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61,005 resultsShowing papers similar to [Distribution Characteristics of Microplastics in Ice Sheets and Its Response to Salinity and Chlorophyll a in the Lake Wuliangsuhai].
ClearThe spatial distribution and abundance of microplastics in lake waters and ice during ice-free and ice-covered periods
Researchers investigated how lake ice affects microplastic distribution in Lake Ulansuhai, finding that ice formation traps and concentrates microplastics, altering their spatial distribution and abundance between ice-covered and ice-free periods.
Distribution of microplastics between ice and water in aquatic systems: The influence of particle properties, salinity and freshwater characteristics
Laboratory freezing experiments showed that ice formation in both saltwater and freshwater captures microplastics, but the extent varies significantly with water chemistry, particle shape, and suspended solids — fiber-shaped particles were far less likely to be trapped in ice than fragments. In cold climates, ice can act as a seasonal reservoir that concentrates microplastics and then releases them in large pulses when it melts, making spring snowmelt a potentially significant delivery event for aquatic ecosystems. These findings are relevant for understanding microplastic dynamics in Arctic, subarctic, and temperate freshwater systems.
Microplastic accumulation in one-year freshwater ice: A four-year monitoring study reveals winter dynamics of microplastics
A four-year study of freshwater ice near Finnish urban areas found microplastic concentrations one to two orders of magnitude higher in ice than in the open surface water below, confirming that ice acts as a seasonal trap for microplastics. When ice and snow melt each spring, those concentrated microplastics flush into sediments and water bodies at once, creating a pulse of plastic pollution that is easy to overlook in warm-weather monitoring programs.
Microplastic Particles and Fibers in Seasonal Ice of the Northern Baltic Sea
This study characterized microplastic particles and fibers in seasonal ice samples from the northern Baltic Sea, finding that ice acts as a seasonal reservoir that concentrates and then releases microplastics upon melting.
Entrainment and Enrichment of Microplastics in Ice Formation Processes: Implications for the Transport of Microplastics in Cold Regions
Researchers investigated how microplastic properties and environmental conditions affect their entrainment and enrichment during ice formation, finding that sea ice selectively concentrates microplastics and can serve as both a temporary sink and a transport medium in cold regions.
Seasonal ice encapsulation: the pivotal influence on microplastic transport and fate in cold regions
This study examines how seasonal ice encapsulation influences the transport and fate of microplastics in cold regions, noting that the small size and stability of microplastics allow them to persist even in remote environments including the Arctic and Antarctic. The authors analyze how freeze-thaw cycles and ice dynamics play a pivotal role in controlling microplastic distribution in these ecosystems.
Horizontal and vertical distribution of microplastics in the Wuliangsuhai Lake sediment, northern China
Horizontal and vertical distribution of microplastics in sediments of Wuliangsuhai Lake in Inner Mongolia, China was investigated to understand accumulation patterns in a shallow lake ecosystem. Microplastics were found throughout the lake sediments with depth-dependent vertical profiles, revealing the lake as a substantial reservoir for plastic particle accumulation.
Distribution and impacts of microplastic incorporation within sea ice
Researchers experimentally incorporated microplastics into sea ice to investigate their distribution and impact on ice properties, finding that microplastics concentrate within sea ice at levels far exceeding surface seawater and that their presence alters the physical and optical properties of the ice.
Review of microplastics in lakes: sources, distribution characteristics, and environmental effects
This review analyzes microplastic pollution in lakes worldwide and finds that contamination levels are higher in shallower lakes near populated areas with more human activity. Microplastics accumulate heavily in lake sediments and can also be trapped in seasonal ice, only to be released during warming periods. Since many communities rely on lakes for drinking water and fishing, understanding how microplastics concentrate in these freshwater systems is critical for protecting public health.
Occurrence characteristics and ecological risk assessment of microplastics in Urban river in cold regions during ice-covered periods
This study measured microplastic occurrence in urban river water in Harbin, China, during winter ice-covered periods when ice blocks pollutant diffusion. Microplastic concentrations were elevated under ice, with fibers dominating, suggesting that ice-covered rivers temporarily trap and concentrate microplastics with potential ecological consequences when ice melts.
Analysis of microplastic sources in Wuliangsuhai Lake, China: Implications to microplastic deposition in cold, arid region lakes
Researchers used trajectory modeling, receptor modeling, and field monitoring to characterize atmospheric microplastic deposition into a cold, arid lake in Inner Mongolia, finding that spring deposition was highest, fiber-type polyethylene terephthalate and polyethylene particles dominated, and urban sources including housing, transportation, and agriculture were the main contributors — adding tons of microplastics to the lake annually via air.
