First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands
Antarctica is no longer pristine due to the confirmed presence of anthropogenic contaminants like Persistent Organic Pollutants (POPs). Benthic organisms are poorly represented in contamination studies in Antarctica although they are known to bioaccumulate contaminants. Sponges (Phylum Porifera) are...
Published in: | Environmental Pollution |
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2023
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Online Access: | https://hdl.handle.net/11365/1243495 https://doi.org/10.1016/j.envpol.2023.121661 https://www.sciencedirect.com/science/article/pii/S0269749123006632 |
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ftunivsiena:oai:usiena-air.unisi.it:11365/1243495 2024-04-21T07:50:05+00:00 First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands Pala, Nicolas Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta Pala, Nicola Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta 2023 ELETTRONICO https://hdl.handle.net/11365/1243495 https://doi.org/10.1016/j.envpol.2023.121661 https://www.sciencedirect.com/science/article/pii/S0269749123006632 eng eng info:eu-repo/semantics/altIdentifier/pmid/37085102 info:eu-repo/semantics/altIdentifier/wos/WOS:000988580400001 volume:329 journal:ENVIRONMENTAL POLLUTION https://hdl.handle.net/11365/1243495 doi:10.1016/j.envpol.2023.121661 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85153050650 https://www.sciencedirect.com/science/article/pii/S0269749123006632 info:eu-repo/semantics/openAccess Benthic organisms Bioaccumulation Chlorinated pesticides PCBs Porifera Southern Ocean info:eu-repo/semantics/article 2023 ftunivsiena https://doi.org/10.1016/j.envpol.2023.121661 2024-03-28T00:42:13Z Antarctica is no longer pristine due to the confirmed presence of anthropogenic contaminants like Persistent Organic Pollutants (POPs). Benthic organisms are poorly represented in contamination studies in Antarctica although they are known to bioaccumulate contaminants. Sponges (Phylum Porifera) are dominant members in Antarctic benthos, both in terms of abundance and biomass, and are an important feeding source for other or-ganisms, playing key functional roles in benthic communities. To the best of our knowledge, legacy chlorinated POPs such as polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), and dichlorodiphenyltrichloroethane (DDT) and their metabolites have never been investigated in this Phylum in Antarctica. The aim of this work was to evaluate the bioaccumulation of PCBs, HCB, o,p'- and p,p'-DDT and their DDE and DDD isomers in 35 sponge samples, belonging to 17 different species, collected along the coast of Terra Nova Bay (Ade`lie Cove and Tethys Bay, Ross Sea), and at Whalers Bay (Deception Island, South Shetland Islands) in Antarctica. Lipid content showed a significant correlation with the three pollutant classes. The overall observed pattern in the three study sites was EPCBs>EDDTs>HCB and it was found in almost every species. The EPCBs, EDDTs, and HCB ranged from 54.2 to 133.7 ng/g lipid weight (lw), from 17.5 to 38.6 ng/g lw and from 4.8 to 8.5 ng/g lw, respectively. Sponges showed contamination levels comparable to other Antarctic benthic organisms from previous studies. The comparison among sponges of the same species from different sites showed diverse patterns for PCBs only in one out of four cases. The concentration of POPs did not vary significantly among the three sites. The pre-dominance of lower chlorinated organochlorines in the samples suggested that long-range atmospheric trans-portation (LRAT) could be the major driver of contamination as molecules with a high long range transport potential (e.g. low chlorinated PCBs, HCB) prevails on heavier ones. Article in Journal/Newspaper Antarc* Antarctic Antarctica Deception Island Ross Sea South Shetland Islands Southern Ocean Università degli Studi di Siena: USiena air Environmental Pollution 329 121661 |
institution |
Open Polar |
collection |
Università degli Studi di Siena: USiena air |
op_collection_id |
ftunivsiena |
language |
English |
topic |
Benthic organisms Bioaccumulation Chlorinated pesticides PCBs Porifera Southern Ocean |
