Shows mismanaged plastic waste (MPW) carried by rivers into the ocean, expressed in kilograms per year. The layer is based on the WRI Resource Watch dataset wat.063 (Meijer et al. 2021), a global set of about 40,000 river-mouth points originally published through the WRI Resource Watch CartoDB SQL API and pre-downloaded into an S3 GeoParquet snapshot from which the layer reads. Each point is an estimated annual plastic emission at a river mouth; higher values mark rivers that release more plastic to the sea. Because the data covers river mouths only, most inland or non-coastal areas return no features.
This layer displays mismanaged plastic waste (MPW) discharged by rivers into the ocean, in kilograms per year. It uses the WRI Resource Watch dataset wat.063 from Meijer et al. (2021), which models global riverine plastic emissions and finds that more than 1,000 rivers account for about 80% of the total. The dataset is a point layer of roughly 40,000 river mouths, each carrying an estimated annual MPW value.
| Code | Provider | Resolution | Year |
|---|---|---|---|
| WRD_AQDCT_99 | WRI Resource Watch | Point (river mouths) | 2021 |
For the area of interest a large 25 km buffer is applied to capture nearby river mouths. The point features are read from a pre-downloaded S3 GeoParquet snapshot (s3://3bee-maps-source-data/wat_063_plasticriverinputs/data.parquet), which is refreshed offline from the WRI Resource Watch CartoDB SQL API (table wat_063_plasticriverinputs at https://wri-rw.carto.com/api/v2/sql), then filtered by bounding box. Each retrieved point is buffered by about 500 m for visibility, then rasterized and classified into five discrete MPW classes (kg/year): Very Low (<100), Low (100-1K), Medium (1K-10K), High (10K-100K) and Very High (>100K). Areas with no river mouths return an empty layer.