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Assessing marine litter in a highly polluted area in the Mediterranean: A multi-perspective approach in the Saronikos Gulf, Greece
Summary
Researchers found that beaches and waters in Greece's Saronikos Gulf are heavily polluted with trash, with plastic, especially tiny foam fragments and cigarette butts, making up most of the litter. This matters because as plastic breaks down into smaller pieces in the ocean, it can enter the food chain (including seafood we eat) and contribute to the growing concern over microplastics in our diets and bodies. The study highlights how coastal pollution is worse close to shore and shifts with seasons, giving policymakers concrete data to target cleanup efforts where they'll have the most impact.
Marine litter poses a significant environmental challenge in the Saronikos Gulf, Greece. Employing an integrated approach, data from both beach and underwater sites were analyzed. The average litter density on beaches was 2.61 items m-2, with plastic being the most common material, notably small polystyrene fragments and cigarette butts. The western part of the Gulf exhibited higher litter density, mainly due to surface circulation patterns. Most beaches fell short of meeting Good Environmental Status criteria for marine litter. Higher litter densities were observed in autumn. Benthic litter density decreased with depth, being 23 times higher in shallower waters, with plastic being the predominant type. This extensive study offers crucial insights into the pollution status and litter distribution in the Saronikos Gulf, contributing significantly to the global understanding of marine litter distribution on coastal ecosystems. Such information is crucial for raising awareness, informing policy decisions, and driving environmental actions.