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Résultats pour:
Laurent C. M. Lebreton, The Ocean Cleanup Foundation, The Ocean Cleanup Foundation, Delft, The Netherlands, The Modelling House, The Modelling House, Raglan, New Zealand, Joost van der Zwet, HKV Consultants, HKV Consultants, Lelystad, The Netherlands, Jan-Willem Damsteeg, The Ocean Cleanup Foundation, The Ocean Cleanup Foundation, Delft, The Netherlands, Boyan Slat, The Ocean Cleanup Foundation, The Ocean Cleanup Foundation, Delft, The Netherlands, Anthony Andrady, North Carolina State University, Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, USA, Julia Reisser, The Ocean Cleanup Foundation, The Ocean Cleanup Foundation, Delft, The Netherlands
Plastics in the marine environment have become a major concern because of their persistence at sea, and adverse consequences to marine life and potentially human health. Implementing mitigation strategies requires an understanding and quantification of marine plastic sources, taking spatial and temporal variability into account. Here we present a global model of plastic inputs from rivers into oceans based on waste management, population density and hydrological information. Our model is calibrated against measurements available in the literature. We estimate that between 1.15 and 2.41 million tonnes of plastic waste currently enters the ocean every year from rivers, with over 74% of emissions occurring between May and October. The top 20 polluting rivers, mostly located in Asia, account for 67% of the global total. The findings of this study provide baseline data for ocean plastic mass balance exercises, and assist in prioritizing future plastic debris monitoring and mitigation strategies. Rivers provide a m