Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/18499 |
Resumo: | Plastic pollution has been observed in many marine environments surrounding the Iberian Peninsula, from the surface water to deeper waters, yet studies on their pathways and accumulation areas are still limited. In this study, a global ocean reanalysis model was combined with a particle-tracking Lagrangian model to provide insights into the pathways and accumulation patterns of microplastics originating in southern Portuguese coastal waters (SW Iberian). The study investigates microplastics floating on the surface as well as submerged at different water depths. Model results suggest that the North Atlantic Gyre is the main pathway for microplastics in surface and subsurface waters, transporting the microplastics southwards and eastwards towards the Mediterranean Sea and the Canary Islands. Currents flowing out of the Mediterranean Sea act as the main pathway for microplastics in deep waters, transporting the microplastics along western Iberia. An average residence time of twenty days in the coastal waters suggests that microplastics do not accumulate close to their sources due to their relatively fast transport to adjacent ocean areas. Notably, a significant proportion of microplastics leave the model domain at all depths, implying that SW Iberia may act as a source of microplastics for the adjacent areas, including the Mediterranean Sea, Morocco, the Canary Islands, Western Iberia, and the Bay of Biscay. |
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Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approachMicroplasticsPathwaysAccumulationSW IberiaNumerical modelPlastic pollution has been observed in many marine environments surrounding the Iberian Peninsula, from the surface water to deeper waters, yet studies on their pathways and accumulation areas are still limited. In this study, a global ocean reanalysis model was combined with a particle-tracking Lagrangian model to provide insights into the pathways and accumulation patterns of microplastics originating in southern Portuguese coastal waters (SW Iberian). The study investigates microplastics floating on the surface as well as submerged at different water depths. Model results suggest that the North Atlantic Gyre is the main pathway for microplastics in surface and subsurface waters, transporting the microplastics southwards and eastwards towards the Mediterranean Sea and the Canary Islands. Currents flowing out of the Mediterranean Sea act as the main pathway for microplastics in deep waters, transporting the microplastics along western Iberia. An average residence time of twenty days in the coastal waters suggests that microplastics do not accumulate close to their sources due to their relatively fast transport to adjacent ocean areas. Notably, a significant proportion of microplastics leave the model domain at all depths, implying that SW Iberia may act as a source of microplastics for the adjacent areas, including the Mediterranean Sea, Morocco, the Canary Islands, Western Iberia, and the Bay of Biscay.MDPISapientiaRosas, EloahMartins, FlávioTosic, MarkoJaneiro, JoãoMendonça, FernandoMills, Lara2022-11-12T10:32:19Z2022-11-032022-11-10T14:27:54Z2022-11-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/18499engJournal of Marine Science and Engineering 10 (11): 1640 (2022)10.3390/jmse101116402077-1312info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:30:44Zoai:sapientia.ualg.pt:10400.1/18499Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:08:15.007555Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
title |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
spellingShingle |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach Rosas, Eloah Microplastics Pathways Accumulation SW Iberia Numerical model |
title_short |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
title_full |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
title_fullStr |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
title_full_unstemmed |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
title_sort |
Pathways and hot spots of floating and submerged microplastics in Atlantic Iberian marine waters: a modelling approach |
author |
Rosas, Eloah |
author_facet |
Rosas, Eloah Martins, Flávio Tosic, Marko Janeiro, João Mendonça, Fernando Mills, Lara |
author_role |
author |
author2 |
Martins, Flávio Tosic, Marko Janeiro, João Mendonça, Fernando Mills, Lara |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Rosas, Eloah Martins, Flávio Tosic, Marko Janeiro, João Mendonça, Fernando Mills, Lara |
dc.subject.por.fl_str_mv |
Microplastics Pathways Accumulation SW Iberia Numerical model |
topic |
Microplastics Pathways Accumulation SW Iberia Numerical model |
description |
Plastic pollution has been observed in many marine environments surrounding the Iberian Peninsula, from the surface water to deeper waters, yet studies on their pathways and accumulation areas are still limited. In this study, a global ocean reanalysis model was combined with a particle-tracking Lagrangian model to provide insights into the pathways and accumulation patterns of microplastics originating in southern Portuguese coastal waters (SW Iberian). The study investigates microplastics floating on the surface as well as submerged at different water depths. Model results suggest that the North Atlantic Gyre is the main pathway for microplastics in surface and subsurface waters, transporting the microplastics southwards and eastwards towards the Mediterranean Sea and the Canary Islands. Currents flowing out of the Mediterranean Sea act as the main pathway for microplastics in deep waters, transporting the microplastics along western Iberia. An average residence time of twenty days in the coastal waters suggests that microplastics do not accumulate close to their sources due to their relatively fast transport to adjacent ocean areas. Notably, a significant proportion of microplastics leave the model domain at all depths, implying that SW Iberia may act as a source of microplastics for the adjacent areas, including the Mediterranean Sea, Morocco, the Canary Islands, Western Iberia, and the Bay of Biscay. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-11-12T10:32:19Z 2022-11-03 2022-11-10T14:27:54Z 2022-11-03T00:00:00Z |
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://hdl.handle.net/10400.1/18499 |
url |
http://hdl.handle.net/10400.1/18499 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Marine Science and Engineering 10 (11): 1640 (2022) 10.3390/jmse10111640 2077-1312 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133328349069312 |