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61,005 resultsShowing papers similar to Identification, Abundance, and Distribution of Microplastics in Surface Water Collected from Luruaco Lake, Low Basin Magdalena River, Colombia
ClearMethods to characterize microplastics: case study on freshwater fishes from a tropical lagoon in Colombia
Fish from Colombia's Luruaco Lagoon contained microplastics with prevalence, abundance, and polymer characteristics analyzed across four sampling events, with principal component analysis linking MP types to feeding ecology and habitat use of the different species.
Methods to characterize Microplastics: Case study on freshwater fishes from a tropical lagoon in Colombia
Researchers examined microplastic prevalence, abundance, and physical and chemical characteristics in fish from Luruaco lagoon, Colombia, conducting four sampling events using trawl nets and analyzing gastrointestinal tracts of captured individuals to characterize microplastic ingestion across species.
Abundance, distribution, and characteristics of microplastics in coastal surface waters of the Colombian Caribbean and Pacific
This study documented microplastic abundance, distribution, and characteristics across Colombian Caribbean and Pacific coastal surface waters during the 2017 rainy season, finding concentrations up to 8.96 items per square meter and establishing the first national baseline for microplastic pollution in Colombian coastal waters.
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.
Microplastics of surface waters of Colombian Caribbean
Researchers collected and characterized microplastics from the surface waters of two Colombian Caribbean sectors influenced by major rivers, sampling across dry and rainy seasons and also analyzing the microbial communities living on the plastic surfaces. The study provides baseline pollution data for a region where microplastic research has been minimal, while the metagenomic analysis of plastisphere microbes adds ecological context. Understanding which microbes colonize plastic in tropical Caribbean waters is relevant to assessing whether those particles serve as vectors for harmful or antibiotic-resistant bacteria.
Preliminary Assessment of Plastic Litter and Microplastic Contamination in Freshwater Depositional Areas: The Case Study of Puerto Misahualli, Ecuadorian Amazonia
Researchers conducted a preliminary assessment of plastic litter and microplastics in sediments at a riverine depositional area in the Ecuadorian Amazon, finding low-density polyethylene bags as the dominant macroplastic and documenting microplastic presence in an upper Amazon basin location.
Microplastics in water and fish of commercial interest: Distribution and relation to ecology in the colombians caribbean region, south america
Researchers evaluated microplastic contamination in surface waters and the gastrointestinal tracts of commercially important and invasive fish species along the Colombian Caribbean coast and San Andrés Island, examining the relationship between microplastic distribution and species ecology and geography.
Seasonal analysis of microplastic concentration on the surface of the Guartinaja water body, Bajo Sinú Wetland Complex
Researchers characterized microplastic pollution on the surface of the La Guartinaja marsh in Colombia during rising and falling water periods. The study found concentrations ranging from about 45 to 260 microplastics per liter depending on the season, with fibers being the dominant type at over 80 percent, and used geospatial analysis to map contamination hotspots across the wetland.
Microplastic pollution in water, sediments and commercial fish species from Ciénaga Grande de Santa Marta lagoon complex, Colombian Caribbean
Microplastics were detected in water, sediment, and fish from the Ciénaga Grande de Santa Marta lagoon in the Colombian Caribbean, with concentrations varying by matrix and site. The study represents an early baseline for plastic pollution monitoring in this ecologically important tropical lagoon ecosystem.
Microplastics in water and fish of commercial interest: Distribution and relation to ecology in the colombians caribbean region, south america
Researchers evaluated microplastic contamination in surface waters and the gastrointestinal tracts of two commercially important fish species and one invasive species along the Caribbean coast of Colombia's Atlantico department and San Andres Island, relating distribution patterns to the ecology and geographic range of each species.
Presence of microplastics: Impacts in a marine-coastal environment of the Colombian Caribbean
Researchers surveyed microplastic presence in a marine-coastal environment in Colombia, characterizing particle abundance, polymer types, and size distribution in water and sediment samples. Fibres dominated the samples, with polyester and nylon the most common polymers, pointing to synthetic textile washing as a key local source.
