RT Journal Article T1 Quantifying sources of floating marine debris on the coasts of the Balearic islands A1 Ramos-Alcántara, Jorge A1 Soto-Navarro, Francisco Javier A1 Verger-Miralles, Elisabet A1 Jordà, Gabriel K1 Oceanografía K1 Contaminación marina K1 Corrientes marinas K1 Ecología de costas K1 Costas - España K1 Baleares (Comunidad Autónoma) AB Identifying the sources of pollutants remains as one of the main challenges in research on marine debris pollution, which mainly consists of what is known as marine litter. In this work, we develop a method to estimate the origin of marine debris found along the coasts of the Balearic Islands during the summers of 2014–2021. We combine detailed records from coastal clean-up campaigns with ocean currents simulations from a high-resolution model to perform a probabilistic tracking of debris motion. We use an inverse modelling approach whereby, starting from where the debris was collected and working backwards, allows us to estimate its origin. In this way, the temporal evolution of marine debris emission from different coastal sections of the archipelago was quantified.Results reveal a predominant transport pattern towards the E-NE-N, in accordance with the dominant circulation in the region. On average, 42.4 % of coastal debris emissions are exported outside the archipelago, 35.9 % remain in the same source zone, and 21.7 % are redistributed to other coastal areas of the islands. Within the inter-coastal transport of debris in the Balearic Islands, high-emission areas include Porto Cristo, Sóller, Alcudia, Ibiza, and Mahón. Northern zones of each island primarily act as receptors, while transport debris out of the archipelago. The results also suggest that the interannual variability in debris transport patterns is low.The methodology proposed here could be applied in other coastal regions where systematic observational records exist and be used to optimize the organization of the cleaning campaigns and improve the management and mitigation of this type of pollution. PB ELSEVIER YR 2025 FD 2025-11 LK https://hdl.handle.net/10630/39862 UL https://hdl.handle.net/10630/39862 LA eng NO Ramos-Alcántara, J., Soto-Navarro, J., Verger-Miralles, E., & Jordà, G. (2025). Quantifying sources of floating marine debris on the coasts of the Balearic Islands. Marine Environmental Research, 107480. NO Funding for open access charge: Universidad de Málaga / CBUA DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026