Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.envres.2022.114473 http://hdl.handle.net/11449/247705 |
Resumo: | Persistent organic pollutants (POPs) were analyzed in 136 blubber samples of Franciscana dolphins from Brazil (Pontoporia blainvillei), which is the most threatened dolphin in the Southwestern Atlantic. The dolphins were caught by the fishery fleet and collected from 2000 to 2018 in three regions of São Paulo state: northern São Paulo (SPN), central São Paulo (SPC), and southern São Paulo (SPS). The POPs analyzed in this study were polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDTs), Mirex, hexachlorobenzene (HCB), chlordane compounds (CHLs), hexachlorocyclohexane isomers (HCHs), and polybrominated diphenyl ethers (PBDEs). The concentrations ranged from 36 to 7200 ng g−1 lipid weight (lw) and 113–42200 ng g−1 lw for predominant compounds DDTs and PCBs, respectively. Similar profiles of PCB congeners were observed with a predominance of hexachlorinated compounds, representing approximately 50% of the total PCB amount; the highest PCB concentrations were observed from Baixada Santista (SPC) proximate to a highly urbanized and industrial coastal area. Significant differences were observed between the sexes and maturity of dolphins, mainly for PCBs, DDTs, and Mirex. In general, POPs other than HCB in Franciscana dolphins showed downward temporal trends, matching the regulatory periods for restricting and/or banning these compounds. Although POP concentrations are declining, PCB levels remain high in small dolphins, suggesting adverse health effects on Franciscanas. As organic contaminants are one of the numerous threats Franciscanas have been vulnerable to along the Brazilian coast, we recommend monitoring POPs levels every five years to check for declining (or stabilizing) trends. |
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Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern AtlanticBrazilCetaceanDichlorodiphenyltrichloroethane (DDTs)Polychlorinated biphenyls (PCBs)Temporal trendPersistent organic pollutants (POPs) were analyzed in 136 blubber samples of Franciscana dolphins from Brazil (Pontoporia blainvillei), which is the most threatened dolphin in the Southwestern Atlantic. The dolphins were caught by the fishery fleet and collected from 2000 to 2018 in three regions of São Paulo state: northern São Paulo (SPN), central São Paulo (SPC), and southern São Paulo (SPS). The POPs analyzed in this study were polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDTs), Mirex, hexachlorobenzene (HCB), chlordane compounds (CHLs), hexachlorocyclohexane isomers (HCHs), and polybrominated diphenyl ethers (PBDEs). The concentrations ranged from 36 to 7200 ng g−1 lipid weight (lw) and 113–42200 ng g−1 lw for predominant compounds DDTs and PCBs, respectively. Similar profiles of PCB congeners were observed with a predominance of hexachlorinated compounds, representing approximately 50% of the total PCB amount; the highest PCB concentrations were observed from Baixada Santista (SPC) proximate to a highly urbanized and industrial coastal area. Significant differences were observed between the sexes and maturity of dolphins, mainly for PCBs, DDTs, and Mirex. In general, POPs other than HCB in Franciscana dolphins showed downward temporal trends, matching the regulatory periods for restricting and/or banning these compounds. Although POP concentrations are declining, PCB levels remain high in small dolphins, suggesting adverse health effects on Franciscanas. As organic contaminants are one of the numerous threats Franciscanas have been vulnerable to along the Brazilian coast, we recommend monitoring POPs levels every five years to check for declining (or stabilizing) trends.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Cetacean Society InternationalSociety for Marine MammalogyFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Instituto Oceanográfico – Universidade de São Paulo, 05508-120 Praça do Oceanográfico, 191, São PauloInstituto de Biofísica Carlos Chagas Filho- Universidade Federal do Rio de Janeiro Av. Carlos Chagas Filho 373, Rio de JaneiroObservatoire Pelagis UMS 3462- La Rochelle Université - CNRS, 5 allées de l'océanCentro de Biologia Molecular e Ambiental (CBMA) Departamento de Biologia Universidade do Minho Campus GualtarInstituto de Biociências – Universidade Estadual Paulista – UNESP câmpus do Litoral Paulista, São VicenteFaculdade de Medicina Veterinária e Zootecnia - Universidade de São Paulo, São PauloInstituto de Biociências – Universidade Estadual Paulista – UNESP câmpus do Litoral Paulista, São VicenteCAPES: 001FAPESP: 05/57431–7FAPESP: 2010/51323–6FAPESP: 2016/18348–1CNPq: PQ 305373/2018–8CNPq: PQ 308136/2020–9CNPq: PQ 308331/2010–9CNPq: PQ 311396/2020–8Universidade de São Paulo (USP)Universidade Federal do Rio de Janeiro (UFRJ)UMS 3462- La Rochelle Université - CNRSUniversidade do MinhoUniversidade Estadual Paulista (UNESP)Montone, Rosalinda C.Alonso, Mariana B.Santos, Marcos César O.Méndez-Fernandez, PaulaTaniguchi, SatieBarbosa, Ana Paula M.Gonçalves, Renato M.Padilha, Janeide de AssisBertozzi, Carolina [UNESP]da Silva, JosileneMarigo, JulianaPereira, Antonio Derley S.Lourenço, Rafael A.2023-07-29T13:23:36Z2023-07-29T13:23:36Z2023-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.envres.2022.114473Environmental Research, v. 216.1096-09530013-9351http://hdl.handle.net/11449/24770510.1016/j.envres.2022.1144732-s2.0-85139230465Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEnvironmental Researchinfo:eu-repo/semantics/openAccess2023-07-29T13:23:36Zoai:repositorio.unesp.br:11449/247705Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:53:59.119011Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
