Occurrence of microplastics in store-bought fresh and processed clams in Italy.
Mar Pollut Bull
; 206: 116739, 2024 Sep.
Article
em En
| MEDLINE
| ID: mdl-39029150
ABSTRACT
Compared to the large amount of data on wild samples, only a few studies reported microplastic occurrence in store-bought bivalves in which the production chain can be the main contamination route. Microplastic occurrence was herein investigated in 100 samples of store-bought clams sold as fresh or processed (vacuum-frozen or in brine) in Italy. A 10 % KOH was used for soft tissue digestion and FT-IR spectroscopy for polymer identification. A total of 135 potential microplastics ranging in size between 20 µm and 5000 µm were enumerated estimating an annual dietary intake via clam consumption of 59.472 microplastics/person. No significant difference in the average abundance between the two commercial conditions was observed, while a prevalence of smaller particles was detected in processed samples suggesting a detrimental effect of cooking during production. Polyethylene (PE), polyethylene terephthalate (PET), and polystyrene (PS) were identified posing an overall low risk (class II). Microplastic occurrence in store-bought seafood requires additional and specific attention and future studies should investigate microplastic contribution linked to the production chain.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
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Monitoramento Ambiental
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Bivalves
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Microplásticos
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article