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61,005 resultsShowing papers similar to Occurrence, distribution and size relationships of plastic debris along shores and sediment of northern Lake Victoria
ClearMicroplastic pollution in surface water of Lake Victoria
Microplastics were detected across all sampling sites in the northern surface waters of Lake Victoria, Africa's largest lake, with concentrations up to 2.19 particles per square meter and 36% of particles smaller than 1 mm. Urban beaches near fish landing sites had the highest concentrations, pointing to local human activity as the primary source.
Plastic pollution in freshwater ecosystems: macro-, meso-, and microplastic debris in a floodplain lake
Researchers surveyed macro-, meso-, and microplastic debris in a South American floodplain lake and found an average of 704 microplastic particles per square meter in sediments, with plastic contamination comparable to marine beaches — demonstrating that freshwater lakes can be major plastic pollution reservoirs.
The Effect of the Litter on the Lake Shoreline, A Case of Rubondo Island National Park, Tanzania.
This study assessed shoreline litter distribution and its ecological effects in Rubondo Island National Park in Tanzania's Lake Victoria, finding plastic debris at multiple sites and documenting impacts on wildlife. The research highlights that protected freshwater ecosystems in East Africa are also affected by plastic pollution from surrounding communities.
Quantitative Analysis of the Sized Ranged Plastic Debris on Beach Shoreline along the Limbe Coastline, Cameroon
Researchers quantitatively assessed the abundance and distribution of plastic debris across four size classes on five sandy beaches in Cameroon, collecting 12,822 particles over 80 sampling quadrants and characterizing accumulation patterns along the coastline.
Occurrence and Distribution of Microplastics from Nepal’s Second Largest Lake
Researchers conducted the first microplastic survey of Phewa Lake in Nepal, finding an average of 55–122.5 microplastic items per kilogram of sediment, with fiber shapes and polypropylene polymers dominating, and highest concentrations near densely populated shorelines.
Microplastic pollution in sediments of tropical shallow lakes
Researchers found microplastics in all sediment samples from 48 tropical shallow lakes across a climatic gradient, with fibres dominating over fragments and polyester being the most common polymer, indicating widespread plastic contamination even in inland freshwater ecosystems.
Microplastics in marine beach and seabed sediments along the coasts of Dar es Salaam and Zanzibar in Tanzania
Researchers found widespread microplastic contamination in beach and seabed sediments along the coasts of Dar es Salaam and Zanzibar, Tanzania, with polyethylene and polyester the dominant polymers and fragments and fibers the most common particle types.
Microplastic contamination in Auckland (New Zealand) beach sediments
Researchers conducted the first large-scale investigation of microplastic contamination in beach sediments across 39 sites in Auckland, New Zealand, finding contamination at the majority of beaches surveyed. Mean abundance varied by coastal environment type, with estuarine and harbour sites generally showing higher concentrations than open ocean beaches.
Occurrence and Spatial Distribution of Microplastics in the Surface Waters of Lake Naivasha, Kenya
Scientists surveyed microplastic abundance and composition in surface waters of Lake Naivasha, Kenya, finding contamination across the lake with higher concentrations near agricultural and urban areas, providing one of the first datasets for a major East African freshwater body.
An analysis of microlitter and microplastics from Lake Superior beach sand and surface-water
Researchers sampled beach sand and surface water in the Apostle Islands National Lakeshore of Lake Superior, finding microlitter particles including microplastics even in this relatively pristine Great Lakes environment, with samples collected in May and July 2018.
Categorization of plastic debris on sixty-six beaches of the Laurentian Great Lakes, North America
Researchers categorized 21,592 plastic debris items from 66 beaches across the Laurentian Great Lakes and found that pre-production plastic pellets dominated at 58% of total items, with the highest densities exceeding 800 items/m2 at beaches near industrial areas in Ontario, Canada.
Abundances and characteristics of small (< 0.3 mm) and large (0.3–5 mm) microplastics found in Aotearoa New Zealand beach sediments
Researchers conducted the first study of microplastic contamination in New Zealand waters, finding that both small (under 0.3 mm) and large (0.3–5 mm) microplastics were present across beach and water samples, with fragment and fiber morphologies dominating the assemblage.
