Unveiling Microplastics in Commercial Brackish Water Fishes from the Lower Meghna River Estuary of Bangladesh
Bulletin of Environmental Contamination and Toxicology2025
6 citations
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Score: 63
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Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Sultan Al Nahian,
Sultan Al Nahian,
Razat Suvra Das,
Sultan Al Nahian,
Sultan Al Nahian,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
S. M. Mahatab Uddin,
Sultan Al Nahian,
Sultan Al Nahian,
Sultan Al Nahian,
Sultan Al Nahian,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Sedat Gündoğdu,
Showmitra Chowdhury,
S. M. Mahatab Uddin,
Sedat Gündoğdu,
Jannatul Kubra Afrin,
Jannatul Kubra Afrin,
Sedat Gündoğdu,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Sultan Al Nahian,
Sultan Al Nahian,
Sedat Gündoğdu,
Sultan Al Nahian,
Sultan Al Nahian,
Showmitra Chowdhury,
Sedat Gündoğdu,
Sedat Gündoğdu,
Nusrat Jahan,
Mohammad Abdul Momin Siddique
Md Rubaet Bin Abedin,
Md Rubaet Bin Abedin,
Sultan Al Nahian,
Sultan Al Nahian,
Sedat Gündoğdu,
Sultan Al Nahian,
Sultan Al Nahian,
Showmitra Chowdhury,
Sedat Gündoğdu,
Sultan Al Nahian,
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Sultan Al Nahian,
Sedat Gündoğdu,
Md. Golam Mustafa,
Md. Golam Mustafa,
Mohammad Abdul Momin Siddique
Sedat Gündoğdu,
Mohammad Abdul Momin Siddique
Summary
Researchers found microplastics in the digestive tracts of three commonly eaten fish species from the Meghna River estuary in Bangladesh, with one species averaging nearly 23 particles per fish. Fibers were the dominant shape, and several of the plastic types identified scored high on a polymer hazard index. Since these fish are a dietary staple for local populations, the study highlights a direct route of microplastic exposure for millions of people in Bangladesh.
Microplastics (MPs) pose a persistent global threat and have entered almost every component of the ecosystem and seafood items. This study aimed to identify and characterize MPs in three widely edible fishes in the lower Meghna River estuary of Bangladesh and assess the polymer hazard index. Gastrointestinal tracts (GIT) of fish were collected and digested with KOH to extract MPs, and the polymer was confirmed by FTIR analysis. The species with the highest mean MP abundance was M. gulio (22.89 ± 8.91 MPs/GIT), followed by P. paradiseus (10.78 ± 4.29) and O. pama (15.11 ± 3.55). Fibers were predominant MPs, comprising 73.20-91.75% of the total particles. Blue, red, and black were the dominant colors of MPs, while 81.07-93.81% particles were between 500 and 1000 μm. Five distinct polymers, polypropylene, polyethylene, polyethylene terephthalate, Polystyrene, and Nylon 6, were detected in the GIT of these fishes. The study unveiled a significant correlation (r<sup>2</sup> = 0.223, p = 0.013) between MP incidence and the total length of fish. The polymer hazard index of the selected fishes showed the risk category IV (Danger), which is alarming. A risk category IV indicates that exposure to polymer, directly or indirectly through the food chain, may result in severe health consequences for humans as well as wildlife. With these detailed insights into MPs in most consumable fishes, the study highlights the comprehensive risks posed by MPs that could be useful for strategies to mitigate this environmental challenge.