spellingShingle |
Benthic organisms Bioaccumulation Chlorinated pesticides PCBs Porifera Southern Ocean Pala, Nicolas Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
topic_facet |
Benthic organisms Bioaccumulation Chlorinated pesticides PCBs Porifera Southern Ocean |
description |
Antarctica is no longer pristine due to the confirmed presence of anthropogenic contaminants like Persistent Organic Pollutants (POPs). Benthic organisms are poorly represented in contamination studies in Antarctica although they are known to bioaccumulate contaminants. Sponges (Phylum Porifera) are dominant members in Antarctic benthos, both in terms of abundance and biomass, and are an important feeding source for other or-ganisms, playing key functional roles in benthic communities. To the best of our knowledge, legacy chlorinated POPs such as polychlorinated biphenyls (PCBs), hexachlorobenzene (HCB), and dichlorodiphenyltrichloroethane (DDT) and their metabolites have never been investigated in this Phylum in Antarctica. The aim of this work was to evaluate the bioaccumulation of PCBs, HCB, o,p'- and p,p'-DDT and their DDE and DDD isomers in 35 sponge samples, belonging to 17 different species, collected along the coast of Terra Nova Bay (Ade`lie Cove and Tethys Bay, Ross Sea), and at Whalers Bay (Deception Island, South Shetland Islands) in Antarctica. Lipid content showed a significant correlation with the three pollutant classes. The overall observed pattern in the three study sites was EPCBs>EDDTs>HCB and it was found in almost every species. The EPCBs, EDDTs, and HCB ranged from 54.2 to 133.7 ng/g lipid weight (lw), from 17.5 to 38.6 ng/g lw and from 4.8 to 8.5 ng/g lw, respectively. Sponges showed contamination levels comparable to other Antarctic benthic organisms from previous studies. The comparison among sponges of the same species from different sites showed diverse patterns for PCBs only in one out of four cases. The concentration of POPs did not vary significantly among the three sites. The pre-dominance of lower chlorinated organochlorines in the samples suggested that long-range atmospheric trans-portation (LRAT) could be the major driver of contamination as molecules with a high long range transport potential (e.g. low chlorinated PCBs, HCB) prevails on heavier ones. |
author2 |
Pala, Nicola Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta |
format |
Article in Journal/Newspaper |
author |
Pala, Nicolas Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta |
author_facet |
Pala, Nicolas Jiménez, Begoña Roscales, Jose L Bertolino, Marco Baroni, Davide Figuerola, Blanca Avila, Conxita Corsolini, Simonetta |
author_sort |
Pala, Nicolas |
title |
First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
title_short |
First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
title_full |
First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
title_fullStr |
First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
title_full_unstemmed |
First evidence of legacy chlorinated POPs bioaccumulation in Antarctic sponges from the Ross sea and the South Shetland Islands |
title_sort |
first evidence of legacy chlorinated pops bioaccumulation in antarctic sponges from the ross sea and the south shetland islands |
publishDate |
2023 |
url |
https://hdl.handle.net/11365/1243495 https://doi.org/10.1016/j.envpol.2023.121661 https://www.sciencedirect.com/science/article/pii/S0269749123006632 |
genre |
Antarc* Antarctic Antarctica Deception Island Ross Sea South Shetland Islands Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Deception Island Ross Sea South Shetland Islands Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/37085102 info:eu-repo/semantics/altIdentifier/wos/WOS:000988580400001 volume:329 journal:ENVIRONMENTAL POLLUTION https://hdl.handle.net/11365/1243495 doi:10.1016/j.envpol.2023.121661 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85153050650 https://www.sciencedirect.com/science/article/pii/S0269749123006632 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.envpol.2023.121661 |
container_title |
Environmental Pollution |
container_volume |
329 |
container_start_page |
121661 |
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1796933939325042688 |