Search

During the July 2021 European floods approximately 8 million pieces of plastic dairy packaging were flushed from a severely damaged dairy processing facility located at the Vesdre river in Belgium. Some of these dairy packaging 'buttertubs' were ultimately flushed into the Meuse river and counted on riverbanks along the Dutch Meuse between July 2021 and July 2023. In addition to recording when and where they were found, some were collected for analysis on their development of mass over the two years between July 2021 - July 2023. The article attached to this dataset is called "Flood-induced buttertub spill reveals riverine plastic transport dynamics" and has the DOI 10.1186/s12302-024-00962-1. Dataset 1 contains the locations where buttertubs were found over the two years, with the location coordinates and sampled area of riverbank. Dataset 2 contains the mass analysis of the collected buttertubs before and after they were cleaned and dried. Dataset 3 contains pictures of the buttertubs analyzed for their mass prior to cleaning.

Litter sampling on riverbanks along the Dutch Meuse river, between July 22, 2021 and August 4, 2021. Litter items on riverbanks covered by an ongoing montoring were sampled immediately after the July 2021 European floods. All litter items in the measurement area on each riverbank were counted and classified into the River-OSPAR categories (except wooden litter items). The article attached to this dataset is called "Macroplastic deposition and flushing in the Meuse river following the July 2021 European floods" and has the doi https://doi.org/10.1088/1748-9326/ad0768. The dataset contains the litter sampling in July and August 2021. Dataset 1 contains the complete raw dataset that is more extensive than the dataset used for the publication and dataset 2 contains the simplified dataset underlying the publication.

Trajectories (58) of GPS trackers affixed to floating macroplastic litter items released in the Saigon River, Ho Chi Minh City, Vietnam.

We measured floating plastic in the Rhine (Netherlands to Switzerland), Odaw (Ghana) and Mekong (Cambodia) rivers using visual counting from bridges. We also measured riverbank and terrestrial plastic density in the Odaw river through physical sampling and classification. We measured river plastic pollution in three rivers across relevant gradients, including geography, hydrology, and plastic pollution levels. In the Rhine basin (Switzerland, France, Germany, the Netherlands) we showed that urban areas and tributaries may act as entry points of plastic pollution. For the Odaw basin (Ghana) we compared floating, terrestrial and riverbank plastics, identifying source and accumulation zones. Finally, in the Mekong river (Cambodia) we quantified the contribution of the city of Phnom Penh to plastic pollution through quantifying the plastic mass balance in the Mekong-Tonle Sap-Bassac region.

The files in this repository belong to the manuscript "Y.A.M. Mellink, T.H.M. van Emmerik, and T. Mani (2023). Wind- and rain-driven macroplastic mobilization and transport on land" (under review). We uploaded (1) the complete dataset containing the plastic displacements and velocities, (2) the Matlab script that was used to convert pixel coordinates to real coordinates, and (3) a set of files that serve as an example of the data analysis procedure. For a more detailed explanation of the files uploaded in this repository we refer to the README.pdf.

This database is the supplementary material of Tasseron et al., (2022): 'Towards Robust River Plastic Detection: Combining Lab and Field-based Hyperspectral Imagery' [Submitted and currently under review], preprint available online at https://doi.org/10.31223/X5RW7V. The dataset contains raw images, MATLAB scripts used for training classifier algorithms, trained pipelines, required toolboxes and labelled training datasets used in subsequent analyses.

This is the replication dataset corresponding to the publication "Sample size requirements for riverbank macrolitter characterization". We refer to this publication for the data description. Additionally the document contents_data_publication.pdf will provide an overview of the contents of this database.

This dataset is the supplementary material of Tasseron et al., (2022/2023): 'Amsterdam urban water system as entry point of river plastic pollution' [Submitted to a scientific journal for review]. The dataset contains the master datasheet [.xlsx] used for the analyses in the matlab script [.m], to determine emissions of floating plastic from the amsterdam urban water system to the IJ river.

We measured floating plastic and other anthropogenic litter at 26 measurement locations distributed across the Dutch reaches of the Rhine (IJssel, Waal, Nederrijn) and Meuse rivers (see Figure 1) between 28 January and 7 December, 2021. The Rhine enters the Netherlands from Germany at Spijk, and splits into the main Waal, IJssel and Nederrijn. The Waal is the main branch, and joins the Nederrijn-Lek branch at Rotterdam before flowing into the North Sea. The IJssel flows into Lake IJssel at Kampen. The Meuse enters the Netherlands from Belgium at Eijsden, and discharging into the tidal Hollands Diep estuary. Here, the Meuse is joined by a Rhine distributary before reaching the North Sea. Floating macroplastic and macrolitter (>0.5 cm) were measured using the visual counting method, for which all items floating at the surface are counted from bridges. Only bridges that are safe and legally accessible, e.g. presence of pedestrian or bicycle paths, were selected. At each location, three to twelve observation points were selected, depending on the river width. The majority of the locations had five or six points (23 out of 26), two locations had three points, and only the downstream Meuse location had twelve points. For a measurement, all visible floating items were counted within a predefined observation track. The minimum observable item size depends on the bridge height (8-20 m), but was estimated to be at least 2.5 cm for all locations. Note that the width of the observation tracks depends on the field of view and the height above the water, and there varied between bridges and between points on the same bridge (12-34 m). The observation track width was quantified by selecting a reference object (e.g. bridge column, buoy, orange peels) and measuring the distance to the observation point. The sum of the observation track widths per bridge covered between 25% and 85% of the total river width. On each measurement day each point was measured four times for a five-minute

The dataset is comprised of a total of 3,688 UAV images. All UAV images were taken over the Saigon river, Vietnam. UAV images were taken across the river channel, with a frequency of one to four flights per measurement day. Each flight consisted of two overpasses across the Saigon river, with a range of 41 to 65 images taken per flight. UAV surveys were carried at a constant elevation of approximately 10 m above the water level. The dataset is organized in subfolders by date and flight.

Experimental rising and settling velocities in a stable fresh water column Data generated in the research of Kuizenga et.al. (2021)

This dataset presents the observations from a monitoring campaign conducted at Ho Chi Minh City (HCMC), Vietnam, in April-June 2020. The campaign focused on the Saigon river and aimed at quantifying the role of water hyacinths in macroplastic transport and accumulation. The first sheet pertains to the visual counting of floating macroplastic items from the Thu Thiem bridge at HCMC. It details the number of macroplastic items counted within water hyacinths (entangled) and outside (free-floating). The second and third sheet present the results from aerial surveys conducted on 23 May 2020 with a UAV. The second sheet details all floating macroplastic items identified through manual labelling on the drone imagery and provides information on their size and polymer composition The third sheet presents the results from the identification of floating vegetation (water hyacinths) through color segmentation and their areas.