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Uno studio del Laboratorio federale di prova dei materiali EMPA evidenzia come ogni anno in Svizzera oltre 5'000 tonnellate di plastica finiscono nell’ambiente, ovvero 600 grammi per abitante, neonati compresi.
Stando ai dati raccolti, e pubblicati venerdì, annualmente si depositano sul terreno circa 4’400 tonnellate di macroplastiche (superiori a 5 mm), e 600 di microplastiche (inferiori a 5 mm), una parte delle quali si disperdono anche nelle acque.
La quantità di microplastiche è più ridotta di quella delle macroplastiche, tuttavia il numero di particelle che potrebbero avere ripercussioni sugli organismi è molto più elevato, ricordano gli esperti. La ricerca è stata concentrata sulle sette materie più utilizzate tra cui il polietilene, il polipropilene, il polistirolo e il polistirolo espanso, il PVC e il PET.
Primo studio sulle plastiche
Telegiornale 12.07.2019, 14:30
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