Density of plastic particles at the sea surface (0-15 cm), in mass. Are taken into account the micro- (0.33 to 5 mm and / or 1 to 5 mm depending on the samples) and mesoplastiques (5 to 500 mm).

To select the volunteer sailboats that took the samples, use the "Map and Tools" tab at the top right.
To zoom in and out, use the + and - symbols on the map rather than the trackpad.

Map in full screen : click here


Water samples are collected at the surface by using the Manta Trawl system (a net system for sampling the surface of the ocean attached to the side of the boat) which filters the first 15cm of the water surface. The ideal wind speed conditions don’t exceed the 20 kn.