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Plastic accumulation in the Mediterranean Sea
Cózar, A.; Sanz-Martín, M.; Marti, E.; González-Gordillo, J.I.; Úbeda, B.; Gálvez, J.Á.; Irigoien, X.; Duarte, C.M. (2015). Plastic accumulation in the Mediterranean Sea. PLoS One 10(4): e0121762. https://dx.doi.org/10.1371/journal.pone.0121762
In: PLoS One. Public Library of Science: San Francisco. ISSN 1932-6203; e-ISSN 1932-6203, meer
Peer reviewed article  
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  • Cózar, A.
  • Sanz-Martín, M.
  • Marti, E.
  • González-Gordillo, J.I.
  • Úbeda, B.
  • Gálvez, J.Á.
  • Irigoien, X.
  • Duarte, C.M., meer
Abstract
    Concentrations of floating plastic were measured throughout the Mediterranean Sea to assess whether this basin can be regarded as a great accumulation region of plastic debris. We found that the average density of plastic (1 item per 4 m2), as well as its frequency of occurrence (100% of the sites sampled), are comparable to the accumulation zones described for the five subtropical ocean gyres. Plastic debris in the Mediterranean surface waters was dominated by millimeter-sized fragments, but showed a higher proportion of large plastic objects than that present in oceanic gyres, reflecting the closer connection with pollution sources. The accumulation of floating plastic in the Mediterranean Sea (between 1,000 and 3,000 tons) is likely related to the high human pressure together with the hydrodynamics of this semi-enclosed basin, with outflow mainly occurring through a deep water layer. Given the biological richness and concentration of economic activities in the Mediterranean Sea, the affects of plastic pollution on marine and human life are expected to be particularly frequent in this plastic accumulation region.
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