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Presence of microplastics in two common dried marine fish species from Bangladesh
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Researchers examined two popular dried fish species from Bangladesh and found microplastics present in all samples, with fibers being the most common type. Fish from one collection site had significantly higher microplastic contamination than the other, suggesting location-specific pollution levels. The findings raise concerns about human dietary exposure to microplastics through commonly consumed seafood products in the region.
We examined microplastics (MP) in two commercially important dried fish, Bombay duck (Harpadon nehereus) and ribbon fish (Trichiurus lepturus), collected from two sites on the Bay of Bengal (Cox's Bazar and Kuakata). The number of MP found in dried Bombay duck and ribbon fish from Kuakata was significantly higher (41.33 g and 46.00 g, respectively) than the MP present in samples collected from Cox's Bazar (28.54 g and 34.17 g, respectively). Fibers were the most common type of MP identified in all samples (41-64%), followed by fragments (22-34%), microbeads (9-16%), films (3-4%), foams (1-4%), and pellets (0-2%). ATR-FTIR analysis revealed three different types of MP polymer - polyethylene (35-45%), polystyrene (20-30%) and polyamide (30-45%) in the dried fish samples. The study confirms the presence of high MP loads in dried fish from the Bay of Bengal, with high potential of trophic transfer of MP to the human body.
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Researchers analyzed fish from urban lakes in Bangladesh and found microplastics present in the edible tissues of all species examined, with fibers being the most common type. The level of contamination varied by fish species and lake location, reflecting differences in local pollution levels. The findings raise public health concerns about microplastic exposure through freshwater fish consumption in densely populated urban areas.
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Researchers examined 14 types of commercially available dried fish products from seven Asian countries and found microplastics present in all samples tested. The most common types were fibers and fragments, with polymers like polyethylene and polypropylene being frequently identified. The findings raise concerns about widespread human dietary exposure to microplastics through popular dried seafood products consumed across Asia.
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