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The abundance and characteristics of microplastics in commonly consumed shellfish in the Jiangsu coastal region of China
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Researchers measured microplastic abundance and characteristics in three commercially consumed shellfish species from Jiangsu, China, finding MPs in all species with clams containing the highest concentrations and fibers from fishing gear and textiles as the dominant type, estimating annual human intake from shellfish consumption.
Microplastic pollution is ubiquitous in the marine environment and the consumption of shellfish containing microplastics may pose a risk to human health. This study investigated the occurrence and characteristics of microplastics in three commonly consumed shellfish in the coastal region of Jiangsu Province, China. The average abundance of microplastics in shellfish varied from 0.33 to 9.33 items/individual (0.06-0.92 items/g, wet weight of soft tissue). Microplastic abundance in Jiangsu was relatively low compared to studies from other regions of China and worldwide. Synthetic fibers (66.20%) were predominant and included rayon (34.84%) and polyester (23.23%), indicating that the majority of particles originated from the discharge of clothing fibers in domestic sewage. Transparent (66.20 %) particles were the most common, particle size was generally less than 500 μm (62.30%), and abundance decreased as the particle size increased. The average annual intake of microplastics by Jiangsu coastal residents via the consumption of common bivalves was estimated to be 1088.64 items/person/year. This study provides data to support ecological and health risk assessments for microplastics in the Jiangsu coastal region.
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Researchers measured microplastic contamination in ten mollusk species collected from the Yantai coastal area of China, finding MPs in all species with bivalves containing more than gastropods and fibers as the dominant type, and estimating human dietary exposure through shellfish consumption.
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Researchers compared microplastic contamination levels in commercial shellfish from northern (Qingdao) and southern (Xiamen) China, finding microplastics in 70-100% of samples. The study assessed potential human health risks from consuming contaminated shellfish, with microplastic abundances varying across species and geographic locations.
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Researchers surveyed microplastic contamination in bivalves such as clams and mussels from the coast of Qingdao, China, and assessed human dietary exposure from eating them. They found an average of about one microplastic particle per individual shellfish, with fibers and rayon being the most common types. The study suggests that regular bivalve consumption in the region contributes to ongoing human microplastic exposure.
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