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Seasonal and Spatial Distribution of Microplastics in Surface Water of the Southern Branch of the Mekong River in Vietnam
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Researchers measured seasonal and spatial patterns of microplastic pollution in the Hau River, a southern branch of the Mekong in Vietnam, finding microplastics distributed throughout the waterway. The results show that even rivers far from major industrial centers carry significant plastic contamination, threatening aquatic life and communities that depend on the river for food and water.
Microplastic pollution recently received a lot of concern from scientists and policy-makers due to its ubiquity in all worldwide aquatic environments. In Vietnam, microplastics were observed in the aquatic environments from the terrestrial area to the sea. The Hau...
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Abundance of microplastics in surface water of tropical reservoirs during contrasted season, the case of Dau Tieng and Tri An, Vietnam
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Researchers found microplastics in the surface waters of two major Vietnamese reservoirs used for drinking water and irrigation, with concentrations influenced by nearby human activity and seasonal rainfall patterns. The findings suggest microplastics should be routinely monitored as a water quality parameter in tropical freshwater systems.
Microplastic Pollution and Ecological Risk in a Vietnamese River: A Case Study from the Bach Hac Confluence, Phu Tho Province
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Surface water and sediment samples from the Bach Hac–Red River confluence in Vietnam contained microplastics at 43–103 items/m³ and 200–650 items/kg respectively, with PET, PTFE, and polyamide dominant and particles under 100 µm comprising nearly half of surface water samples. Risk assessments indicate low contamination levels currently, but the dominance of sub-100 µm particles heightens concern for biological uptake and human exposure through water and food chains.
Microplastic Removal Time in Saigon River
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Researchers investigated the time required for microplastics to be naturally removed from the Saigon River, examining how these toxic-additive-carrying particles move through aquatic food webs and what environmental conditions influence their residence time and eventual departure from freshwater systems.
Ten-year trends in microplastic deposition in sediments at the Lach Tray estuary, Hai Phong province, Vietnam
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Sediment core analysis using 210Pb dating revealed that microplastic concentrations in Vietnam's Lach Tray estuary increased more than fourfold between 2012 and 2023, with polyethylene and polypropylene fragments and fibers dominating, and carbon isotope signatures tracing shifting pollution sources over time. This decade-long record provides direct evidence of accelerating plastic pollution in Southeast Asian estuaries, which serve as critical pathways for microplastics entering coastal marine ecosystems.
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