Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/21639
Share/Export:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Title

Evidence for a specific pattern of polychlorinated dibenzo-p-dioxins and dibenzofurans in bivalves

AuthorsAbad Holgado, Esteban CSIC ORCID; Pérez, Francisca; Llerena, José J.; Caixach Gamisans, Josep
KeywordsPolychlorinated dibenzofurans (PCDDs/PCDFs)
Bivalves
Mussels
Levels of dioxins
Issue Date18-Oct-2003
PublisherAmerican Chemical Society
CitationEnvironmental Science and Technology 37(22): 5090–5096 (2003)
AbstractThe occurrence of the polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/PCDFs) was studied in four different bivalve species (mussels, oysters, carpetshells, and cupped oysters) collected in three different sampling stations at the Spanish Coast from 1994 onward. The analysis revealed an unexpected isomer distribution of chlorosubstituted dioxins and furans characterized by a complex mixture of TCDF and TCDD, including both toxic and nontoxic isomers and highly chlorinated congeners, mainly OCDD. Principal component analysis revealed similarities between identical species collected from the different sites. A dioxin fingerprint could be easily distinguished between bivalve species collected in the same sampling point. The dioxin fingerprint found in filter-feeders was also compared to other marine species showing remarkable differences. Due to the habits of the bivalve species, sediment samples were also analyzed within this study. No similarities in the pattern were found for both matrices, the sediments and the bivalves. In the absence of a potential source of these toxicants affecting these species the hypothesis of a specific metabolism of the bivalves is suggested. No values higher than 4 pg WHO-TEQ/g whole weight were determined, and all samples met the current limit proposed by European Regulations. Independently of the bivalve species considered, the major contribution to the total WHO-TEQ comes from 2,3,7,8-TCDF and 2,3,4,7,8-PeCDF, at about the same levels of the 2,3,7,8-TCDD and 1,2,3,7,8-PCDD.
Description7 pages, 9 figures, 1 table.-- PMID: 14655693 [PubMed].-- Printed version published Nov 15, 2003.
Publisher version (URL)http://dx.doi.org/10.1021/es034488q
URIhttp://hdl.handle.net/10261/21639
DOI10.1021/es034488q
ISSN0013-936X (Print)
Appears in Collections:(IDAEA) Artículos

Show full item record
Review this work

SCOPUSTM   
Citations

14
checked on May 15, 2022

WEB OF SCIENCETM
Citations

12
checked on May 13, 2022

Page view(s)

346
checked on May 17, 2022

Google ScholarTM

Check

Altmetric

Dimensions


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.