Microplastics in sea ice: A fingerprint of bubble flotation
Researchers ran controlled laboratory experiments on ice formation from fresh and saltwater to understand how bubble flotation drives microplastic incorporation and concentration in sea ice, finding that bubbles entrain plastic particles during freezing and explain the unexpectedly high and compositionally distinct microplastic loads found in sea ice.
Revealing the Freezing-Induced Alteration in Microplastic Behavior and Its Implication for the Microplastics Released from Seasonal Ice
Researchers revealed how freeze-thaw cycling alters microplastic behavior in environmental matrices, finding that freezing changes particle aggregation, surface properties, and transport dynamics with implications for polar and seasonally frozen environments.
Effects of lakeshore landcover types and environmental factors on microplastic distribution in lakes on the Inner Mongolia Plateau, China
This study measured microplastic contamination in lakes across the Inner Mongolia Plateau and found levels ranging from 0.5 to 12.6 particles per liter in water, with polypropylene being the most common type. Lakes near farmland and human activity had the highest contamination, showing that agriculture and tourism are major sources of microplastic pollution. The findings are relevant because these lakes serve as water sources for surrounding communities.
Microplastics in a Remote Lake Basin of the Tibetan Plateau: Impacts of Atmospheric Transport and Glacial Melting
Microplastics were found in a remote Tibetan Plateau lake basin and the researchers identified both long-range atmospheric transport and glacial meltwater as delivery pathways, with meltwater becoming an increasingly significant release mechanism as climate-driven glacier retreat accelerates.
Microplastics in the surface water of Wuliangsuhai Lake, northern China
Microplastics were detected in Wuliangsuhai Lake in Inner Mongolia, one of China's largest lakes, at concentrations of 3 to 11 particles per liter, with fibers most abundant and small particles under 2 mm making up 98% of the total. Agricultural wastewater, domestic sewage, and fishery discharges were identified as the main sources of contamination.
Spatiotemporal and vertical distribution characteristics and ecological risks of microplastics in typical shallow lakes in northern China
Researchers studied how microplastics are distributed across water, the viscous sublayer, and sediment layers in Baiyangdian, a shallow lake in northern China, during both wet and dry seasons. They found that microplastic abundance was highest in residential areas and that the vertical distribution pattern reversed between seasons. The study highlights that seasonal water level changes significantly affect where microplastics accumulate in shallow lake ecosystems.
Microplastics in a remote lake basin of the Tibetan Plateau: Impacts of atmospheric transport and glacial melting
Researchers investigated microplastic contamination in a remote Tibetan Plateau lake basin, finding that both atmospheric transport via rainfall and glacial melting contribute microplastics to this pristine environment, with concentrations increasing in glacial meltwater areas.
Unmasking Microplastic Pollution: A Study on the Distribution and Impact of Microplastics in Yuehai Lake, China
This study surveyed microplastic characteristics and distribution across water samples from Yuehai Lake in China, finding widespread contamination with fragments and fibers, and identifying local anthropogenic activities and atmospheric deposition as primary sources.
Arctic sea ice is an important temporal sink and means of transport for microplastic
This study showed that Arctic sea ice acts as a significant temporary reservoir for microplastics, trapping particles that are then released when ice melts, making sea ice both a sink and a transport mechanism for microplastic pollution.
[Characterization of Microplastic Pollution of Sediments from Urban Lakes].
Sediments from urban lakes in Maanshan City, China contained microplastics in both spring and summer, with fragments and fibers as the most common types. Local industrial and domestic activities were identified as the likely sources, adding to evidence of widespread microplastic contamination in freshwater sediments.
Global warming releases microplastic legacy frozen in Arctic Sea ice
Researchers demonstrated that Arctic sea ice stores a legacy microplastic burden accumulated over decades, and that accelerating sea ice melt from global warming will increasingly release these stored plastics back into the ocean.
Frazil Ice FormationCauses Divergent Levels of Microplasticand Nanoplastic Accumulation in Sea Ice
Researchers experimentally quantified micro- and nanoplastic enrichment by frazil ice formation, finding that high-density microplastic concentrations were approximately 2.97 times higher in sea ice than in underlying seawater, while nanoplastics showed divergent accumulation behavior based on particle size.
Frazil Ice FormationCauses Divergent Levels of Microplasticand Nanoplastic Accumulation in Sea Ice
Researchers experimentally quantified micro- and nanoplastic enrichment by frazil ice formation, finding that high-density microplastic concentrations were approximately 2.97 times higher in sea ice than in underlying seawater, while nanoplastics showed divergent accumulation behavior based on particle size.