Microplastics in Marine Sediments from Dar es Salaam Coast: Spatial Distribution and Characterization
Researchers found microplastic contamination in marine sediments at four beaches along the Dar es Salaam coast in Tanzania, with the highest concentrations near the surface layer. Identified polymers included polypropylene, polyethylene, polyurethane, and polyamide in fiber, fragment, sponge, and pellet forms.
Variation in plastic abundance at different lake beach zones - A case study
Researchers sampled five beaches on Lake Garda using transects and sediment cores to determine optimal microplastic sampling zones, finding that the drift line consistently accumulates plastic particles across all beaches and provides the most comparable and representative sampling location for lake microplastic assessments.
Spatial distribution of microplastics in volcanic lake water and sediments: Relationships with depth and sediment grain size
Microplastics were mapped in both water and sediment across depth gradients in a volcanic lake, finding that plastic concentrations increased with depth in sediments and were related to sediment grain size. The study provides rare data on microplastic distribution in volcanic lake systems and highlights sediment accumulation as a long-term plastic sink.
Occurrence, distribution and sources of microplastics in beach sediments of Miri coast, NW Borneo
Researchers characterized microplastic pollution in the surface sediments of 10 European rivers, detecting particles at all sites with concentrations ranging from 14 to 895 particles per kilogram of dry sediment. Urban rivers showed the highest contamination levels.
Microplásticos en tres playas del corredor turístico del norte, Piura, Perú
Researchers estimated the abundance, characteristics, and types of microplastics on three beaches along the northern tourist corridor of Piura, Peru, characterising the size, colour, and polymer types of particles found in beach sediments to assess contamination levels in this coastal region.
Microplastics in Northern Laguna Lake’s Shoreline Sediments
Researchers found microplastic contamination in shoreline sediments across three sites in northern Laguna Lake, the Philippines, with concentrations ranging from 296 to 1826 particles per kilogram of sediment, with fragment and fiber types linked to local aquaculture, clothing, and packaging materials.
A comparative review of microplastics in lake systems from different countries and regions
Researchers reviewed microplastic contamination data from lake systems across multiple countries, finding that abundance, size, and polymer type varied widely by region and identifying land use, population density, and hydrological connectivity as key drivers of lake microplastic levels.
Abundance and characterization of microplastics on sandy beaches along the coastal area of Belize
Researchers quantified and characterized microplastic abundance on sandy beaches along the coastal zone of Belize, establishing baseline contamination data for a region of Central America and the Caribbean where such pollution assessments are critically lacking.
Plastic abundance and seasonal variation on the shorelines of three volcanic lakes in Central Italy: can amphipods help detect contamination?
Plastic particles of 1–50 mm were found on the shores of three volcanic lakes in central Italy, with accumulation varying by season and lake. The study calls for standardized monitoring methods for lakeshores, as inland water bodies are important sinks and sources of plastic pollution flowing toward the ocean.
Factors driving the spatial distribution of microplastics in nearshore and offshore sediment of Lake Huron, North America
Researchers found microplastic abundances in Lake Huron sediments ranging from 59 to 335,714 particles per kg dry weight, with the North Channel showing the highest concentrations averaging 47,398 particles per kg. Results indicated that hydrodynamic processes such as waves and currents drive offshore distribution more than proximity to pollution sources.
Occurrence of Microplastics in Surface Sediments of Beaches in Lagos, Nigeria
Microplastics were found in beach sediments at all four sampled sites in Lagos State, Nigeria, with fragments dominating and polypropylene, polyethylene, and polystyrene identified. The results provide baseline data for West Africa's most populous city and highlight the need for better waste management in rapidly urbanizing coastal regions.
Meso- and microplastic composition, distribution patterns and drivers: A snapshot of plastic pollution on Brazilian beaches
A standardized survey of plastic pollution across 22 sandy beaches spanning over 4600 km of Brazilian coast found widespread contamination in coastal sediments, with polymer type, size, and distribution patterns reflecting diverse sources including fishing activity and urban runoff.