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61,005 resultsShowing papers similar to Detection in influx sources and estimation of microplastics abundance in surface waters of Rawal Lake, Pakistan
ClearPlastic driven pollution in Pakistan: the first evidence of environmental exposure to microplastic in sediments and water of Rawal Lake
This study provides the first evidence of microplastic contamination in a freshwater body in Pakistan, examining surface water and sediments of Rawal Lake near Islamabad. Researchers found microplastics in both water and sediment samples, with fibers and fragments being the most common types, composed primarily of polyethylene, polypropylene, and polyester. The study suggests that high population density, improper waste disposal, and recreational activities are the main drivers of contamination.
Comprehensive analysis of spatial distribution of microplastics in Rawal Lake, Pakistan using trawl net and sieve sampling methods
Researchers conducted a comprehensive spatial analysis of microplastics in Rawal Lake, Pakistan, finding that sampling methodology significantly influences microplastic counts and revealing widespread contamination across tributaries, settlement areas, and fishing zones.
An unintended challenge of microplastic pollution in the urban surface water system of Lahore, Pakistan
Researchers conducted the first investigation of microplastic pollution in the urban freshwater systems of Lahore, Pakistan, sampling surface water and sediments from drains and canals of the Ravi River and finding highest microplastic concentrations in heavily polluted sullage carriers.
Unveiling microplastic pollution in Rawal Lake: Assessment and treatment in different environmental compartments
Researchers quantified and characterized microplastics in water, sediments, and fish from Rawal Lake in Pakistan, finding widespread contamination across all environmental compartments. The study also evaluated magnetic extraction and chemical coagulation as treatment approaches for removing microplastics from water, identifying effective removal pathways.
Microplastic Pollution in Surface Waters and Sediments of Urban Lake
This book chapter reviews microplastic pollution in urban lake surface waters and sediments, describing sources, distribution patterns, and the ecological consequences of MP accumulation in these widely used but understudied freshwater habitats.
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.
Microplastics abundance in abiotic and biotic components along aquatic food chain in two freshwater ecosystems of Pakistan
Researchers quantified microplastic abundance across multiple trophic levels in two Pakistani freshwater ecosystems, finding evidence of bioaccumulation along the food chain from water and sediment through invertebrates to fish species.
First evidence of microplastics in surface water of urban waterbodies in Bhopal city, India- abundance and their characteristics
Researchers documented the first evidence of microplastics in surface water of urban waterbodies in Bhopal, India, characterizing particle abundance, morphology, and polymer composition across multiple sites and identifying nearby plastic waste disposal as the primary source.
Abundance and characteristics of microplastics in major urban lakes of Dhaka, Bangladesh
Researchers measured microplastic contamination in three major urban lakes in Dhaka, Bangladesh, finding plastic particles in the water, sediment, and fish at all sites. The dominant plastics were common consumer types like polyethylene and PVC, with sizes mostly under 100 micrometers. Since these lakes are in a densely populated urban area, the findings raise concerns about microplastic exposure for the local population through both water and fish consumption.
Assessment and treatment of microplastics in different environmental compartments of Kallar Kahar Lake—a case study
Researchers quantified and characterized microplastics in surface water, sediments, and fish from Kallar Kahar Lake in Punjab, Pakistan, and tested magnetization and coagulation-flocculation as removal methods. Both treatments reduced MP concentrations in water samples, providing early data on freshwater MP pollution in Pakistan and demonstrating accessible treatment options for lake water management.
Abundance and characteristics of microplastics in major urban wetlands of Dhaka, Bangladesh
Microplastics were found in water, sediment, and fish from three major urban lakes in Dhaka, Bangladesh, with concentrations ranging from 0 to 9 items per liter in water samples. Fibers were the most common type across all matrices, pointing to textile washing and wastewater discharge as key local sources.
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 urban Lake Phewa, Nepal: the first report on abundance and composition in surface water of lake in different seasons
Surface water from Lake Phewa, Nepal's second-largest lake, was analyzed for microplastics across seasons in the first such study from Nepal, finding plastics present in all samples with concentrations varying seasonally. The results establish a baseline for freshwater microplastic monitoring in a South Asian developing country context and raise concerns about impacts on a lake important for tourism and local livelihoods.
