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Almeno 14 tonnellate di pezzi di plastica (con larghezza inferiore ai cinque millimetri) si trovano sul fondo degli oceani di tutto il mondo: questa è quanto scaturito da una ricerca pubblicata sul giornale Frontiers in Marine Science e riportata da numerosi media.
Lo studio australiano, condotto analizzando i sedimenti oceanici fino a tre chilometri di profondità, suggerisce che potrebbe esserci 30 volte più plastica sul fondo dell'oceano di quanta ne galleggi in superficie.
Le microplastiche hanno un diametro di cinque millimetri o meno e sono per lo più il risultato di oggetti in plastica più grandi che si rompono in pezzi sempre più piccoli.
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