We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Study on density, shape, color, and composition of microplastics in sediments at the Han River estuary (Da Nang)
Summary
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.
Plastic pollution is recorded in terrestrial and aquatic ecosystems. Plastic waste exposed to the environment causes many problems for the environment and all forms of life. This study was conducted to evaluate the microplastic pollution in sediments at the Han River estuary (Da Nang). The analysis results at 8 survey locations showed that microplastics appeared in all samples and there was heterogeneity in density at 8 locations, ranging from 348.2÷3567.8 MPs/kg. Microplastic sizes in the range of 50÷150 μm account for the highest proportion with a value of 2531 MPs/kg, followed by sizes > 500; 20÷50; 50÷150, and 300÷500 μm with ratio values of 2034.2; 1292.1; 842.1, and 595.9 MPs/kg, respectively. The fibers and fragment microplastic forms accounted for most sediment samples up to 98.6%, the white color of microplastic recorded an average value of 49.8%, accounting for nearly half of the microplastics total found. FTIR spectrum shows that PET (Polyethylene Terephthalate) polymer has the highest density with 38.7%; followed by Polyester 25.1%; Nylon 12.9%; Polypropylene 5.4%; remaining polymers such as PVC (polyvinylchloride), PS (polystyrene), PE (Polyethylene), HDPE (High Density Polyethylene), etc. account for a fairly low proportion ranging from 0.7÷2.7%. This source of microplastic pollution is closely related to civil and service activities on both sides of the river. Therefore, in addition to changing environmental management measures, it is nessesary to research to understand the mechanisms that affect the transport, deposition, and interactions of microplastics with organisms living in this sediment environment.
Sign in to start a discussion.
More Papers Like This
Analyze and Compare the Microplastic Pollution in the Water Samples at Han River Estuary (Da Nang)
Researchers analyzed and compared microplastic abundance, shape, color, size, and polymer type in surface water and water column samples from sixteen sites at the Han River estuary in Da Nang, Vietnam during the 2023 rainy season, finding microplastics present in nearly all samples with higher densities in water column samples.
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.
Assessment of ecological risk from microplastic pollution in sediments: A case study in Han river estuary (Vietnam)
Researchers analyzed sediment samples from the Han River estuary in Vietnam across two seasons, finding microplastic concentrations nearly three times higher during the rainy season (7,295 particles/kg) than the dry season. Polyethylene terephthalate (PET) — the plastic used in water bottles — was the most common polymer detected, with seasonal flooding likely flushing plastic waste from land into the estuary.
New Data on Microplastics in the Surface Waters and Sediments of the Day River Estuary, Vietnam
Researchers collected surface water and sediment samples from the Day River estuary in Vietnam to characterise microplastic density, size, colour, and distribution. They found average concentrations of 564 microplastics/m3 in surface water and 3,636 microplastics/kg in sediments, with particles in the 300-1,000 µm size range predominating and eight colour categories identified, confirming the estuary as heavily microplastic-polluted.
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.