Cited by 920Microplastics and Plastic PollutionPharmaceutical and Antibiotic Environmental ImpactsAquatic Ecosystems and Phytoplankton Dynamics

Fate of nano- and microplastic in freshwater systems: A modeling study

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Besseling, Ellen, Quik, Joris T.K., Sun, Muzhi, Koelmans, Albert A.·2017·Environmental Pollution

Abstract

Riverine transport to the marine environment is an important pathway for microplastic. However, information on fate and transport of nano- and microplastic in freshwater systems is lacking. Here we present scenario studies on the fate and transport of nano-to millimetre sized spherical particles like microbeads (100 nm-10 mm) with a state of the art spatiotemporally resolved hydrological model. The model accounts for advective transport, homo- and heteroaggregation, sedimentation-resuspension, polymer degradation, presence of biofilm and burial. Literature data were used to parameterize the model and additionally the attachment efficiency for heteroaggregation was determined experimentally. The attachment efficiency ranged from 0.004 to 0.2 for 70 nm and 1050 nm polystyrene particles aggregating with kaolin or bentonite clays in natural freshwater. Modeled effects of polymer density (1-1.5 kg/L) and biofilm formation were not large, due to the fact that variations in polymer density are largely overwhelmed by excess mass of suspended solids that form heteroaggregates with microplastic. Particle size had a dramatic effect on the modeled fate and retention of microplastic and on the positioning of the accumulation hot spots in the sediment along the river. Remarkably, retention was lowest (18-25%) for intermediate sized particles of about 5 μm, which implies that the smaller submicron particles as well as larger micro- and millimetre sized plastic are preferentially retained. Our results suggest that river hydrodynamics affect microplastic size distributions with profound implications for emissions to marine systems.

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Crossref · 10.1016/j.envpol.2016.10.001

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Authors
Besseling, E., Quik, J. T. K., Sun, M., & Koelmans, A. A.
Affiliations
  • Wageningen Marine Research (NL)
  • National Institute for Public Health and the Environment (NL)
  • Wageningen University & Research (NL)
Corresponding author
Besseling, Ellen
Venue
Environmental Pollution
Publisher
Elsevier BV
Published
2017-01
Volume
220
Issue
Pt A
Pages
540-548
ISSN
0269-7491 (ISSN-L)
OpenAlex
W2531072038
Cited by
919
References
70
Citations by year
2026: 81 · 2025: 119 · 2024: 130 · 2023: 121 · 2022: 134 · 2021: 118 · 2020: 88 · 2019: 69 · 2018: 35 · 2017: 23
FWCI
23.12
Type
journal article
Language
en
Open access
Locations
  • Environmental Pollution (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • Rivm Repository (Netherlands National Institute for Public Health and the Environment) (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Funders
NanoNextNL, a micro and nanotechnology consortium of the Government of the Netherlands
Topics
  • Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
  • Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
Keywords
microplastics, nanoplastics, freshwater ecosystems, river transport, heteroaggregation, particle size effects, biofilm, polymer degradation, particle retention, microbeads, polystyrene particles, river hydrodynamics, particle size distribution
MeSH terms
Fresh Water, Models, Theoretical, Particle Size, Plastics, Polymers, Polystyrenes, Water Pollutants, Chemical, Geologic Sediments, Rivers, Nanostructures, Hydrodynamics

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