title |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
spellingShingle |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic Montone, Rosalinda C. Brazil Cetacean Dichlorodiphenyltrichloroethane (DDTs) Polychlorinated biphenyls (PCBs) Temporal trend |
title_short |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
title_full |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
title_fullStr |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
title_full_unstemmed |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
title_sort |
Temporal trends of persistent organic pollutant contamination in Franciscana dolphins from the Southwestern Atlantic |
author |
Montone, Rosalinda C. |
author_facet |
Montone, Rosalinda C. Alonso, Mariana B. Santos, Marcos César O. Méndez-Fernandez, Paula Taniguchi, Satie Barbosa, Ana Paula M. Gonçalves, Renato M. Padilha, Janeide de Assis Bertozzi, Carolina [UNESP] da Silva, Josilene Marigo, Juliana Pereira, Antonio Derley S. Lourenço, Rafael A. |
author_role |
author |
author2 |
Alonso, Mariana B. Santos, Marcos César O. Méndez-Fernandez, Paula Taniguchi, Satie Barbosa, Ana Paula M. Gonçalves, Renato M. Padilha, Janeide de Assis Bertozzi, Carolina [UNESP] da Silva, Josilene Marigo, Juliana Pereira, Antonio Derley S. Lourenço, Rafael A. |
author2_role |
author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Federal do Rio de Janeiro (UFRJ) UMS 3462- La Rochelle Université - CNRS Universidade do Minho Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Montone, Rosalinda C. Alonso, Mariana B. Santos, Marcos César O. Méndez-Fernandez, Paula Taniguchi, Satie Barbosa, Ana Paula M. Gonçalves, Renato M. Padilha, Janeide de Assis Bertozzi, Carolina [UNESP] da Silva, Josilene Marigo, Juliana Pereira, Antonio Derley S. Lourenço, Rafael A. |
dc.subject.por.fl_str_mv |
Brazil Cetacean Dichlorodiphenyltrichloroethane (DDTs) Polychlorinated biphenyls (PCBs) Temporal trend |
topic |
Brazil Cetacean Dichlorodiphenyltrichloroethane (DDTs) Polychlorinated biphenyls (PCBs) Temporal trend |
description |
Persistent organic pollutants (POPs) were analyzed in 136 blubber samples of Franciscana dolphins from Brazil (Pontoporia blainvillei), which is the most threatened dolphin in the Southwestern Atlantic. The dolphins were caught by the fishery fleet and collected from 2000 to 2018 in three regions of São Paulo state: northern São Paulo (SPN), central São Paulo (SPC), and southern São Paulo (SPS). The POPs analyzed in this study were polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDTs), Mirex, hexachlorobenzene (HCB), chlordane compounds (CHLs), hexachlorocyclohexane isomers (HCHs), and polybrominated diphenyl ethers (PBDEs). The concentrations ranged from 36 to 7200 ng g−1 lipid weight (lw) and 113–42200 ng g−1 lw for predominant compounds DDTs and PCBs, respectively. Similar profiles of PCB congeners were observed with a predominance of hexachlorinated compounds, representing approximately 50% of the total PCB amount; the highest PCB concentrations were observed from Baixada Santista (SPC) proximate to a highly urbanized and industrial coastal area. Significant differences were observed between the sexes and maturity of dolphins, mainly for PCBs, DDTs, and Mirex. In general, POPs other than HCB in Franciscana dolphins showed downward temporal trends, matching the regulatory periods for restricting and/or banning these compounds. Although POP concentrations are declining, PCB levels remain high in small dolphins, suggesting adverse health effects on Franciscanas. As organic contaminants are one of the numerous threats Franciscanas have been vulnerable to along the Brazilian coast, we recommend monitoring POPs levels every five years to check for declining (or stabilizing) trends. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T13:23:36Z 2023-07-29T13:23:36Z 2023-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.envres.2022.114473 Environmental Research, v. 216. 1096-0953 0013-9351 http://hdl.handle.net/11449/247705 10.1016/j.envres.2022.114473 2-s2.0-85139230465 |
url |
http://dx.doi.org/10.1016/j.envres.2022.114473 http://hdl.handle.net/11449/247705 |
identifier_str_mv |
Environmental Research, v. 216. 1096-0953 0013-9351 10.1016/j.envres.2022.114473 2-s2.0-85139230465 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Environmental Research |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
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Repositório Institucional da UNESP |
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Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129261838532608 |