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61,005 resultsShowing papers similar to Microplastic contamination of the setun river
ClearMicroplastic contamination of the setun river
This study documented microplastic contamination in the Setun River in Moscow, Russia, characterizing the types, shapes, and abundance of particles present. Urban rivers like the Setun act as conduits carrying plastic pollution from cities into larger waterways and ultimately to oceans, making their contamination levels important reference points for understanding plastic transport.
Screening of Мicroplastic Сontent in Surface Waters of Russian Rivers
Microplastics were detected in surface waters of multiple Russian rivers across different watersheds, with secondary plastic forms indicating fragmentation of larger plastic waste as the dominant source. Sampling covered rivers in the Ural, Siberian, and European Russia regions. The study establishes baseline data for microplastic contamination in understudied Russian freshwater systems.
Microplastics in Russian Freshwater Systems: a Review
This review synthesizes published research on microplastic contamination in Russian freshwater systems, cataloguing particle abundance, polymer types, and spatial distribution patterns across rivers and lakes despite the relatively limited number of Russian studies compared to global literature.
Microplastic Concentrations in Some Rivers and Reservoirs in Southern Russia
Researchers assessed microplastic concentrations in major rivers and reservoirs of southern Russia — including the Lower Don, Lower Volga, Seversky Donets, and Tsimlyansk Reservoir — using multiple sampling methods across several years. Concentrations ranged from 12.3 to 94.32 particles/m3 in more recent surveys, with the highest accumulation observed in anthropogenically impacted areas, tributaries, and near hydraulic structures, and transparent polyethylene and PET fibers being the most common particle type.
Preliminary Screening for Microplastic Concentrations in the Surface Water of the Ob and Tom Rivers in Siberia, Russia
Researchers conducted a preliminary survey of microplastic concentrations in surface water of the Ob and Tom Rivers in western Siberia, finding averages of 44.2-51.2 items per cubic meter with over 93% of particles smaller than 1 mm, establishing baseline data for Arctic-flowing Russian rivers that were previously unmapped for microplastic pollution.
Microplastics in Freshwater: A Focus on the Russian Inland Waters
This review synthesizes data on microplastic pollution in Russian inland waters, finding that synthetic polymer particles are accumulating across rivers, lakes, and groundwater systems, with fibers and fragments being the most prevalent forms detected.
Micro- and Nanoplastics pollution in the aquatic environments in Russia and detection problems
This Russian review examines micro- and nanoplastic pollution in aquatic environments in Russia and discusses the challenges of detecting these particles accurately. The authors highlight gaps in monitoring coverage and call for standardized detection methods to better understand the extent of plastic contamination in Russian freshwater and marine systems.
Occurrence, distribution, and possible sources of microplastics in the surface river water in the Arakawa River watershed
Researchers investigated the occurrence, distribution, and potential sources of microplastics in surface river water along the Arakawa River watershed running through the Tokyo Metropolitan area, contributing to data on microplastic contamination in populated urban freshwater systems.
Occurrence and Detection Problems of Micro- and Nanoplastics in the Water Environment of Russia
This review analyzes micro- and nanoplastic contamination in natural waters across Russia, mapping occurrence in rivers, lakes, groundwater, and Arctic regions, and evaluating current detection challenges and methodological limitations for characterizing plastic particles smaller than 5 mm and 100 nm respectively in freshwater and marine environments.
Assessment of microplastic debris content in the coastal areas of the Neva Bay
This study assessed microplastic contamination levels along coastal areas of Neva Bay in Russia, documenting plastic particle distribution near urban areas. The authors note gaps in standardized monitoring methods and monitoring station coverage that make it difficult to identify trends in microplastic distribution over time.
[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.
Characteristics, Contamination Levels, and Ecosystem Risk Assessment of Microplastics in Surface Water of a Highly Urbanized River from a Developing Country
Researchers characterized microplastic contamination in an urban river near a megacity in a developing country, finding concentrations of 350 to 660 particles per cubic meter of water. Polyethylene and polypropylene from household and municipal waste were the most common types, and a risk assessment found concerning contamination levels at several sampling sites. The study highlights how rivers in developing nations can serve as major pathways for microplastics to reach the ocean and enter the food chain.
