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Sorption and desorption kinetics of PFOS to pristine microplastic

The sorption processes of persistent organic pollutants on microplastics particles are poorly understood. Therefore, the present study investigated the sorption processes of perfluorooctanesulfonate (PFOS) on polyethylene (PE) microplastic particles (MPs) which are representing a prominent environme...

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Autores principales: Cormier, Bettie, Borchet, Flora, Kärrman, Anna, Szot, Marta, Yeung, Leo W. Y., Keiter, Steffen H.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8741692/
https://www.ncbi.nlm.nih.gov/pubmed/34409531
http://dx.doi.org/10.1007/s11356-021-15923-x
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author Cormier, Bettie
Borchet, Flora
Kärrman, Anna
Szot, Marta
Yeung, Leo W. Y.
Keiter, Steffen H.
author_facet Cormier, Bettie
Borchet, Flora
Kärrman, Anna
Szot, Marta
Yeung, Leo W. Y.
Keiter, Steffen H.
author_sort Cormier, Bettie
collection PubMed
description The sorption processes of persistent organic pollutants on microplastics particles are poorly understood. Therefore, the present study investigated the sorption processes of perfluorooctanesulfonate (PFOS) on polyethylene (PE) microplastic particles (MPs) which are representing a prominent environmental pollutant and one of the most abundant microplastic polymers in the aquatic environment, respectively. The focus was set on the investigation of the impact of the particle size on PFOS sorption using four different PE MPs size ranges. The sorption kinetics for 6 months was studied with one selected size range of PE MPs. Besides, the desorption of PFOS from PE MPs under simulated digestive conditions was carried out by using artificial gut fluid mimicking the intestinal juice of fish. The investigation of the size effects of particles over 6 months demonstrated a linear increase of PFOS concentration sorbed onto PE with a decrease of the particle size. Thus, our findings implicate efficient sorption of PFOS onto PE MPs of different sizes. The results showed that PFOS desorbed from the PE MPs into the artificial gut fluid with a rate of 70 to 80%. Besides, a longer exposure of PE MPs to PFOS leads to a higher concentration adsorbed by PE MPs, which may favor the ingestion of higher concentration of PFOS, and thus represents a higher risk to transfer relevant concentrations of PFOS during digestion. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11356-021-15923-x.
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spelling pubmed-87416922022-01-20 Sorption and desorption kinetics of PFOS to pristine microplastic Cormier, Bettie Borchet, Flora Kärrman, Anna Szot, Marta Yeung, Leo W. Y. Keiter, Steffen H. Environ Sci Pollut Res Int Research Article The sorption processes of persistent organic pollutants on microplastics particles are poorly understood. Therefore, the present study investigated the sorption processes of perfluorooctanesulfonate (PFOS) on polyethylene (PE) microplastic particles (MPs) which are representing a prominent environmental pollutant and one of the most abundant microplastic polymers in the aquatic environment, respectively. The focus was set on the investigation of the impact of the particle size on PFOS sorption using four different PE MPs size ranges. The sorption kinetics for 6 months was studied with one selected size range of PE MPs. Besides, the desorption of PFOS from PE MPs under simulated digestive conditions was carried out by using artificial gut fluid mimicking the intestinal juice of fish. The investigation of the size effects of particles over 6 months demonstrated a linear increase of PFOS concentration sorbed onto PE with a decrease of the particle size. Thus, our findings implicate efficient sorption of PFOS onto PE MPs of different sizes. The results showed that PFOS desorbed from the PE MPs into the artificial gut fluid with a rate of 70 to 80%. Besides, a longer exposure of PE MPs to PFOS leads to a higher concentration adsorbed by PE MPs, which may favor the ingestion of higher concentration of PFOS, and thus represents a higher risk to transfer relevant concentrations of PFOS during digestion. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s11356-021-15923-x. Springer Berlin Heidelberg 2021-08-18 2022 /pmc/articles/PMC8741692/ /pubmed/34409531 http://dx.doi.org/10.1007/s11356-021-15923-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Research Article
Cormier, Bettie
Borchet, Flora
Kärrman, Anna
Szot, Marta
Yeung, Leo W. Y.
Keiter, Steffen H.
Sorption and desorption kinetics of PFOS to pristine microplastic
title Sorption and desorption kinetics of PFOS to pristine microplastic
title_full Sorption and desorption kinetics of PFOS to pristine microplastic
title_fullStr Sorption and desorption kinetics of PFOS to pristine microplastic
title_full_unstemmed Sorption and desorption kinetics of PFOS to pristine microplastic
title_short Sorption and desorption kinetics of PFOS to pristine microplastic
title_sort sorption and desorption kinetics of pfos to pristine microplastic
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8741692/
https://www.ncbi.nlm.nih.gov/pubmed/34409531
http://dx.doi.org/10.1007/s11356-021-15923-x
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