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61,005 resultsShowing papers similar to Interventions of river network structures on urban aquatic microplastic footprint from a connectivity perspective
ClearInterventions of river network structures on urban aquatic microplastic footprint from a connectivity perspective
Researchers analyzed microplastic distribution across a Nanjing, China urban river network using multiple detection methods, finding ubiquitous and abundant microplastics with distinct hotspots and heterogeneous characteristics linked to how river infrastructure structures such as weirs and gates interrupt microplastic connectivity and flow.
Interventions of river network structures on urban aquatic microplastic footprint from a connectivity perspective
Researchers analyzed microplastic distribution in a typical urban river network in Nanjing, China, using multiple detection methods and the Renkonen similarity index to assess how river infrastructure structures such as dams and sluices influence microplastic spatial variability and footprint from a connectivity perspective.
Abundance, Distribution and Drivers of Microplastic Contaminant in Urban River Environments
Researchers surveyed microplastic distribution in urban river environments and identified key drivers of accumulation hotspots, finding that land use, hydrology, and infrastructure factors concentrated microplastics at predictable locations that could inform targeted management interventions.
Microplastic pollution in sophisticated urban river systems: Combined influence of land-use types and physicochemical characteristics
This study assessed microplastic pollution across an urban river network in China, finding that land-use type and water physicochemical properties jointly influence microplastic distribution, with industrial and residential areas contributing highest loads.
Spatial distribution and vertical characteristics of microplastics in the urban river: The case of Qinhuai River in Nanjing, China
Researchers investigated the spatial distribution and vertical characteristics of microplastics in the Qinhuai River in Nanjing, China. The study found an average concentration of about 668 microplastic items per liter, with abundance patterns varying between surface and deep water at different points along the river, and identified correlations between microplastic presence and shifts in microbial community structure.
The urban microplastic footprint: investigating the distribution and transport
Researchers investigated the distribution and transport of microplastics within an urban environment, mapping the 'urban microplastic footprint' to understand how city infrastructure and land use patterns drive the spatial distribution and downstream export of plastic particles to receiving water bodies.
Distribution and characteristics of microplastics in an urban river: The response to urban waste management
Microplastics were detected throughout surface water and sediments of an urban Chinese river (Nanming River) in both dry and wet seasons, with 25 different polymer types identified and the highest concentrations near sewage discharge points and plastic waste dump sites. The study shows that urban river management practices — particularly wastewater handling — are critical in controlling how much plastic reaches downstream ecosystems.
Distribution Patterns of Microplastics Pollution in Urban Fresh Waters: A Case Study of Rivers in Chengdu, China
Researchers surveyed microplastic pollution in urban rivers of Chengdu, China, finding concentrations of 5 to 10.5 items per liter, predominantly transparent fragments and fibers, with spatial distribution influenced by urbanization and wastewater discharge.
Spatiotemporal dynamics of microplastics in an urban river network area
Researchers investigated microplastic dynamics in an urban river network in eastern China, finding abundances of 2.3 to 104.6 particles per liter that were significantly higher during wet seasons and concentrated near commercial, industrial, and wastewater discharge areas.
The role of water management and its effect on microplastic transport and fate
Researchers examined how water management practices affect the transport and fate of microplastics in river networks, which serve as both conduits and sinks for plastic pollution. The study found that flow regulation and water management interventions significantly influence how far microplastics travel and where they accumulate.
The effects of riverside cities on microplastics in river water: A case study on the Southern Jiangsu Canal, China
Researchers studied microplastic contamination in the Southern Jiangsu Canal in China and found that riverside cities significantly increase microplastic levels in river water, with abundance rising by 26% to 211% after flowing through urban areas. The study found that microplastic concentrations correlated with regional GDP and population density, with PET, polycarbonate, and polyethylene being the most common polymer types detected.
Coupled effects of urbanization level and dam on microplastics in surface waters in a coastal watershed of Southeast China
Researchers analyzed the distribution of microplastics across 17 sampling sites in the Minjiang River Watershed in southeast China, finding that microplastic concentrations were positively correlated with urbanization indicators and that dams influenced spatial distribution patterns.
[Occurrence, Driving Factors, and Risk Assessment of Microplastics in Surface Water of Typical River Basins in the Yangtze River Delta, China].
