Abiotic plastic leaching contributes to ocean acidification
6 pages, 4 figures, 2 tables.-- Data availability: The data are included in the manuscript Ocean acidification and plastic pollution are considered as potential planetary boundary threats for which crossing certain thresholds could be very harmful for the world's societies and ecosystems well-b...
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ftcsic:oai:digital.csic.es:10261/286149 2024-02-11T10:07:26+01:00 Abiotic plastic leaching contributes to ocean acidification Romera-Castillo, Cristina Lucas, Arturo Mallenco Fornies, Rebeca Briones-Rizo, Marina Calvo, Eva María Pelejero, Carles Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) 2023-01 http://hdl.handle.net/10261/286149 https://doi.org/10.1016/j.scitotenv.2022.158683 https://doi.org/10.13039/501100011033 en eng Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109889RJ-I00/ES/CHARACTERIZATION OF DISSOLVED ORGANIC MATTER LEACHED FROM PLASTICS INTO SEAWATER AND ITS IMPACT ON MARINE MICROBES/ info:eu-repo/grantAgreement/MCIU//RED2018-102345-T Publisher's version https://doi.org/10.1016/j.scitotenv.2022.158683 Sí Science of the Total Environment 854: 158683 (2023) 0048-9697 CEX2019-000928-S http://hdl.handle.net/10261/286149 doi:10.1016/j.scitotenv.2022.158683 1879-1026 http://dx.doi.org/10.13039/501100011033 open Plastic leaching Ocean acidification DOC leaching Microplastics http://metadata.un.org/sdg/12 Responsible Consumption and Production artículo 2023 ftcsic https://doi.org/10.1016/j.scitotenv.2022.15868310.13039/501100011033 2024-01-16T11:32:43Z 6 pages, 4 figures, 2 tables.-- Data availability: The data are included in the manuscript Ocean acidification and plastic pollution are considered as potential planetary boundary threats for which crossing certain thresholds could be very harmful for the world's societies and ecosystems well-being. Surface oceans have acidified around 0.1 units since the Industrial Revolution, and the amount of plastic reaching the ocean in 2018 was quantified to 13 million metric tonnes. Currently, both ocean threats are worsening with time. Plastic leaching is known to alter the biogeochemistry of the ocean through the release of dissolved organic matter. However, its impact in the inorganic chemistry of the seawater is less studied. Here we show, from laboratory experiments, that abiotic plastic degradation induces a decrease in seawater pH, particularly if the plastic is already aged, as that found in the ocean. The pH decrease is enhanced by solar radiation, and it is probably induced from a combination of the release of organic acids and the production of CO2. It is also related to the amount of leached dissolved organic carbon, with higher acidification as leaching increases. In coastal areas, where plastic debris accumulates in large quantities, plastic leaching could lead to a seawater pH decrease up to 0.5 units. This is comparable to the projected decrease induced in surface oceans by the end of the twenty-first century for the most pessimistic anthropogenic emissions scenarios This work and C.R.-C.'s involvement were supported by a “Proyecto I+D+I Jóvenes Investigadores-2019” (PID2019-109889RJ-I00) funded by MCIN/AEI 10.13039/501100011033. This work acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) and the Thematic Network of Micro- and Nanoplastics in the Environment (RED2018-102345-T, EnviroPlaNet) funded by MCIN/AEI 10.13039/501100011033 Peer reviewed Article in Journal/Newspaper Ocean acidification Digital.CSIC (Spanish National Research Council) Science of The Total Environment 854 158683 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Plastic leaching Ocean acidification DOC leaching Microplastics http://metadata.un.org/sdg/12 Responsible Consumption and Production |
spellingShingle |
Plastic leaching Ocean acidification DOC leaching Microplastics http://metadata.un.org/sdg/12 Responsible Consumption and Production Romera-Castillo, Cristina Lucas, Arturo Mallenco Fornies, Rebeca Briones-Rizo, Marina Calvo, Eva María Pelejero, Carles Abiotic plastic leaching contributes to ocean acidification |
