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61,005 resultsShowing papers similar to Dynamics of microplastic abundance under tidal fluctuation in Musi estuary, Indonesia
ClearDynamic characteristics of microplastics under tidal influence and potential indirect monitoring methods
Researchers investigated microplastic dynamics in tidal river channels and found that abundance fluctuated significantly with tidal cycles, increasing during flood tides and decreasing during ebb tides, with a strong linear relationship between microplastic levels and water flow rates.
Horizontal variation of microplastics with tidal fluctuation in the Chao Phraya River Estuary, Thailand
Microplastic concentrations and composition in the Chao Phraya River Estuary in Thailand varied with tidal cycle, with flood tides increasing marine-sourced particles and ebb tides flushing river-derived fragments, showing that tidal dynamics must be accounted for in estuarine microplastic sampling designs.
Vertical distribution and river-sea transport of microplastics with tidal fluctuation in a subtropical estuary, China
Researchers investigated how tidal fluctuation affects the vertical distribution and river-sea transport of microplastics in a subtropical estuary in China, finding that tidal dynamics significantly influence microplastic size, concentration, and movement between river and marine environments.
Spatial and temporal distribution of microplastics in the Belawan Estuary, Indonesia
Researchers tracked microplastic levels across different tidal cycles and lunar phases in an Indonesian estuary, finding that concentrations peaked near the coastline during high tide and full moon periods. The study shows that tidal currents and seasonal water flow patterns strongly control where microplastics accumulate, which is important for designing cleanup strategies.
Seasonal variability of microplastic transport modulated by tides: A mass-based assessment in a turbidity maximum zone
Researchers found that tidal dynamics seasonally modulate microplastic transport in an estuary's turbidity maximum zone, with summer conditions promoting bottom enrichment and seaward decreases in particle size and abundance consistent with fragmentation and differential settling processes.
How does the tidal cycle influence the estuarine dynamics of microplastics?
Researchers investigated how tidal cycles influence the abundance and characteristics of microplastics in an urban estuary, finding that tidal dynamics significantly affect MP transport dynamics and that estuaries serve as a major conduit for MP transfer from rivers to the ocean.
How does the tidal cycle influence the estuarine dynamics of microplastics?
Researchers tracked how tidal cycles influence the movement and distribution of microplastics within estuaries, finding that tidal dynamics play a major role in concentrating or dispersing particles across intertidal zones. The study provides a framework for understanding microplastic transport in tidal environments.
Tidal intensity and suspended sediment concentration drive microplastic distribution in the Pearl River Estuary: Insights from remote sensing retrieval
Field measurements showed that tidal intensity and suspended sediment concentrations are key drivers of microplastic transport in coastal and estuarine waters. The results help explain why microplastic concentrations fluctuate with tidal cycles and inform models predicting where plastics accumulate in dynamic coastal zones.
Effect of tidal current on the settling and accumulation of microplastics in the Chao Phraya River estuary, Thailand
Researchers investigated the effect of tidal currents on the settling and accumulation of microplastics in the Chao Phraya River estuary during a mixed spring tidal cycle, deploying sediment traps at 3 meters depth during flood and ebb tides. The study found that tidal dynamics significantly influence where and how microplastics are deposited in estuarine sediments.
Dynamic signatures of microplastic distribution across the water column of Yangtze River Estuary: Complicated implication of tidal effects
Seasonal sampling of microplastic concentrations throughout the Yangtze River Estuary water column found tidal dynamics strongly influenced distribution, with researchers developing a model estimating 2154 tons per year of microplastic flux into the East China Sea and a tide impact factor index of 38-58%.
Mobilization and deposition of plastic along an estuarine bank during tidal cycles
An experimental study in a French macrotidal estuary tracked plastic debris (macro, meso, and microplastics ≥3 mm) across six tidal cycles, finding that tidal mobilization and deposition patterns on estuarine banks are highly dynamic and dependent on plastic composition, shape, and tidal stage.
Transport mechanisms and fate of microplastics in estuarine compartments: A review
This review analyzes how tides, river flow, density, biofouling, and sediment dynamics influence the transport and fate of microplastics in estuaries, identifying these transitional zones as both temporary sinks and conduits for plastic pollution.
