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Microplastics in the Sediments: From Rivers to Lakes Investigated in the Biggest Freshwater Lake (Poyang Lake) Basin and Yangtze River in China
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Microplastic pollution is widespread in the Yangtze River basin and Poyang Lake, China's largest freshwater lake, with sediment concentrations reflecting upstream urban and industrial inputs. Rivers and lakes serve as critical transport corridors for microplastics moving from land to ocean, making freshwater monitoring essential for understanding total plastic flux.
In recent years, microplastic (MP) pollution is increasingly becoming a new environmental problem of global concern. Rivers and lakes are important transport channels for MPs entering the ocean, and their contribution to MP pollution can’t be ignored. In this...
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Occurrence and Driving Mechanism of Microplastics in River-connected Lake of the Mid-lower Yangtze River Basin
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Researchers analyzed 19 studies on microplastic pollution in river-connected lakes of China's Yangtze River Basin and found average concentrations of 11,854 items/m³ in water and 649 items/kg in sediment, with human activities such as wastewater discharge and economic development identified as primary drivers through GeoDetector modeling.
Microplastic contamination in freshwater: first observation in Lake Ulansuhai, Yellow River Basin, China
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Researchers detected microplastics in Lake Ulansuhai in northern China at concentrations up to 10,120 particles per cubic meter, with higher levels near drainage canals and metallic elements like iron, calcium, and zinc adsorbed onto particle surfaces. The presence of metal-laden microplastics in this freshwater lake raises compound pollution concerns for downstream ecosystems and communities relying on the Yellow River basin.
Microplastic abundance, distribution, and composition in the surface water and sediments of the Yangtze River along Chongqing City, China
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Microplastics were found throughout surface water and sediments of the Yangtze River in Chongqing, with abundances up to 204 particles per liter in water and 583 per kilogram in sediment, dominated by small fibers under 0.7 mm. The prevalence of fine fiber microplastics in one of China's most important waterways signals widespread contamination with implications for drinking water quality and aquatic ecosystem health.
Microplastics in Sediments of the Urban River Jinjiang: Sources, Distribution, and Risk Assessment
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Researchers mapped microplastic contamination in sediments of the Jinjiang River in China, finding concentrations ranging from 21 to 924 particles per kilogram of dry sediment, with domestic waste and laundry effluents as the dominant sources and moderate ecological risk levels across most of the river stretch.
Microplastics in sediment of the Three Gorges Reservoir: abundance and characteristics under different environmental conditions
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Microplastics were found throughout sediments of China's Three Gorges Reservoir at 59–276 particles/kg, with urban population density driving spatial distribution, and particle surfaces carrying multiple bisphenols and heavy metals. The reservoir's role as a microplastic sink — concentrating plastics that act as carriers for toxic co-pollutants — amplifies ecological and human health risks for downstream communities that depend on this water system.
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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.