Filter effect of Rhine floodplain vegetation on microplastic deposition during a single flood event in Germany
Zenodo (CERN European Organization for Nuclear Research)2024
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Hannes Laermanns,
Hannes Laermanns,
Markus Rolf,
Hannes Laermanns,
Markus Rolf,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Christina Bogner,
Markus Rolf,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christina Bogner,
Markus Rolf,
Markus Rolf,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Martin G. J. Löder,
Hannes Laermanns,
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder
Hannes Laermanns,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Markus Rolf,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Markus Rolf,
Christian Laforsch,
Martin G. J. Löder,
Markus Rolf,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Martin G. J. Löder
Christian Laforsch,
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Martin G. J. Löder,
Martin G. J. Löder
Martin G. J. Löder
Martin G. J. Löder
Martin G. J. Löder,
Hannes Laermanns,
Martin G. J. Löder,
Hannes Laermanns,
Hannes Laermanns,
Christina Bogner,
Markus Rolf,
Martin G. J. Löder,
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder,
Martin G. J. Löder
Martin G. J. Löder
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder
Christina Bogner,
Hannes Laermanns,
Hannes Laermanns,
Markus Rolf,
Hannes Laermanns,
Hannes Laermanns,
Hannes Laermanns,
Christian Laforsch,
Christian Laforsch,
Martin G. J. Löder,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Martin G. J. Löder
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Hannes Laermanns,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Christina Bogner,
Christian Laforsch,
Hannes Laermanns,
Christina Bogner,
Hannes Laermanns,
Christian Laforsch,
Christian Laforsch,
Christina Bogner,
Hannes Laermanns,
Christina Bogner,
Hannes Laermanns,
Christian Laforsch,
Christina Bogner,
Christina Bogner,
Martin G. J. Löder
Christian Laforsch,
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder,
Christian Laforsch,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Martin G. J. Löder,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christina Bogner,
Christian Laforsch,
Christina Bogner,
Martin G. J. Löder
Christian Laforsch,
Christian Laforsch,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christian Laforsch,
Christina Bogner,
Christian Laforsch,
Martin G. J. Löder,
Martin G. J. Löder
Christina Bogner,
Martin G. J. Löder
Christian Laforsch,
Martin G. J. Löder,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Christina Bogner,
Christina Bogner,
Christina Bogner,
Martin G. J. Löder,
Christina Bogner,
Christian Laforsch,
Christian Laforsch,
Martin G. J. Löder
Martin G. J. Löder,
Martin G. J. Löder,
Martin G. J. Löder
Summary
Researchers examined the role of floodplain vegetation in controlling microplastic deposition during a single Rhine River flood event in Germany, finding that vegetation cover acts as a physical filter affecting spatial distribution of deposited microplastics beyond the topographic and flood-frequency controls identified in previous studies.
Study Type
Environmental
Many studies have shown that rivers are affected by microplastic contamination. They can transport microplastics but also act as reservoirs where microplastics can accumulate in river beds and banks, temporarily and for long-term. During flooding, these microplastics can be re-mobilized with the sediments and can be re-deposited in floodplains or transported further downstream. While recent studies suggested that the distribution of microplastics in floodplains is controlled by local topography and flood frequency, the role of vegetation cover in the spatial distribution of microplastics is not known. Therefore, we assume that the vegetation cover of the floodplain plays a crucial role for the retention and deposition of flood-introduced microplastics. Additionally, this important aspect for understanding the transport and subsequent long-term accumulation of microplastics in floodplains has not been addressed so far. Thus, this study aims to investigate the filter effect of floodplain grassland vegetation on the deposition of microplastics and natural sediments during a single major river flood. Therefore, we collected vegetation samples with flood deposits in a Rhine floodplain in Northern Cologne (Germany) after a summer flooding in 2021. Control samples were taken from a non-flooded part of the floodplain. The deposits were washed off the plants and the microplastics extracted via density separation. Additionally, we applied an enzymatic-oxidative purification before analysing microplastics in the samples with µ-FPA-FTIR imaging. Our study shows that, (i) higher vegetation biomass led to an increased deposition of natural sediments and small microplastics, (ii) natural sediments and small microplastics seem to follow different sedimentation mechanisms, (iii) comparison with control samples allowed to distinguish between fluvial and atmospheric deposition on grassland by numbers, shape, and size of microplastics. These important information add up to the understanding of microplastic transport, retention and subsequent long-term accumulation of microplastics in floodplains at the interface of fluvial and terrestrial ecosystems. Also see: https://micro2024.sciencesconf.org/559074/document