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Spatial distribution and temporal trends of butyltin compounds (TBT, DBT & MBT) in short sediment cores of the SW Portuguese Shelf (western Iberian Margin, NE Atlantic)

2023Journal article Open access
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dc.contributor.authorMil-Homens, Mário
dc.contributor.authorAlmeida, C. Marisa R.
dc.contributor.authorDias, Sofia
dc.contributor.authorSoares, Warley
dc.contributor.authorvan Gaever, Piet
dc.contributor.authorde Stigter, Henko
dc.contributor.authorSantos, Miguel M.
dc.contributor.authorSantana, André
dc.contributor.authorFreitas, Mafalda
dc.contributor.authorAbrantes, Fatima
dc.contributor.authorCaetano, Miguel
dc.date.accessioned2023-10-25T10:28:23Z
dc.date.available2023-10-25T10:28:23Z
dc.date.issued2023
dc.description.abstractSpatial patterns and temporal trends of the butyltin compounds tributyltin (TBT), dibutyltin (DBT), and mon-obutyltin (MBT) were investigated in a set of sediment samples collected along the SW Portuguese continental shelf. This region did not reach the Good Environmental Status (GES) in accordance with the Marine Strategy Framework Directive (MSFD) during a first evaluation carried out in 2012. Overall, MBT and DBT were the predominant organotin species detected, but high concentrations of TBT were found in and around disposal sites for dredge sludge derived from the dredging in navigation channels, harbours, and shipyard facilities of the Tagus and Sado estuaries. Although Portuguese regulations for monitoring sediment quality in relation to dredging activities consider only PAH, PCB and HCB, they also dictate that other organic contaminants such as butyltin compounds (BTs) should be monitored if suspicion of high values exists, but no action limits are defined for these (MAOTDR, 2007). Without action limits, the monitoring recommendation given in the regulations is not put into practice. Considering their toxicity, BT derivates should be integrated in the legislation, because they represent an environmental threat in the relocation of dredged material, especially when derived from harbour and shipyards areas. Based on this study, we recommend giving more attention to the amounts and impacts of BTs in sediments at dredged material disposal sites (DMDS) and their surroundings. Or even better, in order to be more efficient, monitoring should be done at the source of the dredged materials and not at the sink. In case it is not done, the monitoring of concentrations of TBT (and other BTs) in sediments and organisms, including imposex studies, at all Portuguese sites for disposal of dredged material receiving slightly to strongly contami-nated dredged material must be developed.pt_PT
dc.description.sponsorshipMAR-01.04.02-FEAMP-0013; ALT20-03-0145-FEDER-000013; PINFRA/22157/2016-EMSO-PT; LA/P/0101/2020pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.scitotenv.2023.165872pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.1/20088
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationTsunami hazard assessment of the Lisbon city associated to the Tagus delta landslide.
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationInterdisciplinary Centre of Marine and Environmental Research
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPortuguese shelfpt_PT
dc.subjectMarine sedimentspt_PT
dc.subjectButyltin compoundspt_PT
dc.subjectTemporal variationpt_PT
dc.titleSpatial distribution and temporal trends of butyltin compounds (TBT, DBT & MBT) in short sediment cores of the SW Portuguese Shelf (western Iberian Margin, NE Atlantic)pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleTsunami hazard assessment of the Lisbon city associated to the Tagus delta landslide.
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleInterdisciplinary Centre of Marine and Environmental Research
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FCTA-GEO%2F31885%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04423%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04423%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.citation.startPage165872pt_PT
oaire.citation.titleScience of The Total Environmentpt_PT
oaire.citation.volume900pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameSantana
person.familyNameAbrantes
person.givenNameAndré
person.givenNameFatima
person.identifier.ciencia-id821B-C306-6676
person.identifier.ciencia-id021D-CA76-20D2
person.identifier.orcid0000-0002-9110-0212
person.identifier.ridB-5985-2013
person.identifier.scopus-author-id16030759200
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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