Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf

Total organic carbon (Corg), total nitrogen (Ntot), Corg/Ntot, δ13Corg, δ15N, calcium carbonate (CaCO3), and grain size were analyzed in 70 surface samples and 19 short cores from the southwestern Portuguese shelf. Perylene and USEPA-16 PAHs were quantified in a subset of these samples. The findings...

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Autores: Mil-Homens, Mário, Gonçalves, Sofia, Cortés, Alejandro, van Drooge, Barend L., de Stigter, Henko, Grimalt, Joan O., Cordeiro, Lívia Gebara, Santos, Miguel M., Almeida, C Marisa R., Caetano, Miguel
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/373410
Acesso em linha:http://hdl.handle.net/10261/373410
https://api.elsevier.com/content/abstract/scopus_id/85209942568
Access Level:acceso abierto
Palavra-chave:USEPA-16ΣPAHs
Marine sediments
Organic matter composition
Perylene
Stable carbon and nitrogen isotopes
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/14
http://metadata.un.org/sdg/11
Ensure availability and sustainable management of water and sanitation for all
Make cities and human settlements inclusive, safe, resilient and sustainable
Ensure sustainable consumption and production patterns
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
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spelling Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelfMil-Homens, MárioGonçalves, SofiaCortés, Alejandrovan Drooge, Barend L.de Stigter, HenkoGrimalt, Joan O.Cordeiro, Lívia GebaraSantos, Miguel M.Almeida, C Marisa R.Caetano, MiguelUSEPA-16ΣPAHsMarine sedimentsOrganic matter compositionPeryleneStable carbon and nitrogen isotopeshttp://metadata.un.org/sdg/6http://metadata.un.org/sdg/14http://metadata.un.org/sdg/11Ensure availability and sustainable management of water and sanitation for allMake cities and human settlements inclusive, safe, resilient and sustainableEnsure sustainable consumption and production patternsConserve and sustainably use the oceans, seas and marine resources for sustainable developmentTotal organic carbon (Corg), total nitrogen (Ntot), Corg/Ntot, δ13Corg, δ15N, calcium carbonate (CaCO3), and grain size were analyzed in 70 surface samples and 19 short cores from the southwestern Portuguese shelf. Perylene and USEPA-16 PAHs were quantified in a subset of these samples. The findings suggest that organic matter derives from a mix of terrestrial and marine sources, outlined by Corg, Ntot, and isotopic signatures. Perylene combined with δ13Corg was used to identify the main PAH sources in these environments. Diagnostic perylene ratios revealed contributions from natural sources in the Tagus region and contaminated materials from the Sado Dredged Disposal Site, with additional perylene in Sines linked to atmospheric deposition of pyrogenic sources. A significant correlation between perylene and USEPA-16 PAHs indicates natural and anthropogenic inputs from the Tagus. This multiproxy approach-combining USEPA-16ΣPAHs, perylene, and δ13Corg-offers insights for assessing environmental risks and guiding marine environmental management according to the MSFD.The authors would like to thank for financial support: FEAMP through the CSS project (MAR-01.04.02-FEAMP-0013). The TAGUSGAS project (PTDC/CTA-GEO/31885/2017) and the CSS project financed the 2021 sampling campaign. The MINEPLAT project (ALT20-03-0145-FEDER-000013) supported part of the 2021 sampling campaign and the 2019 sampling campaign, respectively. Special thanks are due to the crews of the research vessel Noruega and the Portuguese Navy research vessel NRP Almirante Gago Coutinho and to all who participated in these two sampling campaigns. The authors thank the technical staff of the IPMA laboratories involved in sampling and sample preparation for the several analyses. A special thanks to Warley Soares, Mafalda Freitas and André Santana from IPMA for doing the grain-size, Corg and Ntot determinations. We also thank to Piet van Gaever from NIOZ for undertaking the 210Pb and 226Ra measurements. The IPMA Sedimentological Laboratory was financed by project PINFRA/22157/2016-EMSO-PT. The authors also acknowledge the Fundação para a Ciência e a Tecnologia (FCT) for CIIMAR Strategic Funding UIDB/04423/2020 and UIDP/04423/2020 and for CCMAR Strategic Funding UIDB/04326/2020, UIDP/04326/2020 and LA/P/0101/2020. We thank the three anonymous reviewers for their constructive comments that improved this manuscript.Peer reviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/373410https://api.elsevier.com/content/abstract/scopus_id/85209942568reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésMarine pollution bulletinhttps://doi.org/10.1016/j.marpolbul.2024.117303Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3734102026-05-22T06:33:51Z
dc.title.none.fl_str_mv Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
title Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
spellingShingle Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
Mil-Homens, Mário
USEPA-16ΣPAHs
Marine sediments
Organic matter composition
Perylene
Stable carbon and nitrogen isotopes
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/14
http://metadata.un.org/sdg/11
Ensure availability and sustainable management of water and sanitation for all
Make cities and human settlements inclusive, safe, resilient and sustainable
Ensure sustainable consumption and production patterns
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
title_short Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
title_full Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
title_fullStr Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
title_full_unstemmed Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
title_sort Sources and distribution of organic matter and polycyclic aromatic hydrocarbons in sediments of the southwestern Portuguese shelf
dc.creator.none.fl_str_mv Mil-Homens, Mário
Gonçalves, Sofia
Cortés, Alejandro
van Drooge, Barend L.
