Assessing the Behavior of Microplastics in Fluvial Systems: Infiltration and Retention Dynamics in Streambed Sediments
Water Resources Research2024
29 citations
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Score: 65
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Sven Frei
Sven Frei
Benjamin Gilfedder,
Franz Dichgans,
Jan H. Fleckenstein,
Franz Dichgans,
Franz Dichgans,
Jan‐Pascal Boos,
Franz Dichgans,
Franz Dichgans,
Benjamin Gilfedder,
Franz Dichgans,
Franz Dichgans,
Franz Dichgans,
Franz Dichgans,
Franz Dichgans,
Franz Dichgans,
Franz Dichgans,
Benjamin Gilfedder,
Franz Dichgans,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Sven Frei
Sven Frei
Jan‐Pascal Boos,
Franz Dichgans,
Sven Frei
Sven Frei
Jan H. Fleckenstein,
Franz Dichgans,
Franz Dichgans,
Sven Frei
Benjamin Gilfedder,
Sven Frei
Sven Frei
Benjamin Gilfedder,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Sven Frei
Jan H. Fleckenstein,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Jan‐Pascal Boos,
Jan H. Fleckenstein,
Jan‐Pascal Boos,
Jan H. Fleckenstein,
Jan H. Fleckenstein,
Sven Frei
Jan H. Fleckenstein,
Jan‐Pascal Boos,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Jan H. Fleckenstein,
Jan H. Fleckenstein,
Jan H. Fleckenstein,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Jan H. Fleckenstein,
Benjamin Gilfedder,
Sven Frei
Jan H. Fleckenstein,
Sven Frei
Sven Frei
Jan H. Fleckenstein,
Benjamin Gilfedder,
Benjamin Gilfedder,
Benjamin Gilfedder,
Jan H. Fleckenstein,
Sven Frei
Jan H. Fleckenstein,
Benjamin Gilfedder,
Sven Frei
Sven Frei
Sven Frei
Benjamin Gilfedder,
Jan H. Fleckenstein,
Sven Frei
Sven Frei
Benjamin Gilfedder,
Sven Frei
Jan H. Fleckenstein,
Benjamin Gilfedder,
Sven Frei
Sven Frei
Jan H. Fleckenstein,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Benjamin Gilfedder,
Jan‐Pascal Boos,
Jan‐Pascal Boos,
Sven Frei
Sven Frei
Sven Frei
Sven Frei
Summary
Scientists used laboratory river-bed simulations to study how microplastics move from surface water down into streambed sediments. Smaller particles (1 micrometer) penetrated deeper into the sediment than larger ones, and higher water flow pushed more particles downward. This research helps explain how microplastics accumulate in river beds, which serve as both drinking water sources and habitats for aquatic organisms.
Study Type
Environmental
Abstract Microplastics (MPs) have been detected ubiquitously in fluvial systems and advective transfer has been proposed as a potential mechanism for the transport of (sub‐) pore‐scale MPs from surface waters into streambed sediments. However, the influence of particle and sediment properties, as well as the hydrodynamic flow regime, on the infiltration behavior and mobility of MPs in streambed sediments remains unclear. In this study, we conducted a series of flume experiments to investigate the effect of particle size (1–10 μm), sediment type (fine and coarse sand), and flow regime (high/low flow) on particle infiltration dynamics in a rippled streambed. Quantification of particles in the flume compartments (surface flow, streambed interface, and in the streambed) was achieved using continuous fluorescence techniques. Results indicated that the maximum infiltration depth into the streambed decreased with increasing particle size (11, 10, and 7 cm for 1, 3, and 10 μm). The highest particle retardation was observed in the fine sediment experiment, where 22% of the particles were still in the streambed at the end of the experiment. Particle residence times were shortest under high flow conditions, suggesting that periods of increased discharge can effectively flush MPs from streambed sediments. This study provides novel insights into the complex dynamics of MP infiltration and retention in streambed sediments and contributes to a better understanding of MPs fate in fluvial ecosystems. Quantitative data from this study can improve existing modeling frameworks for MPs transport and assist in assessing the exposure risk of MPs ingestion by benthic organisms.