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61,005 resultsShowing papers similar to Distribution of microplastics in surface water of tropical urban lakes: A case study in Ha Noi, Vietnam
ClearThe occurrence of microplastics in the surface water of several urban lakes in the Megacity of Jakarta
Six urban lakes in the Jakarta metropolitan area were all found to contain microplastics in their surface water, with the most downstream lakes closest to Jakarta Bay showing the heaviest contamination. The study highlights how plastic waste flowing through populated urban watersheds accumulates in lakes before eventually reaching the ocean. Dense urban areas with poor waste management are key hotspots for freshwater microplastic pollution.
Microplastics in the surface water of urban lakes in central Vietnam: Pollution level, characteristics, and ecological risk assessment
Researchers surveyed seven urban lakes in central Vietnam and found moderate levels of microplastic contamination, with concentrations varying between dry and wet seasons. Fibers were the most common type of microplastic found, primarily made of polypropylene and PET, and ecological risk assessments indicated low to moderate risk levels for the lake ecosystems.
Emergence of microplastics in the aquatic ecosystem and their potential effects on health risks: The insights into Vietnam
This review examines the growing microplastic contamination in Vietnam's waterways, where concentrations in surface water vary enormously depending on location. Highly populated cities like Hanoi and Ho Chi Minh City show the highest levels, with plastics entering water through agricultural runoff, textile production, and consumer products. The contamination poses health risks to millions of people through drinking water and seafood consumption.
Sources of microplastic pollution in the Saigon-Dong Nai rivers, potential risks affecting human health and recommendations for mitigation solutions
Sampling of the Saigon-Dong Nai river system in Vietnam detected microplastic fragments, films, and fibres at concentrations of up to 715,000 particles per cubic metre, primarily sourced from urban runoff, wastewater, and industrial discharge. Because these rivers supply drinking water and support subsistence fishing for millions of people, the findings highlight a significant and largely unquantified human exposure pathway to microplastics in a rapidly urbanising region.
A Review of Microplastics Pollution in the River Basin of Vietnam in Comparison with the World Context
This review examines microplastic pollution across Vietnam's river basins in the context of global patterns, finding significant contamination in surface water, sediments, aquatic organisms, and mangrove ecosystems — particularly in coastal urban areas — with concentrations in some urban rivers reaching 519,000 pieces/m³.
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.
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.
Urban tropical freshwater ponds as microplastics hotspots—insight on abundance and characteristics using an improved sampling technique
Researchers surveyed 20 urban freshwater ponds in central India and found microplastics present in all of them, with fragments, films, and foams being the most common types. They introduced an improved, low-cost sampling technique that does not require boats, making it practical for studying smaller water bodies. The results confirm that urban ponds are significant hotspots for microplastic accumulation, with polyethylene and polystyrene being the dominant polymer types.
Macroplastic and microplastic contamination assessment of a tropical river (Saigon River, Vietnam) transversed by a developing megacity
Researchers assessed macroplastic and microplastic contamination in a tropical river in Vietnam, finding elevated pollution levels linked to urban and agricultural land use along the waterway.
Microplastic occurrence in rural and urban surface waters: the cases of Lake Sampaloc and Lake Yambo in San Pablo City, Laguna, Philippines
This study compared microplastic contamination in two Philippine lakes with different human-use profiles — one used for ecotourism and one more urbanised — finding microplastic particles in both, with characteristics reflecting local pollution sources. The results underscore that freshwater lakes, even smaller and less-studied ones, are not spared from microplastic pollution and warrant greater monitoring attention.
Characteristics of Microplastics and Their Affiliated PAHs in Surface Water in Ho Chi Minh City, Vietnam
Researchers characterized microplastics and associated polycyclic aromatic hydrocarbons (PAHs) in surface water across canals, the Saigon River, and coastal waters in Ho Chi Minh City, Vietnam, finding microplastics at all sites with the highest concentrations in urban canals and detecting co-occurring PAH contamination.
Distribution, Characteristics, and Ecological Risk Assessment of Microplastics and Heavy Metals in Surface Water at Hoa Binh Reservoir
Researchers sampled surface water in Hoa Binh Reservoir, Vietnam, during rainy and dry seasons, finding microplastics at all sites with fiber-dominated assemblages, and documenting co-occurrence with heavy metals including chromium, manganese, and lead.
