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Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget
To better understand unexpectedly low plastic loads at the ocean’s surface compared with inputs, unidentified sinks must be located. Here, we present the microplastic (MP) budget for multi-compartments in the western Arctic Ocean (WAO) and demonstrate that Arctic sediments serve as important current...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10321750/ https://www.ncbi.nlm.nih.gov/pubmed/37406127 http://dx.doi.org/10.1126/sciadv.add2348 |
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author | Kim, Seung-Kyu Kim, Ji-Su Kim, So-Young Song, Nan-Seon La, Hyoung Sul Yang, Eun Jin |
author_facet | Kim, Seung-Kyu Kim, Ji-Su Kim, So-Young Song, Nan-Seon La, Hyoung Sul Yang, Eun Jin |
author_sort | Kim, Seung-Kyu |
collection | PubMed |
description | To better understand unexpectedly low plastic loads at the ocean’s surface compared with inputs, unidentified sinks must be located. Here, we present the microplastic (MP) budget for multi-compartments in the western Arctic Ocean (WAO) and demonstrate that Arctic sediments serve as important current and future sinks for MPs missing from the global budget. We identified an increase of 3% year(−1) in MP deposition from sediment core observations. Relatively elevated MP abundances were found in seawater and surface sediments around the summer sea ice retreat region, implying enhanced MP accumulation and deposition facilitated by the ice barrier. We estimate 15.7 ± 2.30 × 10(16) N and 0.21 ± 0.14 MT as total MP loads in the WAO with 90% (by mass) buried in the post-1930 sediments, which exceeds the global average of the current marine MP load. The slower increase in plastic burial versus production implies a lag in plastic delivery to the Arctic, indicating more pollution in the future. |
format | Online Article Text |
id | pubmed-10321750 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-103217502023-07-06 Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget Kim, Seung-Kyu Kim, Ji-Su Kim, So-Young Song, Nan-Seon La, Hyoung Sul Yang, Eun Jin Sci Adv Earth, Environmental, Ecological, and Space Sciences To better understand unexpectedly low plastic loads at the ocean’s surface compared with inputs, unidentified sinks must be located. Here, we present the microplastic (MP) budget for multi-compartments in the western Arctic Ocean (WAO) and demonstrate that Arctic sediments serve as important current and future sinks for MPs missing from the global budget. We identified an increase of 3% year(−1) in MP deposition from sediment core observations. Relatively elevated MP abundances were found in seawater and surface sediments around the summer sea ice retreat region, implying enhanced MP accumulation and deposition facilitated by the ice barrier. We estimate 15.7 ± 2.30 × 10(16) N and 0.21 ± 0.14 MT as total MP loads in the WAO with 90% (by mass) buried in the post-1930 sediments, which exceeds the global average of the current marine MP load. The slower increase in plastic burial versus production implies a lag in plastic delivery to the Arctic, indicating more pollution in the future. American Association for the Advancement of Science 2023-07-05 /pmc/articles/PMC10321750/ /pubmed/37406127 http://dx.doi.org/10.1126/sciadv.add2348 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Earth, Environmental, Ecological, and Space Sciences Kim, Seung-Kyu Kim, Ji-Su Kim, So-Young Song, Nan-Seon La, Hyoung Sul Yang, Eun Jin Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title | Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title_full | Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title_fullStr | Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title_full_unstemmed | Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title_short | Arctic Ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
title_sort | arctic ocean sediments as important current and future sinks for marine microplastics missing in the global microplastic budget |
topic | Earth, Environmental, Ecological, and Space Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10321750/ https://www.ncbi.nlm.nih.gov/pubmed/37406127 http://dx.doi.org/10.1126/sciadv.add2348 |
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