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Microplastics in retail shellfish from a seafood market in eastern Thailand: Occurrence and risks to human food safety

Marine Pollution Bulletin 2024 36 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 65 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

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Summary

Researchers tested three popular types of shellfish sold at a Thai seafood market and found microplastics in all of them, with polystyrene and polyethylene being the most common plastic types. They estimated that Thai consumers could ingest up to about 1,178 microplastic particles per year just from shellfish. The health risk assessment rated the contamination at moderate to high concern levels.

Polymers

PE PS

This study aimed to investigate the presence of microplastics in three economically essential shellfish species: green mussels, cockles and spotted babylon. The average abundance of microplastics ranged from 2.41 to 2.84 particles/g wet weight. The predominant shape was fiber, with colors ranging from black-grey to transparent. The size of the microplastics discovered was <1.0 mm. Polystyrene and polyethylene were the most detected types in mussels and cockles, while linen was the predominant type in spotted babylon. The Thai population's estimated annual intake (EAI) of microplastics through shellfish consumption ranged from 20.23 to 1178.42 particles/person/year. The potential human health risks were evaluated using the polymer hazard index (PHI), which led to risk categories III-IV. These findings, along with others from the literature, indicate that shellfish consumption may pose risks to human health, depending on the species consumed and the origin of the specimens.

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