High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem
peer reviewed Blubber samples from three delphinid species (false killer whale, Guiana and rough-toothed dolphin), as well as liver samples from franciscana dolphins were analyzed for dioxins and related compounds (DRCs). Samples were collected from 35 cetaceans stranded or incidentally captured in...
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Format: | Article in Journal/Newspaper |
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Elsevier Science
2013
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Online Access: | https://orbi.uliege.be/handle/2268/152106 https://orbi.uliege.be/bitstream/2268/152106/1/2013%20STOTEN%20Dorneles.pdf https://doi.org/10.1016/j.scitotenv.2013.06.015 |
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ftorbi:oai:orbi.ulg.ac.be:2268/152106 2024-10-20T14:10:00+00:00 High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem Dorneles, Paulo R Sanz, Paloma Eppe, Gauthier Azevedo, Alexandre Bertozzi, Carlo Martínez, María Secchi, Eduardo Barbosa, Lupércio Cremer, Marta Alonso, Mariana Torres, João Lailson-Brito, José Malm, Olaf Eljarrat, Ethel Barceló, Damià Das, Krishna 2013 https://orbi.uliege.be/handle/2268/152106 https://orbi.uliege.be/bitstream/2268/152106/1/2013%20STOTEN%20Dorneles.pdf https://doi.org/10.1016/j.scitotenv.2013.06.015 en eng Elsevier Science http://reflexions.ulg.ac.be/DauphinsPCB urn:issn:0048-9697 urn:issn:1879-1026 https://orbi.uliege.be/handle/2268/152106 info:hdl:2268/152106 https://orbi.uliege.be/bitstream/2268/152106/1/2013%20STOTEN%20Dorneles.pdf doi:10.1016/j.scitotenv.2013.06.015 info:pmid:23827355 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Science of the Total Environment, 463-464, 309-318 (2013) marine mammals PCBs pollutants Brazil Dioxin-like compounds Cetaceans Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2013 ftorbi https://doi.org/10.1016/j.scitotenv.2013.06.015 2024-09-27T07:01:47Z peer reviewed Blubber samples from three delphinid species (false killer whale, Guiana and rough-toothed dolphin), as well as liver samples from franciscana dolphins were analyzed for dioxins and related compounds (DRCs). Samples were collected from 35 cetaceans stranded or incidentally captured in a highly industrialized and urbanized area (Southeast and Southern Brazilian regions). Dioxin-like PCBs accounted for over 83% of the total TEQ for all cetaceans. Non-ortho coplanar PCBs, for franciscanas (82%), and mono-ortho PCBs (up to 80%), for delphinids, constituted the groups of highest contribution to total TEQ. Regarding franciscana dolphins, significant negative correlations were found between total length (TL) and three variables, ΣTEQ-DRCs, ΣTEQ-PCDF and ΣTEQ non-ortho PCB. An increasing efficiency of the detoxifying activity with the growth of the animal may be a plausible explanation for these findings. This hypothesis is reinforced by the significant negative correlation found between TL and PCB126/PCB169 concentration ratio. DRC concentrations (ng/g lipids) varied from 36 to 3006, for franciscana dolphins, as well as from 356 to 30776, for delphinids. The sum of dioxin-like and indicator PCBs varied from 34662 to 279407 ng/g lipids, for Guiana dolphins from Rio de Janeiro state, which are among the highest PCB concentrations ever reported for cetaceans. The high concentrations found in our study raise concern not only on the conservation of Brazilian coastal cetaceans, but also on the possibility of human health problem due to consumption of fish from Brazilian estuaries. Article in Journal/Newspaper Killer Whale University of Liège: ORBi (Open Repository and Bibliography) Science of The Total Environment 463-464 309 318 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
marine mammals PCBs pollutants Brazil Dioxin-like compounds Cetaceans Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
spellingShingle |
