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Tissue-Specific Microplastic Burden, Concentration and Size Distribution in Labeo rohita from Taunsa Barrage, a Ramsar Wetland in Pakistan
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Scientists checked a common food fish (rohu, widely eaten in South Asia) for tiny plastic particles and found that microplastics build up differently depending on which body part you look at, the gills, gut, and muscle (the part we actually eat) all showed different levels and sizes of contamination. This matters because it means simple counts of plastic particles can be misleading, how you measure microplastic pollution changes the picture of how much risk ends up on your dinner plate.
Microplastic burden, mass-normalised concentration and particle size can rank the tissues of a fish in different orders, so reporting only the first of the three gives a partial account of where contamination sits. We examined all three in Labeo rohita, a cyprinid of major dietary and...
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Microplastic Contamination in Edible and Inedible Tissues of Labeo rohita Across Rajasthan and Haryana: A Comparative Assessment
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Researchers analyzed microplastic contamination in edible (muscle and skin) and inedible (gut and gills) tissues of freshwater rohu fish (Labeo rohita) from 10 locations in Rajasthan and Haryana, India. MPs were found in all tissue types, including muscle and skin consumed by humans, indicating a food safety concern in these regions.
Toxicological Effects of Polystyrene Microplastics on Growth, Enzymatic Activity, Hematology, and Tissue Integrity in Labeo rohita
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Scientists exposed farmed fish (Rohu, a popular food fish) to microplastic pollution levels found in some contaminated waters and found it damaged their gills and intestines, slowed their growth, caused anemia-like symptoms, and made it harder for them to absorb nutrients from food. While this study was done in fish rather than humans, it matters because it shows microplastics can cause real physical harm to the animals we eat and to aquatic ecosystems overall—raising concerns about both food supply sustainability and the broader impact of plastic pollution making its way up the food chain.
Microplastics in tropical freshwater carnivorous fish: edible tissue contamination and an exploratory Fillet Risk Score (FRS) framework
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Scientists found tiny plastic particles not just in the guts, but also in the actual fillets (the part we eat) of freshwater fish from a river in Malaysia — meaning cleaning out the stomach and intestines before cooking doesn't fully remove plastic contamination. Many of these particles were extremely small (under 0.1 mm), a size that's often missed by standard testing methods, suggesting that real-world plastic exposure from eating fish may be higher than previously estimated. While this study doesn't yet tell us exactly how risky this is for human health, it highlights the need for better testing methods to understand what we're actually consu
Tissue-specific accumulation and species-level variability of microplastics in four freshwater fish from the Dez River, Iran
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Researchers measured microplastic contamination in four commercially important fish species from the Dez River, Iran, finding tissue-specific accumulation patterns that varied by species, with gills accumulating more particles than intestines or muscle across all four species.
Assessment of Microplastic Ingestion in Freshwater Fish Labeo Rohita From the Indus River Crossing Dera Ismail Khan
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Scientists found microplastics, tiny plastic bits, in 78% of Labeo rohita fish from Pakistan's Indus River, a popular food fish. Most were plastic fibers, and contamination was worse downstream, likely from pollution buildup. Since this fish is widely eaten, these findings raise concerns about how much plastic ends up on our plates.
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