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dc.contributor.authorGrimalt, Joan O.-
dc.contributor.authorVan Drooge, Barend L.-
dc.contributor.authorRibes, Alejandra-
dc.contributor.authorVilanova, Rosa M.-
dc.contributor.authorFernández Ramón, M. Pilar-
dc.contributor.authorAppleby, Peter-
dc.date.accessioned2009-09-22T11:52:44Z-
dc.date.available2009-09-22T11:52:44Z-
dc.date.issued2004-03-
dc.identifier.citationChemosphere 54(10): 1549-1561 (2004)en_US
dc.identifier.issn0045-6535-
dc.identifier.urihttp://hdl.handle.net/10261/17107-
dc.description13 pages, 6 figures, 2 tables.-- PMID: 14659957 [PubMed].-- Available online Nov 21, 2003.en_US
dc.description.abstractThe composition of persistent organochlorine compounds (OC) in soils and sediments from two high altitude European mountain lakes, Redon in the Pyrenees and Ladove in the Tatra mountains, has been studied. Sediment cores from two additional lakes in the Tatra mountains, Starolesnianske Pleso and Dlugi Staw, have also been examined. DDTs (1.7–13 ng g−1) were the most abundant OC in soils followed by total polychlorobiphenyls (PCBs; 0.41–1.5 ng g−1) and hexachlorobenzene (HCB; 0.15–0.91 ng g−1). In sediments, the dominant OC were also DDTs (3.3–28 ng g−1) and PCBs (2.3–15 ng g−1). These concentrations are low, involving absence of major pollution sources in these high mountain regions.en_US
dc.description.abstractThe downcore OC profiles in soils and sediments were similar but higher concentrations and steeper vertical gradients were observed in the latter. Radiometric determinations showed absence of significant OC transport from catchment to lake. The sediment–soil difference points therefore to a better retention of the OC load in sediments than soils which may be related to the low temperatures that are currently encountered at the bottom of the lake water column and the depletion of sediment bioturbation in these cold environments.en_US
dc.description.abstractSignificant qualitative changes in the soil PCB distributions are observed downcore. These involve a dominance of the high molecular weight congeners in the top core sections and those of lower weight (i.e. less chlorinated) in the bottom. Anaerobic dechlorination of higher molecular weight congeners occurring in microsites, e.g. as observed in flooded or poorly drained soils, could be responsible for these changes. This process could be concurrent to bioturbation.en_US
dc.description.sponsorshipFinancial support from LIMPACS and EMERGE Projects.en_US
dc.format.extent22195 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsclosedAccessen_US
dc.subjectOrganochlorine compoundsen_US
dc.subjectHigh mountainsen_US
dc.subjectSoilsen_US
dc.subjectLacustrine sedimentsen_US
dc.subjectTrace chemical pollution in remote environmentsen_US
dc.titlePersistent organochlorine compounds in soils and sediments of European high altitude mountain lakesen_US
dc.typeartículoen_US
dc.identifier.doi10.1016/j.chemosphere.2003.09.047-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.chemosphere.2003.09.047en_US
dc.identifier.e-issn1879-1298-
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextNo Fulltext-
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