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61,005 resultsShowing papers similar to Microplastic pollution in the Yangtze River: Characterization, influencing factors, and scenario-based predictions using machine learning method
ClearMicroplastic pollution in the Yangtze River Basin: Heterogeneity of abundances and characteristics in different environments
Researchers compiled microplastic data from 624 sampling sites across the Yangtze River Basin covering water, sediment, soil, and biota, revealing heterogeneous contamination patterns driven by local land use, population density, and wastewater infrastructure.
Environmental fate of microplastics in the world's third-largest river: Basin-wide investigation and microplastic community analysis
Researchers conducted a basin-wide investigation of microplastics throughout the entire Yangtze River system, sampling water, sediment, and soil. The study found microplastics in all samples with abundance increasing from upstream to downstream, driven by both geographical and human factors, with major cities at the middle and lower reaches identified as key pollution nodes.
Are we underestimating the driving factors and potential risks of freshwater microplastics from in situ and in silico perspective?
Researchers combined field sampling with machine learning predictions to assess microplastic contamination in rivers of China's Yangtze River Delta, incorporating land use, hydrology, and particle properties. The study found that conventional assessments may underestimate risk by overlooking smaller particle sizes and high-density polymers, and that textile manufacturing effluents are a major underrecognized source.
Small microplastic particles dominate Yangtze River particulate pollution
Annual field monitoring of microplastic fluxes in the Yangtze River estuary found that small particles dominated the plastic load and that abundance was spatially and temporally heterogeneous, providing the first systematic estimate of the river's annual plastic contribution to the ocean.
Distribution, characteristics, and research status of microplastics in the trunk stream and main lakes of the Yangtze River: A review
This review synthesizes research on microplastic distribution, characteristics, and sources in the Yangtze River trunk stream and its major lakes, identifying industrial discharges, urban runoff, and agricultural films as dominant pollution sources affecting one of the world's most populated river basins.
Small microplastic particles dominate Yangtze River particulate pollution
Researchers conducted annual monitoring of plastic particle fluxes in the Yangtze River estuary, finding that small microplastic particles dominate particulate pollution and that their distribution varies significantly by location and season, with important implications for estimating riverine plastic inputs to the sea.
Characteristics and Distribution of Microplastics in Shoreline Sediments of the Yangtze River, Main Tributaries and Lakes in China—From Upper Reaches to the Estuary
Scientists measured microplastic concentrations in sediments along 54 sites spanning the Yangtze River system in China, from the upper reaches to the estuary. Microplastics were found throughout, with higher concentrations near urban and industrial areas, showing how large rivers distribute plastic pollution across vast distances.
Occurrence and fate of microplastic debris in middle and lower reaches of the Yangtze River – From inland to the sea
A large-scale survey along the middle and lower Yangtze River found microplastics throughout the water column and sediments, with concentrations increasing toward the river mouth and a clear trend of microplastics moving from inland sources toward the sea. The study provides field evidence for rivers as major pathways for microplastic transport from land to ocean.
Microplastic contamination in the yangtze river: Evaluating pollution levels and the need for standardized research methods
This review synthesizes data from 21 studies to assess microplastic pollution levels across the Yangtze River Basin, characterizing particles by abundance, size, shape, and polymer type while applying strict QA/QC protocols and highlighting the critical need for standardized research methods.
Characteristics and distribution of microplastics in shoreline sediments of the Yangtze River, main tributaries and lakes in China—From upper reaches to the estuary
Microplastic concentrations were measured in shoreline sediments from 54 sites along the Yangtze River, its tributaries, and adjoining lakes from the upper reaches to the estuary, revealing widespread contamination that generally increased toward the more urbanized lower river. The study provides one of the most spatially comprehensive surveys of Yangtze River microplastic pollution to date.
Seasonal dynamics, tidal influences, and anthropogenic impacts on microplastic distribution in the Yangtze River estuary: A comprehensive characterization and comparative analysis
Researchers studied microplastic pollution in the Yangtze River estuary and found average concentrations of about 1 particle per cubic meter of surface water, mostly polystyrene, polypropylene, and polyethylene. Microplastic levels were nearly twice as high during flood season compared to dry season and decreased with distance from urban centers. These findings highlight how population density and seasonal water flow influence microplastic distribution in major waterways.
Occurrence of microplastics pollution in the Yangtze River: Distinct characteristics of spatial distribution and basin-wide ecological risk assessment
Researchers analyzed microplastic pollution across the entire Yangtze River basin, compiling data from the headwaters to the estuary to create a comprehensive picture of contamination. They found distinct spatial distribution patterns, with higher concentrations in urban and industrialized stretches of the river. The study also conducted a basin-wide ecological risk assessment, finding moderate to high risk levels in several sections.
