Publication
Title
Effect of polymer aging on uptake/release kinetics of metal ions and organic molecules by micro- and nanoplastics : implications for the bioavailability of the associated compounds
Author
Abstract
The main driver of the potential toxicity of micro- and nanoplastics towards biota is often the release of compounds initially present in the plastic, i.e. polymer additives, as well as environmentally acquired metals and/or organic contaminants. Plastic particles degrade in the environment via various mechanisms and at different rates, depending on the particle size/geometry, polymer type, and the prevailing physical and chemical conditions. The rate and extent of polymer degradation has obvious consequences for the uptake/release kinetics and thus bioavailability of compounds associated with plastic particles. Herein we develop a theoretical framework to describe the uptake/release kinetics of metal ions and organic compounds by plastic particles and apply it to analysis of experimental data for pristine and aged micro- and nanoplastics. In particular, we elucidate the contribution of transient processes to the overall kinetics of plastics reactivity towards aquatic contaminants and demonstrate the paramount importance of intraparticulate contaminant diffusion.
Language
English
Source (journal)
Environmental science and technology / American Chemical Society. - Easton, Pa
Publication
Easton, Pa : 2023
ISSN
0013-936X [print]
1520-5851 [online]
DOI
10.1021/ACS.EST.3C05148
Volume/pages
57 :43 (2023) , p. 16552-16563
ISI
001092703300001
Pubmed ID
37856883
Full text (Publisher's DOI)
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Project info
Towards ecological risk assessment of nanoplastics: dynamic considerations.
Novel approaches for the estimation of the use of psychoactive pharmaceuticals and illicit drugs by wastewater analysis.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identifier
Creation 05.11.2023
Last edited 10.01.2024
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