Researchers investigated microplastic occurrence, spatial distribution drivers, and risk assessment in surface water of Taihu Lake, Taipu River, and Huangpu River in China's Yangtze River Delta using field sampling, stereomicroscopy, and Fourier transform infrared spectroscopy. Network analysis was applied to identify driving factors behind the spatial distribution patterns of microplastic pollution across these interconnected freshwater systems.
Variance and precision of microplastic sampling in urban rivers
Researchers assessed the variance and precision of microplastic sampling methods in urban rivers, finding that high spatial and temporal variability in microplastic concentrations requires carefully designed sampling strategies to obtain representative measurements and reliable data for river microplastic assessments.
Prevailing impacts of river management on microplastic transport in contrasting US streams: Rethinking global microplastic flux estimations
Researchers compared microplastic transport in managed versus unmanaged US streams, finding that river management practices like channelization and damming significantly alter MP distribution patterns, suggesting global microplastic budgets need to account for river infrastructure.
[Pollution Status and Pollution Behavior of Microplastic in Surface Water and Sediment of Urban Rivers].
Researchers surveyed microplastic pollution in surface water and sediments of eight rivers across urban and suburban areas of Shanghai, finding widespread contamination that varied by location and urbanization level. The study provides a detailed picture of how urban rivers act as pathways for microplastics moving from land to sea.
[Composition and Distribution of Microplastics in the Water and Sediments of Urban Rivers in Beijing].
Researchers measured microplastic concentrations in water and sediments from eight sampling points along urban rivers in Beijing. Microplastics were widespread, with fibers being the most common type, likely from laundry and textile sources. Urban rivers are important conduits that transport microplastics from cities into larger water bodies and ultimately the ocean.
Anthropogenic Litter in Urban Freshwater Ecosystems: Distribution and Microbial Interactions
Researchers quantified anthropogenic litter in urban rivers and streams and found that microplastics dominated by mass and particle count compared to macroplastic items. The study highlights urban freshwater systems as major conduits for plastic pollution moving toward marine environments and documents distinct microbial communities on plastic surfaces.
Modeling the transport of microplastics along river networks
Researchers built a mathematical model to predict how microplastics travel through river networks, combining water flow dynamics with estimates of human plastic inputs. They tested the model against real-world data from three river systems worldwide and found it reliably predicted microplastic concentrations. The tool could help identify pollution hotspots and guide cleanup priorities across entire river basins.
Microplastics profile in a typical urban river in Beijing
Researchers profiled microplastic pollution along the Qing River, a typical urban river in Beijing receiving effluent from four wastewater treatment plants, investigating how discharged microplastics distribute and transform as they move through an urban riverine system.
Distribution characteristics of microplastics in urban rivers in Chengdu city: The influence of land-use type and population and related suggestions
Researchers surveyed microplastic concentrations in urban rivers of Chengdu, China, finding MP abundances of 20-763 items per liter in water and linking higher concentrations to dense residential areas and industrial land use. Polyethylene and polypropylene fibers dominated the MP assemblage, consistent with textile laundering and household waste as primary sources.
Distribution characteristics of microplastics in urban rivers of Songjiang District, Shanghai
Microplastics were found throughout urban river sections in Shanghai, China, with concentrations reflecting local population density and land use patterns. Urban rivers are a significant pathway for microplastic contamination flowing into coastal and marine environments.
Temporal and Spatial Distribution Characteristics of Microplastics and Their Influencing Factors in the Lincheng River, Zhoushan City, China
Researchers analyzed temporal and spatial distribution patterns of microplastics in the Lincheng River in Zhoushan, China, finding that microplastic abundance is influenced by seasonal runoff, land use, and proximity to urban and industrial sources before entering the ocean.
Spatio-temporal distribution of microplastics in surface water of typical urban rivers in North China, risk assessment and influencing factors
Researchers measured microplastic levels in two urban rivers in North China across wet and dry seasons and found that concentrations generally increased from upstream to downstream. The most common plastics were polyethylene and polypropylene fibers, with natural factors dominating upstream and human activities driving pollution downstream. The study provides a reference for understanding how urbanization contributes to microplastic contamination in river systems.