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Spatiotemporal assessment of microplastics in the Yamuna River: From glacier to lower Himalayan foothills
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Microplastic Detection and Analysis in River Yamuna, Delhi
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Microplastic contamination was detected at high densities in the Yamuna River in Delhi, with these sub-0.5mm particles found to carry carcinogenic compounds into freshwater systems used by millions of people. The findings highlight the urgent need for pollution controls in South Asian urban waterways, where microplastics pose compounding risks to both aquatic life and human drinking water sources.
Chemical Characterization and Spatial Distribution of Microplastics in the Surface Water of the Arun River Basin, Central Himalaya, Nepal
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Researchers detected microplastics at all 14 sampling sites across the Arun River in Nepal's central Himalayas, finding average concentrations of 30 particles per liter with elevated levels near cropland and construction zones, and identifying polyethylene and PET as the dominant polymer types.
Assessment of Microplastic Contamination in the Surface water of the Bagmati River, Kathmandu Valley
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Researchers assessed microplastic contamination across 15 sites along the Bagmati River in Nepal's Kathmandu Valley, finding concentrations up to 129 MP per liter with fibers (94%) and polyethylene dominating, and significantly higher concentrations in midstream and downstream zones influenced by urban wastewater and solid waste.
Distribution and characterization of microplastics present in the water and sediments of River Gomti, India
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The first microplastic distribution study of the Gomti River in Lucknow, India found concentrations up to 82 particles/100 L in water and 116 particles/100 g in sediment, with fragments, fibers, films, and granules confirmed by FTIR, SEM, and EDS analysis. The findings establish baseline contamination data for an understudied South Asian river system, highlighting freshwater microplastic pollution as a growing public health concern in rapidly urbanizing regions.
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Researchers reviewed global evidence of microplastic contamination in rivers and lakes, finding that plastic particles serve as carriers for toxic chemicals, harm aquatic life through ingestion and entanglement, and enter human food and water supplies, while also exploring plant-based plastic alternatives that could reduce future pollution.
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