topic_facet |
Plastic leaching Ocean acidification DOC leaching Microplastics http://metadata.un.org/sdg/12 Responsible Consumption and Production |
description |
6 pages, 4 figures, 2 tables.-- Data availability: The data are included in the manuscript Ocean acidification and plastic pollution are considered as potential planetary boundary threats for which crossing certain thresholds could be very harmful for the world's societies and ecosystems well-being. Surface oceans have acidified around 0.1 units since the Industrial Revolution, and the amount of plastic reaching the ocean in 2018 was quantified to 13 million metric tonnes. Currently, both ocean threats are worsening with time. Plastic leaching is known to alter the biogeochemistry of the ocean through the release of dissolved organic matter. However, its impact in the inorganic chemistry of the seawater is less studied. Here we show, from laboratory experiments, that abiotic plastic degradation induces a decrease in seawater pH, particularly if the plastic is already aged, as that found in the ocean. The pH decrease is enhanced by solar radiation, and it is probably induced from a combination of the release of organic acids and the production of CO2. It is also related to the amount of leached dissolved organic carbon, with higher acidification as leaching increases. In coastal areas, where plastic debris accumulates in large quantities, plastic leaching could lead to a seawater pH decrease up to 0.5 units. This is comparable to the projected decrease induced in surface oceans by the end of the twenty-first century for the most pessimistic anthropogenic emissions scenarios This work and C.R.-C.'s involvement were supported by a “Proyecto I+D+I Jóvenes Investigadores-2019” (PID2019-109889RJ-I00) funded by MCIN/AEI 10.13039/501100011033. This work acknowledges the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S) and the Thematic Network of Micro- and Nanoplastics in the Environment (RED2018-102345-T, EnviroPlaNet) funded by MCIN/AEI 10.13039/501100011033 Peer reviewed |
author2 |
Ministerio de Ciencia, Innovación y Universidades (España) Agencia Estatal de Investigación (España) |
format |
Article in Journal/Newspaper |
author |
Romera-Castillo, Cristina Lucas, Arturo Mallenco Fornies, Rebeca Briones-Rizo, Marina Calvo, Eva María Pelejero, Carles |
author_facet |
Romera-Castillo, Cristina Lucas, Arturo Mallenco Fornies, Rebeca Briones-Rizo, Marina Calvo, Eva María Pelejero, Carles |
author_sort |
Romera-Castillo, Cristina |
title |
Abiotic plastic leaching contributes to ocean acidification |
title_short |
Abiotic plastic leaching contributes to ocean acidification |
title_full |
Abiotic plastic leaching contributes to ocean acidification |
title_fullStr |
Abiotic plastic leaching contributes to ocean acidification |
title_full_unstemmed |
Abiotic plastic leaching contributes to ocean acidification |
title_sort |
abiotic plastic leaching contributes to ocean acidification |
publisher |
Elsevier |
publishDate |
2023 |
url |
http://hdl.handle.net/10261/286149 https://doi.org/10.1016/j.scitotenv.2022.158683 https://doi.org/10.13039/501100011033 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109889RJ-I00/ES/CHARACTERIZATION OF DISSOLVED ORGANIC MATTER LEACHED FROM PLASTICS INTO SEAWATER AND ITS IMPACT ON MARINE MICROBES/ info:eu-repo/grantAgreement/MCIU//RED2018-102345-T Publisher's version https://doi.org/10.1016/j.scitotenv.2022.158683 Sí Science of the Total Environment 854: 158683 (2023) 0048-9697 CEX2019-000928-S http://hdl.handle.net/10261/286149 doi:10.1016/j.scitotenv.2022.158683 1879-1026 http://dx.doi.org/10.13039/501100011033 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.scitotenv.2022.15868310.13039/501100011033 |
container_title |
Science of The Total Environment |
container_volume |
854 |
container_start_page |
158683 |
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