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Macroplastic retention on river floodplains following flood events

Zenodo (CERN European Organization for Nuclear Research) 2024 Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Louise Schreyere, Rahel Hauk Louise Schreyere, Louise Schreyere, Louise Schreyere, Rahel Hauk Martine van der Ploeg, Martine van der Ploeg, Rahel Hauk Martine van der Ploeg, Rahel Hauk Rahel Hauk Rahel Hauk Martine van der Ploeg, Rahel Hauk Rahel Hauk Rahel Hauk Tim Van Emmerik, Tim Van Emmerik, Martine van der Ploeg, Tim Van Emmerik, Tim Van Emmerik, Martine van der Ploeg, Ryan Teuling, Rahel Hauk Martine van der Ploeg, Ryan Teuling, Rahel Hauk Rahel Hauk Martine van der Ploeg, Ryan Teuling, Ryan Teuling, Remko Uijlenhoet, Rahel Hauk Nicholas Wallerstein, Remko Uijlenhoet, Remko Uijlenhoet, Nicholas Wallerstein, Remko Uijlenhoet, Martine van der Ploeg, Rahel Hauk Martine van der Ploeg, Rahel Hauk Nicholas Wallerstein, Nicholas Wallerstein, Nicholas Wallerstein, Nicholas Wallerstein, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Nicholas Wallerstein, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Martine van der Ploeg, Remko Uijlenhoet, Rahel Hauk

Summary

Researchers examined macroplastic retention on river floodplains following flood events, quantifying how much plastic debris is deposited beyond river channels during high-flow conditions and assessing remobilization potential. The study provided data supporting the role of floodplains as significant sinks and secondary sources of macroplastics in riverine transport to the sea.

Models

Human

Study Type Environmental

Microplastics are very often generated by the degradation and fragmentation of macroplastics. Rivers are an important pathway for the delivery of both micro and macroplastics to the sea, which also impact the fluvial fauna and flora. Recent evidence demonstrated that most macroplastics in rivers are retained within floodplains compared to channel retention. During floods, increased macroplastic transport can lead to amplified deposition and remobilization on floodplains. Understanding how macroplastics are retained and remobilized on floodplains is crucial as these represent the river's main macroplastic reservoir. In this study, we investigate the impacts of floods on macroplastic retention in the floodplains of the Dutch Meuse and IJssel rivers. We use observations to characterize the longitudinal and cross-sectional spatial distribution; and retention patterns within different land-cover features on these floodplains. Building on our empirical findings, we develop a model for identifying locations with high retention potential, which can be used for river reaches lacking direct observations. Our observations span two flood events of different magnitudes and characteristics. One is a centennial flood that impacted the Meuse river in July 2021. The second corresponds to a bi-annual high water event, which impacted the IJssel river in December 2023 - January 2024. Our findings reveal that riparian vegetation (trees, bushes, shrubs and mixed vegetation) retain 89 Also see: https://micro2024.sciencesconf.org/558809/document

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