Distribution and Characteristics of Microplastics in Nhue - Day River Basin, Vietnam
Researchers investigated the distribution and characteristics of microplastics in the Nhue-Day River Basin in Vietnam, finding that microplastic abundance varies with seasonal changes and anthropogenic activities, posing threats to the ecosystem and the roughly 12 million people who depend on this river.
A preliminary assessment of microplastic occurrence and their potential risk as pollutant transport vectors: A case study in Phu Ly, Ha Nam, Vietnam
Researchers conducted a preliminary assessment of microplastic occurrence in Vietnam, identifying microplastics in environmental samples and raising concern about their role as vectors for co-transported pollutants in an undersampled region of Southeast Asia.
Microplastics pollution in inland freshwaters of China: A case study in urban surface waters of Wuhan, China
Researchers characterized microplastic pollution in inland freshwaters across urban suburban areas of China, finding contamination that reflected land use intensity and population density in the surrounding catchments.
Risk levels of microplastic pollution in surface water and sediments at Ba Be Lake
Researchers assessed microplastic pollution in surface water and sediments of Ba Be Lake, Vietnam, documenting MP concentrations, polymer types, and spatial distribution to characterize contamination levels and ecological risk in this protected freshwater lake ecosystem.
Distribution and characteristics of microplastics in surface water at some beaches in Thanh Hoa province, Viet Nam
Researchers characterized microplastic density, shape, size, and color in surface water at three beaches in Thanh Hoa province, Vietnam, finding high microplastic concentrations in this coastal marine environment. The study assessed microplastic exposure risks in a region where contamination can enter the food chain through aquatic organisms.
First observation of microplastics in surface sediment of some aquaculture ponds in Hanoi city, Vietnam
Researchers conducted the first observation of microplastics in surface sediment from aquaculture fish ponds in Hanoi, Vietnam. The study found microplastic concentrations ranging from approximately 2,767 to 2,833 items per kilogram of dry sediment. The findings suggest that aquaculture ponds in urban areas accumulate significant levels of microplastic contamination, with potential implications for the food chain.
Microplastic Pollution in Surface Water of Urban Lakes in Changsha, China
Microplastic concentrations were measured in eight urban lakes in Changsha, China, with researchers finding widespread contamination and identifying local land use and hydrological connectivity as key factors influencing microplastic abundance.
Abundances and characteristics of sedimentary microplastics in the three main Vietnamese Rivers
Researchers characterized the abundance, types, and distribution of microplastics in sediments of Vietnam's three major rivers, contextualizing findings within Vietnam's status as one of the world's top plastic waste-polluting countries with approximately 3.1 million metric tons of mismanaged plastic waste annually.
Distribution of microplastics in surface water from Saigon River to Can Gio Sea
Researchers found widespread microplastic contamination in surface water samples from the Saigon River and Can Gio Sea in Vietnam, with concentrations and particle types shifting from river to coastal environments, reflecting the transport of land-based plastic pollution into marine systems.
Urban drainage channels as microplastics pollution hotspots in developing areas: A case study in Da Nang, Vietnam
An urban drainage channel in Da Nang, Vietnam receiving domestic wastewater and landfill leachate was identified as a microplastic hotspot, with high concentrations of diverse plastic types reflecting both household and industrial sources. The study highlights drainage infrastructure in rapidly developing Asian cities as significant conduits for microplastic transport to coastal waters.
Baseline assessment of microplastic concentrations in marine and freshwater environments of a developing Southeast Asian country, Viet Nam
Researchers conducted the first baseline assessment of microplastic concentrations across marine and freshwater environments in Viet Nam, adapting sampling methods for developing-country conditions. They found microplastics present in all sampled water bodies, with concentrations comparable to those reported in more industrialized nations. The study establishes important reference data for tracking future pollution trends in Southeast Asian waterways.
Global microplastic contamination in freshwater lakes: Spatial patterns, environmental drivers, and methodological challenges
This review systematically analyzed 84 studies covering more than 300 lakes worldwide to assess global microplastic contamination in freshwater lake systems. Surface water MP concentrations ranged from below 0.001 to over 200 MP/L, with fibers and fragments dominating, polyethylene and polypropylene most common, and highest levels found in shallow, lowland, and eutrophic systems near urbanized shorelines.