Occurrence and characteristics of microplastics across the watershed of the world’s third-largest river
Researchers conducted a large-scale survey of microplastic pollution across the entire Yangtze River watershed, the world's third-largest river. They found microplastics throughout the river system, with concentrations decreasing from upstream to downstream, and fiber-shaped particles smaller than 1 mm being most common. The study provides important baseline data showing that even remote upstream areas of major river systems carry significant microplastic contamination.
Microplastics in Surface Water in the Yangtze River, China: Basin-Wide Observation, Multiple Ecological Risk Assessment and Sustainability
Researchers conducted a three-year survey of microplastic pollution across the entire Yangtze River Basin in China and found an average of nearly 8,800 microplastic particles per cubic meter of surface water. Tiny particles smaller than 0.3 millimeters made up over 92% of what was found and drove the variation in pollution levels between locations. The study highlights that previous research may have significantly underestimated microplastic contamination by not capturing these smallest particles.
Analysis of suspended microplastics in the Changjiang Estuary: Implications for riverine plastic load to the ocean
Suspended microplastics were measured in the Changjiang (Yangtze) River Estuary, one of the world's largest rivers, to estimate its total plastic load delivered to the East China Sea. The study found substantial and highly variable microplastic concentrations that, when scaled to river discharge, suggest the Yangtze contributes a significant fraction of total global riverine plastic input to the ocean.
The pollution of microplastics in sediments of the Yangtze River Basin: Occurrence, distribution characteristics, and basin-scale multilevel ecological risk assessment
This study mapped microplastic pollution throughout the Yangtze River Basin in China and found an average of 611 particles per kilogram of sediment, with wide variation across locations. Smaller microplastics under 1 millimeter and fibrous shapes were most common, and contamination was closely linked to population density and human activities. The findings are concerning because the Yangtze River system provides drinking water and food resources to hundreds of millions of people.
Microplastic contamination in the yangtze river: Evaluating pollution levels and the need for standardized research methods
This review synthesizes data from 21 studies to conduct a comprehensive risk assessment of microplastic pollution throughout the Yangtze River Basin, applying QA/QC protocols to characterize particle abundance, size, shape, and polymer type while calling for standardized research methods to improve comparability.
A catchment-wide microplastic pollution investigation of the Yangtze River: The pollution and ecological risk of tributaries are non-negligible
Researchers conducted a large-scale survey of microplastic pollution across the entire Yangtze River catchment, including both the main river and its tributaries. They found that tributaries contributed significantly to the overall microplastic load and posed ecological risks that had been previously overlooked. The study emphasizes that effective pollution management for major river systems must account for contamination flowing in from smaller waterways.
How microplastic loads relate to natural conditions and anthropogenic activities in the Yangtze river basin
Microplastic abundance across 366 sampling sites in the Yangtze River basin varied by up to five orders of magnitude, with Chengdu showing the highest levels. In the upstream, GDP-driven anthropogenic activity was the dominant pollution driver (r = 0.85), while in the middle and downstream, natural conditions and human activities contributed roughly equally.
[Occurrence Characteristics and Ecological Risk Assessment of Microplastic Pollution in the Yellow River Basin].
Researchers examined the spatial distribution, composition characteristics, and ecological risks of microplastic pollution across the Yellow River Basin in China, assessing contamination levels in the nation's historically significant waterway system.
Suspended microplastics in the surface water of the Yangtze Estuary System, China: First observations on occurrence, distribution
Researchers measured suspended microplastic concentrations in surface water across the Yangtze Estuary system in China, finding spatial gradients that reflected inputs from the Yangtze River and local coastal sources.
Microplastics contamination in the surface water of the Yangtze River from upstream to estuary based on different sampling methods
A survey of microplastic contamination along the Yangtze River from source to estuary found average abundances of up to 4.25 × 10^5 items/km by trawling and up to 3,089 items/m³ by filtration, with the Three Gorges Reservoir showing the highest concentrations due to a dam barrier effect.
Microplastics in China’s surface water systems: Distribution, driving forces and ecological risk
Researchers compiled over 14,000 samples from across China to map microplastic pollution in surface water systems using machine learning models. They found that microplastic abundance varied enormously across regions, driven by a complex mix of human activities and natural conditions. The ecological risk assessment revealed that watersheds in nearly all Chinese provinces face high to extremely high contamination levels, underscoring the urgency of nationwide management efforts.
Extent and risks of microplastic pollution in the Yangtze River. State of the science
This review analyzed data from 21 studies on microplastic pollution in the Yangtze River, one of the most polluted rivers in the world. Researchers found that many existing studies had quality issues that make it difficult to accurately assess the true risks. The study calls for higher-quality, standardized research methods to properly evaluate how microplastics are affecting one of Asia's most important waterways.