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61,005 resultsShowing papers similar to Urban tropical freshwater ponds as microplastics hotspots—insight on abundance and characteristics using an improved sampling technique
ClearFirst 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.
Occurrence And Fate Of Microplastics In Urban Freshwater Systems
Microplastics were found in urban freshwater pond sediments at highly variable concentrations, with buoyant particles dominating by mass and water mixing playing a key role in distributing plastic particles through the water column.
Distribution of microplastics in surface water of tropical urban lakes: A case study in Ha Noi, Vietnam
Surface water surveys across three urban lakes in Hanoi found microplastics in all locations, with abundance highest in West Lake, which is surrounded by dense population, restaurants, and aquaculture activity. The findings confirm that urban lakes in developing Southeast Asian cities are significant microplastic repositories, with direct implications for the people who use these waters for recreation, fishing, and drinking water supply.
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 freshwater lakes: A case study from Southern India
Researchers assessed microplastic contamination in Vellayani Lake, a major drinking water source in southern India, and found particles present across all sampling sites and seasons. Fibers were the most common shape, with polyethylene and polypropylene as the dominant polymer types, likely originating from domestic wastewater and fishing activities. The study highlights the need for monitoring microplastic pollution in freshwater lakes that serve as critical drinking water supplies.
Baseline Study on Microplastics in Indian Rivers under Different Anthropogenic Influences
Researchers collected microplastic samples from Indian rivers under different levels of anthropogenic influence and found MPs in all sites, with concentrations correlating with population density and industrial activity, providing one of the first systematic field datasets for major Indian river systems.
Occurrence of microplastic in the water of different types of aquaculture ponds in an important lakeside freshwater aquaculture area of China
Microplastics were detected in aquaculture pond water across an important freshwater aquaculture region in China, with pond type and cultured species influencing microplastic occurrence and composition.
Microplastics in Asian freshwater ecosystems: Current knowledge and perspectives
This review of microplastic research in Asian freshwater ecosystems from 2014 to 2021 found that Asia is a global hotspot for freshwater microplastic pollution, driven by rapid urbanization and economic growth, with fibers from textile washing and fragments from plastic debris degradation as dominant types.
Microplastic Transport and Accumulation in Rural Waterbodies: Insights from a Small Catchment in East China
Microplastics were sampled from drainage ditch sediments across forest, agricultural, horticultural, and urban areas in a Nanjing catchment, finding 922 MP particles of six dominant polymer types with concentrations varying by land use and pond connectivity within the catchment.
Microplastic Pollution in Waters and Sediments in a Lentic System: A Case Study in a Tropical Wet Urban Lake of Samarinda, Indonesia
Researchers sampled water and sediment from a tropical urban lake in Samarinda, Indonesia, finding microplastic contamination at all 10 sampling sites with an average of 0.91 particles per litre in water and 375 particles per kilogram in sediment. Fibres — likely from textiles — dominated in both water and sediment, and polyethylene was the most common polymer identified. The study highlights how urban lakes in rapidly developing tropical cities are becoming significant repositories of microplastic pollution, driven by inadequate waste management infrastructure.
Microplastics: an emerging environmental contaminant in surface water bodies of Indore, Central India
Researchers examined microplastic contamination in three lakes in the Indore district of Madhya Pradesh, Central India, collecting water samples and performing risk assessment to characterize microplastic abundance, morphology, and polymer types in these freshwater bodies. The study found microplastics present across all sampled lakes, contributing baseline data on microplastic pollution in central Indian urban freshwater ecosystems.
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.
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.
Microplastics pollution in inland aquatic ecosystems of India with a global perspective on sources, composition, and spatial distribution
Researchers reviewed microplastic contamination in India's rivers, lakes, and wetlands, finding widespread pollution across water, sediment, and wildlife, with concentrations peaking during monsoon season due to runoff. The review highlights a critical gap: most studies don't account for how water flow and seasonal variation affect where microplastics go, making it hard to gauge the true health risk to people and ecosystems.
Microplastics pollution in urban freshwater sediments: A descriptive assessment of land-use categories
A study of stormwater retention ponds across different urban land uses in an unspecified city found that microplastic concentrations in pond sediments varied by land type, with levels linked to the surrounding activities such as residential, educational, and mixed-use development. Using Nile red fluorescence staining for identification, the research maps how urban stormwater systems accumulate microplastics and highlights these ponds as overlooked pollution hotspots. Understanding which land uses drive the most contamination can help target urban plastic management interventions.
Microplastic contamination in Indian rural and urban lacustrine ecosystems
Researchers surveyed 39 rural and urban lakes across Tamil Nadu, India, for microplastic contamination and found particles present in water and sediment samples from every lake studied. Urban lakes had significantly higher microplastic concentrations than rural ones, with fibers being the most common particle shape across all sites. The study provides one of the most comprehensive assessments of freshwater microplastic pollution in India, revealing that even relatively remote lakes are not free from contamination.
Comprehensive study of the microplastic footprint in the urban pond and river of Eastern India
Scientists measured microplastic contamination in an urban river and pond in Eastern India and found concerning levels of 59-100 particles per liter in water and 167-193 particles per gram in sediment, with risk assessments showing crisis-level pollution. The dominant plastics found -- nylon and polyethylene -- come from everyday products, and the high contamination levels in these freshwater sources pose risks to the communities that depend on them.
Microplastics in a Stormwater Pond
Researchers analyzed microplastics in the water, sediments, and vertebrate fauna of a stormwater retention pond, finding widespread microplastic contamination across all compartments with the pond appearing to act as a sink that concentrates microplastics from urban runoff.
Microplastic analysis in urban areas and their impact on quality of life
Researchers reviewed the growing threat of microplastic pollution to biodiversity and human health, focusing on freshwater systems as a key exposure pathway. The study emphasizes the need for standardized identification methods for microplastics in freshwater environments.
Distribution of microplastics in the catchment region of Pallikaranai marshland, a Ramsar site in Chennai, India
Researchers analyzed microplastic distribution in surface water and sediments of the Pallikaranai marshland, a Ramsar-designated wetland in Chennai, India, finding significant contamination in this ecologically sensitive freshwater ecosystem that serves as an important urban biodiversity hotspot.
Tracing microplastic footprints in pristine ecosystems: Insights and implications of Parsons Valley and Sandynulla Lakes, Western Ghats
Researchers conducted the first microplastic assessment of surface waters in Parsons Valley Lake and Sandynulla Lake in the Western Ghats, India, collecting 40 samples and identifying polyethylene and nylon as the dominant plastic types. Pollution levels were highest near tourist and waste disposal areas, and built-up area expansion between 2017 and 2024 was identified as a key driver of microplastic input into these pristine ecosystems.
Assessment of Microplastics in Pond Water and Sediments in Vadodara City, India
Researchers assessed microplastic pollution in pond water and sediments in Vadodara City, India, characterizing particles by shape, size, and polymer type and using morphological analysis to infer probable sources and environmental behavior of the contaminants.
Investigation of microplastic pollution index in the urban surface water: A case study in west Godavari district, Andhra Pradesh, India
Researchers found microplastics in surface water and water treatment plants in the West Godavari region of India, with common types including polypropylene and PVC. Risk assessments showed that the type of plastic polymer poses a greater health risk than the amount of microplastics present. The study estimated daily, annual, and lifetime intake levels for people using these water sources.
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.