Spatial distribution and characteristics of microplastics and associated contaminants from mid-altitude lake in NW Himalaya
Researchers documented microplastic contamination and associated phthalate esters in Rewalsar Lake in the Northwest Himalayas, demonstrating that even remote mid-altitude freshwater lakes are significantly affected by microplastic pollution.
Microplastics in the high-altitude Himalayas: Assessment of microplastic contamination in freshwater lake sediments, Northwest Himalaya (India)
Researchers assessed microplastic contamination in sediments of freshwater Anchar Lake in the Kashmir Himalayas, finding an average of 606 particles per kilogram dominated by polyamide fibers, with domestic wastewater and textile sources identified as primary contributors.
The measurement of microplastics in surface water and their impact on histopathological structures in wading birds of district Lahore
Researchers measured microplastic pollution in surface water around Lahore, Pakistan, and examined its effects on local wading birds. The Ravi River had the highest contamination, with over 5,000 particles per cubic meter, and birds living near these waters showed tissue damage in multiple organs. This study demonstrates that microplastic pollution in urban waterways can harm wildlife and may indicate broader risks for communities relying on these water sources.
Sources, concentrations, distributions, fluxes and fate of microplastics in a hypersaline lake: Maharloo, south-west Iran
Researchers investigated microplastic sources, concentrations, distributions, and fate in the hypersaline Maharloo Lake in southwest Iran and its inflowing anthropogenically impacted rivers, finding river microplastic concentrations ranging from 0.05 MP/L in headwaters to approximately 2 MP/L downstream of industrial effluents. The study provides one of the first assessments of microplastic dynamics in a hypersaline lake ecosystem.
Prevalence of Microplastic Pollution in Freshwater Ecosystem: A Case Study of Thal Canal
Researchers surveyed microplastic contamination in a freshwater ecosystem in a case study region, measuring particle concentrations and types in water and sediment samples across multiple sites. Microplastics were detected at all sampling locations with higher concentrations near urban areas, and fibres and fragments were the dominant particle morphologies found.
Co-occurrence of microplastics and heavy metals in a freshwater lake system in Indian Himalaya: Distribution and influencing factors
Researchers found widespread microplastic contamination in both the water and sediments of Manasbal Lake in the Indian Himalayas, with concentrations up to 4,020 particles per kilogram of sediment. Domestic sewage was identified as the primary source, and the microplastics were found alongside elevated levels of heavy metals like lead. This co-contamination is concerning because microplastics can absorb and transport heavy metals, potentially increasing toxic exposure for communities that depend on the lake.
Microplastics in water, sediments, and fish at Alpine River, originating from the Hindu Kush Mountain, Pakistan: implications for conservation
Researchers examined microplastic contamination in water, sediments, and fish from the Swat River in Pakistan, originating from the Hindu Kush Mountains. The study found microplastics present across all sample types, even in this relatively remote mountain river system, with concentrations linked to municipal and industrial discharges along the river.
Microplastics Flowing into Lake Winnipeg: Densities, Sources, Flux, and Fish Exposures
Researchers characterised microplastics flowing into Lake Winnipeg from upstream rivers, determining densities, sources, and flux rates and assessing fish exposure, finding that riverine inputs are a significant pathway delivering microplastics to this large freshwater lake.
Pollution status of microplastics in the sediments of warm monomictic Dal lake, India: Abundance, composition, and risk assessment
Researchers conducted the first investigation of microplastic contamination in the sediments of Dal Lake in Jammu and Kashmir, India. They found concentrations ranging from 503 to over 3,000 particles per kilogram, with the highest levels occurring in spring, and identified multiple polymer types with polyester and polyethylene being most common. The study establishes baseline pollution data for this ecologically important lake and highlights the seasonal patterns of microplastic accumulation.
Risk assessment of microplastic pollution in urban lakes and peripheral Rivers of Dhaka, Bangladesh
Researchers assessed microplastic abundance and ecological risk in urban lake and river surface water and sediments across Dhaka, Bangladesh. Microplastics were detected at all 19 sites, with polymer hazard quotients indicating elevated ecological risk, particularly in heavily urbanized and industrialized locations.
Occurrence of microplastics in water and sediment of a highly urbanized lake ecosystem in Addis Ababa, Ethiopia
Researchers sampled water and sediment from an urbanized lake in Addis Ababa, Ethiopia, and found microplastics predominantly consisting of polyethylene followed by PET, with small fragments and transparent particles most common. This study provides baseline data on freshwater microplastic pollution in an understudied East African ecosystem.