de Stigter, Henko
Grimalt, Joan O.
Cordeiro, Lívia Gebara
Santos, Miguel M.
Almeida, C Marisa R.
Caetano, Miguel
author Mil-Homens, Mário
author_facet Mil-Homens, Mário
Gonçalves, Sofia
Cortés, Alejandro
van Drooge, Barend L.
de Stigter, Henko
Grimalt, Joan O.
Cordeiro, Lívia Gebara
Santos, Miguel M.
Almeida, C Marisa R.
Caetano, Miguel
author_role author
author2 Gonçalves, Sofia
Cortés, Alejandro
van Drooge, Barend L.
de Stigter, Henko
Grimalt, Joan O.
Cordeiro, Lívia Gebara
Santos, Miguel M.
Almeida, C Marisa R.
Caetano, Miguel
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv USEPA-16ΣPAHs
Marine sediments
Organic matter composition
Perylene
Stable carbon and nitrogen isotopes
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/14
http://metadata.un.org/sdg/11
Ensure availability and sustainable management of water and sanitation for all
Make cities and human settlements inclusive, safe, resilient and sustainable
Ensure sustainable consumption and production patterns
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
topic USEPA-16ΣPAHs
Marine sediments
Organic matter composition
Perylene
Stable carbon and nitrogen isotopes
http://metadata.un.org/sdg/6
http://metadata.un.org/sdg/14
http://metadata.un.org/sdg/11
Ensure availability and sustainable management of water and sanitation for all
Make cities and human settlements inclusive, safe, resilient and sustainable
Ensure sustainable consumption and production patterns
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
description Total organic carbon (Corg), total nitrogen (Ntot), Corg/Ntot, δ13Corg, δ15N, calcium carbonate (CaCO3), and grain size were analyzed in 70 surface samples and 19 short cores from the southwestern Portuguese shelf. Perylene and USEPA-16 PAHs were quantified in a subset of these samples. The findings suggest that organic matter derives from a mix of terrestrial and marine sources, outlined by Corg, Ntot, and isotopic signatures. Perylene combined with δ13Corg was used to identify the main PAH sources in these environments. Diagnostic perylene ratios revealed contributions from natural sources in the Tagus region and contaminated materials from the Sado Dredged Disposal Site, with additional perylene in Sines linked to atmospheric deposition of pyrogenic sources. A significant correlation between perylene and USEPA-16 PAHs indicates natural and anthropogenic inputs from the Tagus. This multiproxy approach-combining USEPA-16ΣPAHs, perylene, and δ13Corg-offers insights for assessing environmental risks and guiding marine environmental management according to the MSFD.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/373410
https://api.elsevier.com/content/abstract/scopus_id/85209942568
url http://hdl.handle.net/10261/373410
https://api.elsevier.com/content/abstract/scopus_id/85209942568
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Marine pollution bulletin
https://doi.org/10.1016/j.marpolbul.2024.117303
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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