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61,005 resultsShowing papers similar to Distribution, Characteristics, and Ecological Risk Assessment of Microplastics and Heavy Metals in Surface Water at Hoa Binh Reservoir
ClearMicroplastics 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.
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 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.
Ecological risk assessment of microplastics and heavy metals in Northern Vietnam's estuarine sediments: A case study of Ba Lat and Bach Dang
Researchers assessed microplastic abundance and ecological risk alongside ten heavy metals in estuarine sediments from the Ba Lat and Bach Dang estuaries of northern Vietnam's Red-Thai Binh River system, finding co-contamination patterns that pose compounded ecological risks to these biodiverse coastal ecosystems.
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 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.
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.
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.
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.
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 in sediments from urban and suburban rivers: Influence of sediment properties
Researchers measured microplastic concentrations in sediments from 12 sites across three Vietnamese rivers in the Red River Delta during dry and rainy seasons, finding concentrations ranging from 1,600 to 94,300 items per kg dry weight. Fiber-dominated microplastic contamination was strongly influenced by sediment properties including grain size and organic carbon content.
Combined risks of microplastics, trace metals, and antimicrobial resistance in the Nhue–Day River Basin, Vietnam
Researchers investigated the Nhue-Day River basin in Vietnam — a heavily industrialized and agricultural watershed — and found microplastics across all sampled sites acting as carriers for trace metals like lead, chromium, and arsenic, with fishponds showing 6.5 times higher microplastic levels than rivers. Antibiotic resistance genes were also detected near industrial discharge points, though a direct link to microplastics was less clear. The study provides an important baseline for a region where contaminated water is used directly for irrigation and fish farming, raising food safety concerns.
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.
Evidence of Microplastics in Agricultural Water Systems of Ninh Binh Province, Northern Vietnam
Researchers conducted the first documented study of microplastics in agricultural water systems in Vietnam, collecting water samples from 15 representative sites within canal irrigation networks in Kim Son district, Ninh Binh province, to characterize microplastic abundance, morphology, and polymer composition in this previously unstudied agricultural water environment.
Relationship between microplastics and heavy metals in Tam Giang-Cau Hai lagoon sediments
Researchers investigated the distribution and interactions of microplastics and ten heavy metals in sediments of the Tam Giang-Cau Hai Lagoon in Vietnam, finding moderate microplastic contamination and using Spearman correlation and PCA to assess relationships between sediment properties, metal concentrations, and plastic abundance. The study provides baseline data for understanding co-pollution dynamics in this coastal lagoon ecosystem.
Occurrence Characteristics and Ecological Risk Assessment of Microplastics in Aquatic Environments of Cascade Reservoirs Along the Middle-Lower Han River
The occurrence characteristics and ecological risk of microplastics were assessed in a specific environment, providing spatial distribution data and risk indices. Such assessments are important for establishing baseline contamination levels and identifying sites requiring remediation.
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.
Characterization of Microplastics in Household Tap Water in Vietnam's Rural Areas: A Preliminary Study in the Red River Delta Region
Researchers conducted the first survey of microplastic contamination in household tap water in rural areas of Vietnam's Red River Delta. The study found an average of 6.8 microplastic particles per liter, mostly fragments and fibers smaller than 200 micrometers, with a polymer hazard index indicating high pollution risk levels across the sampled tap water.
Risk Assessment of Microplastic Exposure in the Marine Sediment of Southern Central Waters of Vietnam
Researchers collected sediment samples from 14 sites in southern central Vietnamese coastal waters and detected microplastics at all locations (100–1,350 MPs/kg), identifying fibers and fragments as the dominant forms and nine polymer types, providing the first microplastic baseline for this region.
Classification of microplastic characteristics in surface water and sediments in the lower Mekong river (Vietnam) in the dry season
Researchers analyzed microplastic distribution and polymer composition at 17 locations along the Mekong River in Vietnam during the April 2024 dry season, collecting samples from both surface water and riverbed sediments and characterizing them by optical microscopy and FTIR spectroscopy. They found that microplastic densities were higher in more urbanized areas and were influenced by geographical location, transportation activities, population density, and local hydrological characteristics.
Assessment of microplastic abundance and characteristics in the coastal water of Hai Phong, Vietnam
Researchers assessed microplastic abundance and characteristics in coastal waters of Hai Phong, Vietnam, finding concentrations of 11.1 items per cubic meter in net samples and 1,515.4 items per cubic meter in bucket samples, with fibers accounting for more than 60% of the 2,659 particles identified.
Occurrence and characteristics of microplastics in water and sediment samples along the red river to the gulf of tonkin, vietnam
Researchers surveyed microplastics in water and sediment along Vietnam's Red River from inland areas to the Gulf of Tonkin, documenting the types, sizes, and polymer compositions present. The findings show how a major river system acts as a pathway delivering plastic pollution from a densely populated landscape into coastal marine waters.
Spatial and seasonal abundance and characteristics of microplastics along the Red River to the Gulf of Tonkin, Vietnam
Researchers surveyed microplastic contamination along the entire Red River from Hanoi to the Ba Lat estuary in Vietnam, sampling during both dry and rainy seasons. They found microplastics in all water and sediment samples, with fibers being the dominant shape and polyethylene, polypropylene, and PET the most common polymers. Microplastic levels were generally higher in sediment during the dry season, suggesting seasonal hydrology plays an important role in how plastics accumulate in river systems.
Microplastic and microcystin in tropical drinking water reservoir: pollution characteristics and human health risk assessment
Researchers surveyed microplastic and cyanobacterial toxin levels in a tropical drinking water reservoir in Vietnam over a one-year period. They found microplastics at all sampling sites, predominantly polypropylene and polyethylene fibers, with high polymer hazard scores despite low overall pollution levels. The co-occurrence of microplastics and microcystin toxins across the reservoir highlights the need for research on how these contaminants interact in freshwater drinking water sources.