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Microplastics in retail shellfish from a seafood market in eastern Thailand: Occurrence and risks to human food safety
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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.
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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Microplastics in commercial bivalves from coastal areas of Thailand and health risk associated with microplastics in ingested bivalves
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Researchers measured microplastic contamination in four species of commercial shellfish from Thailand's coastline and assessed the health risk to consumers. Microplastics were found in 69-93% of the shellfish sampled, with fibers being the most common type. Based on local consumption patterns, the study estimated that regular shellfish eaters in Thailand could be ingesting significant amounts of microplastics, though the health risk was deemed low to moderate at current levels.
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Researchers assessed microplastic contamination and heavy metal health risks in two shellfish species from Phuket, Thailand, finding microplastics in both species with polyethylene terephthalate being the most common polymer type.
Microplastic Abundance in Blood Cockles and Shrimps from Fishery Market, Songkhla Province, Southern Thailand
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Microplastics were detected in blood cockles and shrimps purchased from a fishery market in Songkhla Province, southern Thailand, with contamination levels and polymer types characterized in commercially important seafood that represents a route of microplastic ingestion for local consumers.
Occurrence, sources and potential human health risk of microplastics in seafood species
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Researchers measured microplastic occurrence in seafood products available in local markets, identifying plastics in multiple species including fish, shrimp, and bivalves, and estimated potential human dietary intake based on consumption data. The study found that seafood lovers could ingest thousands of microplastic particles per year through regular consumption, with shellfish representing the highest per-serving exposure.
Microplastics Contamination in Commercial Green Mussels from Selected Wet Markets in Thailand
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Researchers quantified microplastic contamination in commercially sold green mussels from Thai wet markets, providing the first assessment of MP levels in market-sold mussel species in Thailand and estimating potential human dietary exposure.
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