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Critical analysis, characterization, and treatment of microplastics in the peripheral rivers of Dhaka city: Buriganga and Turag
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Systematic analysis of microplastic contamination in the Buriganga and Turag rivers of Dhaka found that pollution characteristics varied by matrix (water vs. sediment) and season, and that electrocoagulation treatment effectively reduced microplastic concentrations, offering a practical water treatment solution for these heavily polluted urban waterways.
This research identifies matrix and season-influenced microplastic pollution in the rivers of Dhaka in a systematic way, and an effective electrocoagulation process delivers actionable solutions for cleaner urban waterways.
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Pervasiveness and characteristics of microplastics in surface water and sediment of the Buriganga River, Bangladesh
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Researchers investigated microplastic contamination in the Buriganga River in Bangladesh, finding concentrations of 4.33 to 43.67 items per liter in surface water, with fibers and fragments as dominant types linked to textile industries and urban waste discharge in the Dhaka megacity.
A Study of Microplastics in the Freshwater Systems around Dhaka
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Researchers quantified and characterised microplastic contamination in surface water and sediments of rivers around Dhaka, Bangladesh using NOAA-recommended methods, finding the highest pollution in the Buriganga River at 3.65 items per litre in surface water and 43.1 items per kilogram in sediment.
Microplastic Pollution in Two Urban Rivers and an Associated Water Treatment Plant in Bangladesh
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The first microplastic study in Bangladesh examined two urban rivers (Buriganga and Shitalakhya) and an associated drinking water treatment plant, finding an average of 11,639 microplastic particles per cubic meter in water samples. Over 90% of particles were under 0.5 mm, with microfilm the dominant form (71%), and PET, PP, PE, PVC, and polystyrene were the most common polymers identified by ATR-FTIR. Notably, microplastic concentrations in the treatment plant were not significantly different from source river concentrations, raising concerns about the efficacy of conventional water treatment in removing microplastics.
Abundance, distribution and composition of microplastics in sediment and fish species from an Urban River of Bangladesh
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Researchers examined microplastic contamination in both river sediment and fish from the Turag River in Bangladesh, which separates an industrial city from the capital Dhaka. They found microplastics in all sediment and fish gut samples, with fragment-type particles dominating in sediment and fibers most common in fish. The study highlights that urban rivers in densely populated areas can serve as significant conduits of microplastic exposure for both aquatic life and the people who consume river fish.
Microplastics in Sitalakhya River: Distribution and Properties Across Land Uses in Dhaka's Peripheral Waterway
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Researchers investigated microplastic pollution in the water and bed sediments of the Sitalakhya River on the periphery of Dhaka city, sampling four locations representing commercial, residential, industrial, and agricultural land uses and finding microplastic abundances ranging from 20 to 412 items/kg in sediment and 3 to 38 items/100L in water. The study found that land use type significantly influenced both the abundance and physical characteristics of microplastics, with industrial zones exhibiting the highest contamination levels.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.