The beaches of France have been systematically scoured for pellets by a network of dedicated volunteers.
The organisation SOS Mal de Seine has produced one of the most comprehensive datasets of pellet pollution. Beaches are categorised according to the intensity of pollution observed. Some of the worst hot-spots are highlighted on our nurdle map. These include the coastline along the English Channel, surroundings of Le Havre on the Seine Estuary, and near Fos-sur-mer and Marseille on the south coast.
The organisation Surfrider Foundation Europe is also involved in the coalition. They have been monitoring litter on beaches, but also in rivers, to find out more about the sources of plastic debris to our seas.
A map of pellet finds around France, as collated by SOS mal de Seine. Click on the map to view the full interactive dataset.