Suspended microplastics during a tidal cycle in sea-surface waters around Chao Phraya River mouth, Thailand
Researchers sampled microplastics from surface waters around the Chao Phraya River mouth in Thailand during low and high tides. Microplastic concentrations were significantly lower during spring tide than neap tide, suggesting that tidal dynamics play an important role in how plastic particles are distributed and diluted in coastal waters.
Hydrology Modulates the Microplastics Composition and Transport Flux Across the River–Sea Interface in Zhanjiang Bay, China
Researchers measured how tides and seasonal rainfall affect the movement of microplastics through an estuary in southern China. They found that microplastic levels rose during low tides and dropped during high tides, with an estimated 1.6 billion particles flowing from river to sea each year. The findings provide a framework for understanding how water flow patterns drive microplastic transport into coastal environments.
Modeling the fate of microplastics in the Sengkarang Estuary, Pekalongan City, Central Java, Indonesia
Researchers measured microplastic concentrations in water and sediment at the mouth of the Sengkarang River in Indonesia and built a hydrodynamic model to track how tidal currents, wind, and river flow distribute the particles. Microplastics were highest in coastal waters and mangrove sediments, with tides and currents driving horizontal transport and concentrating particles in biologically sensitive habitats. The modeling approach offers a practical framework for predicting where microplastics accumulate and informing pollution management in river-to-sea systems.
Fluctuations in the Microplastic Vertical Distribution Due to Tide in the Tidal Reach of the Oita River
Researchers monitored microplastic vertical distribution through a full tidal cycle in the tidal reach of the Oita River, Japan, finding that concentrations were highest in bottom layers regardless of tidal phase, with accumulation at a saltwater intrusion layer, and that rising tide conditions produced the highest vertically-averaged concentrations.
Dynamic distribution of microplastics in mangrove sediments in Beibu Gulf, South China: Implications of tidal current velocity and tidal range
Researchers examined how tidal current velocity and tidal range influence the distribution of microplastics in mangrove sediments in Beibu Gulf, South China, finding strong linear relationships between current velocity and microplastic content during both flood and ebb tides. Microplastic concentrations increased from the seaward to landward boundary, with tidal current velocity -- but not tidal range -- significantly predicting their accumulation rates.
Analysing the influence of hydrodynamic and sedimentary factors on the microplastic distribution in the Ashtamudi estuary, India
Microplastic abundance in the Ashtamudi estuary in India ranged from 3.2 to 53 items/L, with highest concentrations near river-sea confluences; the study found microplastic distribution inversely correlated with current velocity and directly with suspended sediment concentration, enabling a predictive non-linear transport model.
Occurrence of microplastics and ecological risk assessment during tidal changes in the Chao Phraya River estuary, Thailand
This study was the first to assess how tidal changes affect microplastic concentrations in the Chao Phraya River estuary in Thailand, finding abundances ranging from 1.37 to 4.51 pieces per liter across the tidal cycle. Fibers and fragments dominated, with ecological risk assessed as moderate.
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.
Microplastics in a salt-wedge estuary: Vertical structure and tidal dynamics
Researchers conducted the first study of microplastic distribution in the vertically structured Adour Estuary in France, finding that tidal dynamics and the salt-wedge interface significantly influence microplastic abundance and vertical stratification, with distinct concentration patterns across tidal cycles.
Abundance and variation of microplastics between seasons in a tropical estuary: The case of Can Gio estuary, Vietnam
Researchers assessed seasonal variation in microplastic abundance and characteristics in the Can Gio estuary, Vietnam, across wet and dry seasons. Microplastic concentrations were higher during the wet season, with seasonal plastic transport linked to river discharge and rainfall-driven inputs from upstream urban sources.
Variation in microplastics composition at small spatial and temporal scales in a tidal flat of the Yangtze Estuary, China
Researchers investigated microplastic variation at small spatial and temporal scales in a tidal flat of the Yangtze Estuary, finding that surface sediments had higher microplastic abundances during neap tides than spring tides, and that vegetation zones had distinct microplastic composition compared to bare mudflat areas.
The contribution of estuaries to the abundance of microplastics in Jakarta Bay, Indonesia
Researchers found that rivers draining into Jakarta Bay are a major source of microplastics, with polyethylene fragments in the 300-500 micrometer size range dominating, and that spatial variation in abundance across nine estuaries reflects differences in local land use and waste management.