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Effect of Nanoplastic Type and Surface Chemistry on Particle Agglomeration over a Salinity Gradient.

ABSTRACT: Agglomeration of nanoplastics in waters can alter their transport and fate in the environment. Agglomeration behavior of 4 nanoplastics differing in core composition (red- or blue-dyed polystyrene) and surface chemistry (plain or carboxylated poly[methyl methacrylate] [PMMA]) was investigated across a salinity gradient. No agglomeration was observed for carboxylated PMMA at any salinity, whereas the plain PMMA agglomerated at only 1 g/L. Both the red and the blue polystyrene agglomerated at 25 g/L. Results indicate that both composition and surface chemistry can impact how environmental salinity affects plastic nanoparticle agglomeration. Environ Toxicol Chem 2021;40:1822-1828. © 2021 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.

SUBMITTER: Shupe HJ

PROVIDER: S-EPMC8225560 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Effect of Nanoplastic Type and Surface Chemistry on Particle Agglomeration over a Salinity Gradient.

Shupe Hannah J HJ Boenisch Kylie M KM Harper Bryan J BJ Brander Susanne M SM Harper Stacey L SL

Environmental toxicology and chemistry 20210504 7

Agglomeration of nanoplastics in waters can alter their transport and fate in the environment. Agglomeration behavior of 4 nanoplastics differing in core composition (red- or blue-dyed polystyrene) and surface chemistry (plain or carboxylated poly[methyl methacrylate] [PMMA]) was investigated across a salinity gradient. No agglomeration was observed for carboxylated PMMA at any salinity, whereas the plain PMMA agglomerated at only 1 g/L. Both the red and the blue polystyrene agglomerated at 25 g ...[more]

PMID: 33661533

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