Coastal populations and river discharges as sources of microplastic pollution of the Ciénaga Grande de Santa Marta, Colombian Caribbean
Researchers investigated microplastic contamination in surface waters of the Ciénaga Grande de Santa Marta coastal lagoon in Colombia and assessed the contribution of coastal populations and river discharges as pollution sources. MPs were detected throughout this internationally protected Ramsar site, with proximity to populated areas and river inputs driving spatial variation in contamination.
Microplastic abundance and composition along an anthropogenic pressure gradient in an Andean river (Colombia)
Researchers surveyed microplastic abundance across an altitudinal gradient in a Colombian Andean river, finding highest concentrations in downstream urban and agricultural zones, with fibers and polypropylene dominating across water, sediment, and fish samples—the first report of microplastics in freshwater fish from the Tolima region.
Cuantificación de la presencia de microplásticos en la cuenca alta del río Guayllabamba
This study quantified microplastics in the upper basin of the Guayllabamba River in Ecuador, finding contamination at multiple sites. The results add to evidence that South American rivers far from major industrial centers are already contaminated with microplastics, which eventually flow toward coastal and marine environments.
Microplastic contamination in bivalves: First assessment in three coastal lagoons of the colombian caribbean, south america
Researchers assessed microplastic contamination in bivalves from three coastal lagoons, finding that filter-feeding species readily accumulate particles from surrounding water and sediment. The study characterized particle types and polymer compositions across different lagoon environments.
Microplastic Pollution in Urban Lake Phewa, Nepal: The First Report on Abundance and Composition in Surface Water of Lake in Different Seasons
Researchers conducted the first survey of microplastics in Lake Phewa, a major freshwater lake in Nepal, finding plastic particles in surface water across all seasons. Fiber microplastics were most abundant, consistent with laundry and textile sources. This study provides baseline data for microplastic monitoring in Nepal, where freshwater microplastic research has been largely absent.
Assessing microplastic pollution along the Caribbean coast of La Guajira, Colombia
Researchers conducted the first assessment of microplastic pollution along 125 km of the Caribbean coast of La Guajira, Colombia. They found microplastics at four of seven beaches sampled, with filaments from fishing activities predominating and polymers primarily consisting of polypropylene, polyethylene, and polystyrene.
Impacto De Los Microplásticos En Macroinvertebrados De Ecosistemas Dulceacuícolas En Colombia: Una Revisión De Literatura De La Última Década
This review compiled 10 years of scientific literature on microplastic impacts on freshwater macroinvertebrates in Colombia, finding that despite the environmental importance of these organisms, MP research in Colombian freshwater systems is scarce compared to marine studies. The review called for expanded monitoring and experimental research on MP effects in Colombian rivers and lakes.
Microplastic contamination in bivalves: First assessment in three coastal lagoons of the colombian caribbean, south america
Researchers conducted the first assessment of microplastic contamination in bivalves from three coastal lagoons, examining filter-feeding mollusks that concentrate suspended particles from surrounding waters. Microplastics were detected in bivalve tissues across all sites, establishing baseline contamination levels in these coastal ecosystems.
Microplastics pollution on Colombian Central Caribbean beaches
Researchers conducted a baseline survey of microplastic contamination on Colombia's Central Caribbean Coast beaches, documenting MP types, sizes, and polymer compositions for the first time in that region and finding primarily secondary microplastics from fragmented larger debris.
First assessment of microplastic and artificial microfiber contamination in surface waters of the Amazon Continental Shelf
Researchers characterized microplastics in surface water of the Amazon Continental Shelf for the first time, finding particles at all 57 sampling sites with higher concentrations during the rainy season. Polyamide, polyurethane, and acrylonitrile butadiene styrene were the most common polymer types, and concentrations were highest near river mouths and coastal cities.
A first step to assess suspended microplastics in a freshwater wetland from the coastal region of Ecuador
Researchers conducted the first assessment of suspended microplastics in La Segua wetland in Ecuador, a Ramsar-designated site threatened by agricultural and aquaculture pressures, evaluating potential risks to filter-feeding organisms in aquatic food webs.
Unraveling Microplastic Presence in Freshwater and Sediment of Rejoso River, Indonesia
Researchers investigated microplastic presence in water and sediment of the Rejoso River in Indonesia across 12 sampling sites, characterizing the types, abundances, and distribution patterns of microplastic particles in this tropical freshwater system.
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.