marine mammals PCBs pollutants Brazil Dioxin-like compounds Cetaceans Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie Dorneles, Paulo R Sanz, Paloma Eppe, Gauthier Azevedo, Alexandre Bertozzi, Carlo Martínez, María Secchi, Eduardo Barbosa, Lupércio Cremer, Marta Alonso, Mariana Torres, João Lailson-Brito, José Malm, Olaf Eljarrat, Ethel Barceló, Damià Das, Krishna High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
topic_facet |
marine mammals PCBs pollutants Brazil Dioxin-like compounds Cetaceans Life sciences Environmental sciences & ecology Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Sciences aquatiques & océanologie |
description |
peer reviewed Blubber samples from three delphinid species (false killer whale, Guiana and rough-toothed dolphin), as well as liver samples from franciscana dolphins were analyzed for dioxins and related compounds (DRCs). Samples were collected from 35 cetaceans stranded or incidentally captured in a highly industrialized and urbanized area (Southeast and Southern Brazilian regions). Dioxin-like PCBs accounted for over 83% of the total TEQ for all cetaceans. Non-ortho coplanar PCBs, for franciscanas (82%), and mono-ortho PCBs (up to 80%), for delphinids, constituted the groups of highest contribution to total TEQ. Regarding franciscana dolphins, significant negative correlations were found between total length (TL) and three variables, ΣTEQ-DRCs, ΣTEQ-PCDF and ΣTEQ non-ortho PCB. An increasing efficiency of the detoxifying activity with the growth of the animal may be a plausible explanation for these findings. This hypothesis is reinforced by the significant negative correlation found between TL and PCB126/PCB169 concentration ratio. DRC concentrations (ng/g lipids) varied from 36 to 3006, for franciscana dolphins, as well as from 356 to 30776, for delphinids. The sum of dioxin-like and indicator PCBs varied from 34662 to 279407 ng/g lipids, for Guiana dolphins from Rio de Janeiro state, which are among the highest PCB concentrations ever reported for cetaceans. The high concentrations found in our study raise concern not only on the conservation of Brazilian coastal cetaceans, but also on the possibility of human health problem due to consumption of fish from Brazilian estuaries. |
format |
Article in Journal/Newspaper |
author |
Dorneles, Paulo R Sanz, Paloma Eppe, Gauthier Azevedo, Alexandre Bertozzi, Carlo Martínez, María Secchi, Eduardo Barbosa, Lupércio Cremer, Marta Alonso, Mariana Torres, João Lailson-Brito, José Malm, Olaf Eljarrat, Ethel Barceló, Damià Das, Krishna |
author_facet |
Dorneles, Paulo R Sanz, Paloma Eppe, Gauthier Azevedo, Alexandre Bertozzi, Carlo Martínez, María Secchi, Eduardo Barbosa, Lupércio Cremer, Marta Alonso, Mariana Torres, João Lailson-Brito, José Malm, Olaf Eljarrat, Ethel Barceló, Damià Das, Krishna |
author_sort |
Dorneles, Paulo R |
title |
High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
title_short |
High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
title_full |
High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
title_fullStr |
High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
title_full_unstemmed |
High accumulation of PCDD, PCDF, and PCB congeners in marine mammals from Brazil: a serious PCB problem |
title_sort |
high accumulation of pcdd, pcdf, and pcb congeners in marine mammals from brazil: a serious pcb problem |
publisher |
Elsevier Science |
publishDate |
2013 |
url |
https://orbi.uliege.be/handle/2268/152106 https://orbi.uliege.be/bitstream/2268/152106/1/2013%20STOTEN%20Dorneles.pdf https://doi.org/10.1016/j.scitotenv.2013.06.015 |
genre |
Killer Whale |
genre_facet |
Killer Whale |
op_source |
Science of the Total Environment, 463-464, 309-318 (2013) |
op_relation |
http://reflexions.ulg.ac.be/DauphinsPCB urn:issn:0048-9697 urn:issn:1879-1026 https://orbi.uliege.be/handle/2268/152106 info:hdl:2268/152106 https://orbi.uliege.be/bitstream/2268/152106/1/2013%20STOTEN%20Dorneles.pdf doi:10.1016/j.scitotenv.2013.06.015 info:pmid:23827355 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.scitotenv.2013.06.015 |
container_title |
Science of The Total Environment |
container_volume |
463-464 |
container_start_page |
309 |
op_container_end_page |
318 |
_version_ |
1813449698038513664 |