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61,005 resultsShowing papers similar to Assessment of microplastic abundance and characteristics in the coastal water of Hai Phong, Vietnam
ClearAnthropogenic particle abundance and characteristics in seawater and intertidal sediments of the Tonkin Bay Coast (North Vietnam)
Researchers measured microplastic contamination in seawater and intertidal sediments at four sites along the northern Vietnam coast, finding fiber particles as the dominant type in both compartments. Higher microplastic levels were recorded during the rainy season, suggesting rivers are a primary transport route carrying plastic from inland sources to the sea. The study provides rare baseline data for a developing-country coastal zone and emphasizes that even smaller polymer fragments below the measured size range likely represent a significant unquantified hazard.
Characteristics of microplastics in shoreline sediments from a tropical and urbanized beach (Da Nang, Vietnam)
Microplastic characterization of shoreline sediments at Da Nang beach, Vietnam found an average of 9,238 ± 2,097 items/kg, with synthetic fibers accounting for 99.2% of particles — predominantly blue and white — concentrated in the 0–5 cm surface layer and smaller than 500 µm.
Assessment of microplastic presence in coastal environments and organisms of Da Nang, Vietnam
Researchers assessed microplastic contamination in seawater, sediments, and marine organisms along the coast of Da Nang, Vietnam. The study found microplastics in all sampled environments, with fibers being the most common shape and nylon the most prevalent polymer type. Benthic organisms like oysters and mussels contained significantly higher microplastic concentrations than fish, suggesting that habitat and feeding behavior influence uptake.
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.
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 in Sediment at Danang Beaches - Vietnam
Researchers characterised microplastics in beach sediments at Danang, Vietnam, determining their abundance, morphology, colour, and polymer composition. The study found microplastic contamination at all sampled sites, identifying fibres and fragments as dominant forms and linking plastic sources to local tourism, fishing, and urban runoff.
Contamination of microplastics in mangrove sediment cores from Lach Huyen area, Hai Phong city, Vietnam
Microplastic concentrations in sediment cores from mangrove forests near a major Vietnamese port averaged over 1,300 particles per kilogram — substantially higher than comparable regions globally — with fibres comprising 80% of particles and concentrations decreasing with sediment depth, suggesting recent intensification of pollution. Mangrove sediments act as long-term plastic sinks, and the high fibre burden raises concern for the benthic organisms and communities that depend on these critical coastal ecosystems.
Microplastic pollution in coastal surface seawater of Southern Vietnam
Microplastics were detected in all 45 surface seawater samples from three Southern Vietnam coastal regions in April 2019, with estuarial sites showing the highest abundance (up to 0.56 pieces/m³ in Tien Giang) and polypropylene, polyethylene, and fragments predominating.
Microplastic abundance and characteristics in seawater and inter-tidal sediments of the Tokin Bay Coast (North Vietnam)
This study characterized microplastic abundance and properties in seawater and intertidal sediments along the northern coast of Vietnam, providing some of the first systematic microplastic data for this developing country. The results document significant contamination in abiotic marine compartments of a rapidly industrializing coastal region.
Estimation of Laundry-derived Microfiber Discharges into Wastewater: A Case Study in Hanoi City
Researchers analyzed 30 household laundry wastewater samples from Hanoi, Vietnam, finding extremely high microplastic concentrations averaging 96,296 particles per cubic meter, with fibers making up 99.6% of all particles and 12 polymer types identified.
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.
Study on density, shape, color, and composition of microplastics in sediments at the Han River estuary (Da Nang)
Researchers analyzed microplastic density, shape, color, and polymer composition in sediments at eight sites along the Han River estuary in Da Nang, Vietnam, finding concentrations ranging from 348.2 to 3,567.8 MPs/kg. PET was the dominant polymer (38.7%), followed by polyester and nylon, with fibers and fragments together accounting for 98.6% of particles found.
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.
Plastic waste in sandy beaches and surface water in Thanh Hoa, Vietnam: abundance, characterization, and sources
Plastic waste surveys on three major beaches in Thanh Hoa, Vietnam documented abundant marine debris including microplastics, with quantities reflecting nearby anthropogenic activities and waste management gaps. The findings provide a baseline for coastal management and pollution control in the region.
Microplastic abundance and characteristics in bivalves from Tam Giang-Cau Hai and O Loan Lagoons, coastal regions in Central Vietnam: Implication on human health
Researchers found microplastics in four types of commonly eaten shellfish from coastal lagoons in Central Vietnam, with an average of 0.3 to 0.9 particles per gram of tissue. Fibers were the most common shape, and the estimated weekly human intake from eating these shellfish ranged from about 56 to 486 particles. The study highlights that regular seafood consumption in coastal communities provides a direct route for microplastic exposure in the human diet.
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.
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.
Microplastic accumulation in bivalves collected from different coastal areas of Vietnam and an assessment of potential risks
Researchers analyzed microplastic accumulation in five common bivalve species collected from aquaculture areas along the coast of Vietnam, finding microplastics in all samples with an average of about 10.84 items per individual. Fibers were the most common shape, concentrated in gills and digestive glands, and a risk assessment suggested potential implications for human health through seafood consumption.
Baseline concentration of microplastics in surface water and sediment of the northern branches of the Mekong River Delta, Vietnam
Researchers measured baseline microplastic concentrations in surface water and sediment along the Tien River and its distributaries in Vietnam's Mekong River Delta. They found microplastic fibers were the dominant type, comprising 85% of particles in surface water and 98% in sediment. The study indicates that while surface water concentrations remained stable along the main flow, sediment microplastic levels were influenced more by river flow dynamics than by proximity to pollution sources.
Risk assessment of microplastic exposure: A case study near a refinery factory at the central coast of Vietnam
Researchers assessed microplastic contamination on a beach near a refinery on the central coast of Vietnam and found plastic particles in all collected samples, averaging about 1,582 particles per kilogram of sediment. Fibers and fragments were the dominant shapes, with polyethylene terephthalate being the most common polymer type. The study indicates that industrial coastal areas face elevated microplastic pollution levels that may pose environmental and health risks.
Microplastics in the surface seawater of Bandon Bay, Gulf of Thailand
Researchers surveyed microplastics in surface seawater of Bandon Bay, Thailand, finding the highest concentrations near fishery and aquaculture areas, with fragments as the dominant form and polyethylene and polypropylene as the most common polymer types.
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.
Preliminary results on microplastics in surface water from the downstream of the Day River
Preliminary data from the Day River in Vietnam detected microplastics at concentrations ranging from 0.06 to 5.6 items per liter in surface water, with fibers as the dominant type and higher concentrations near populated areas, establishing a baseline for further monitoring in Southeast Asian river systems.
Microplastics distribution in surface sediment during dry season at Can Gio beach, Ho Chi Minh City, Vietnam
Researchers determined the abundance, shape, and distribution of microplastics in surface sediments at Can Gio Beach, Ho Chi Minh City, Vietnam, collecting samples along transects both perpendicular and parallel to the shoreline during April 2023. They found an average microplastic abundance of 6.28 items per gram, with abundance increasing toward the shore and reaching a peak of 17.9 items per gram at the highest tidal zone.