Occurrence, potential sources, and ecological risk assessment of microplastics in the inland river basins in Northern China
Researchers surveyed microplastic pollution in a typical urban river system in Northern China, examining both surface water and sediment samples. They found that river sediments contained dramatically more microplastics than surface water, acting as a sink for this pollution, with polypropylene and polyethylene being the most common types. The study suggests that small fiber and fragment-shaped particles under 0.5 mm dominate these environments, likely originating from everyday plastic products and wastewater discharge.
Research of the Microplastic Content in the Floodplain Alluvium of the Upper Volga
Researchers examined microplastic accumulation in floodplain alluvium of the upper Volga River near the city of Tver, collecting soil samples from within the city and both upstream and downstream using a modified NOAA extraction protocol. Microplastic particles were detected in all samples, with films, granules, and fragments in the 1-2.5 mm size range predominating, and higher concentrations found within the urban area.
Assessment of Small-Scale Microplastics Abundance and Characterization in Urban River: A Case Study in Metro River, Indonesia
Researchers assessed microplastic contamination in the Metro River in Indonesia, finding that abundance and characteristics varied by land use type, with urban areas showing higher concentrations of fragments and fibers in this rapidly developing region.
Changes in distribution and types of plastic debris in urban river shores, Ulaanbaatar city, Mongolia
Researchers surveyed plastic debris along the Tuul River shoreline in Ulaanbaatar, Mongolia, finding that microplastics comprised 63% of debris by count, with polystyrene foam dominating micro- and meso-sized fractions (99% and 72% respectively) and fiber and foam abundance increasing from upstream to downstream, reflecting urbanization patterns.
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.
Microplastics in Surface Waters of the Russian Arctic Seas: Distribution, Concentration, Identification, and Eco-Risks for Fish
Microplastics were detected across surface waters of the Russian Arctic seas, with concentrations and polymer types varying by region and season. The findings document that even high-latitude Arctic waters are not spared from microplastic contamination, likely transported by ocean currents and rivers.
Research of the Microplastic Content in the Floodplain Alluvium of the Upper Volga
Researchers collected and analyzed soil samples from floodplain alluvium along the Upper Volga River near Tver, Russia, using a modified NOAA protocol to detect and characterize microplastic accumulation. Microplastic particles were found in all samples, with the highest concentrations near plastic production and processing enterprises, and films, granules, and fragments in the 1-2.5mm size range predominating.
Microplastic Abundance In Volga River: Results Of A Pilot Study In Summer 2020
Researchers conducted the first comprehensive survey of microplastic pollution along the entire Volga River in summer 2020, finding an average concentration of 0.90 items/m3 with microplastics present in all 34 samples and maximum concentrations near urban centers.
[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.
Spatial distribution and potential sources of microplastics in the Songhua River flowing through urban centers in Northeast China
Microplastics were sampled from river water and wastewater treatment plant effluents at five cities along the Songhua River in northeast China, finding polyethylene and polypropylene as dominant polymers and identifying urban WWTPs as the primary point sources of microplastic input to the river.
Assessment of the sources and inflow processes of microplastics in the river environments of Japan
Researchers mapped microplastic concentrations across 29 Japanese rivers and found plastic particles present at 31 of 36 sampling sites. The concentrations were strongly linked to urbanization and population density, confirming that human activities in river basins are a major driver of freshwater microplastic pollution. The findings demonstrate that significant plastic fragmentation occurs before debris reaches the ocean, making rivers an important area for pollution monitoring.
Assessing small-scale freshwater microplastics pollution, land-use, source-to-sink conduits, and pollution risks: Perspectives from Japanese rivers polluted with microplastics
Researchers assessed microplastic pollution in four small-scale Japanese rivers flowing into the Sea of Japan and Seto Inland Sea. The study found that these small rivers were more heavily polluted than many larger rivers worldwide, with polyethylene, polypropylene, and polyester fibers dominating, suggesting that small-scale rivers are significant but often overlooked conduits transporting land-based microplastics to marine environments.