‘-DDE, and 2−3 years for 4,4‘-DDT and PCB#28 and PCB#52. Residence times longer than one decade were found for the more chlorinated PCB.en_US
dc.description.sponsorshipFinancial support from the EU projects EUROLIMPACS (GOCE-CT-2003-505540) and EMERGE (EVK1-CT-1999-00032) and ACA-CIRIT (Generalitat de Catalunya).en_US
dc.format.extent22195 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherAmerican Chemical Societyen_US
dc.rightsclosedAccessen_US
dc.subjectOrganochlorine compoundsen_US
dc.subjectPCBsen_US
dc.subjectOrganic Pollutantsen_US
dc.subjectFood weben_US
dc.subjectHigh mountain lakesen_US
dc.titleThe roles of food and water in the bioaccumulation of organochlorine compounds in high mountain lake fishen_US
dc.typeartículoen_US
dc.identifier.doihttp://dx.doi.org/10.1021/es040035p-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1021/es040035pen_US
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