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The Distribution of Microplastic in Sediment at Khuan Khi Sian Wetland, Southern Thailand
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Researchers measured microplastic accumulation in sediment cores from a wetland in southern Thailand across two seasons, finding higher concentrations in the dry season. Wetlands are important ecosystems that can act as sinks for microplastics, concentrating them in sediments where they affect bottom-dwelling organisms.
Studies around the world show that there is an increasing accumulation of microplastic pollution in the sediment. This study concerned the accumulation of microplastics in wetlands (Khuan Khi Sian, southern Thailand) sediment cores that are important to the ecosystem. The results showed significant differences in microplastic accumulation in wetlands in two seasons (p < 0.05), with more microplastic accumulation found in the wet season compared to the dry season. 'Filament' is found to be the most abundant microplastic shape and '500 m -1 mm' was the most common size among microplastic in wet and dry seasons. Polymer composition analysis with FTIR with dry season microplastics found five types of polymers, with 'polyester' being the most common. Meanwhile, during the wet season, seven types of polymers were recorded, with 'PET' being the most common polymer.
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Spatial and seasonal distribution of microplastic in surface water of Bueng Boraphet Wetland—a Ramsar wetland in Thailand
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Microplastics were measured in surface water of Bueng Boraphet Wetland, a Ramsar-listed freshwater site in Thailand, during wet and dry seasons across community, agricultural, and natural conservation zones. Microplastics were detected in all zones and seasons, with higher abundances during the dry season and in areas with greater human activity.
Spatiotemporal abundances and potential risks of microplastics in surface sediments of the inner Gulf of Thailand
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Researchers mapped microplastic distribution across the inner Gulf of Thailand across wet and dry seasons, finding threefold higher abundances in the dry season, PET as the dominant polymer, and a striking disconnect between a low pollution load index and a serious ecological risk index driven by polymer-specific hazard scores rather than raw particle counts.
Seasonal microplastic variations in estuarine sediments from urban canal on the west coast of Thailand: A case study in Phuket province
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Researchers investigated seasonal variations in microplastic contamination in estuarine sediments from an urban canal in Phuket, Thailand. They found microplastic abundance was higher in the dry season than the rainy season, with rayon and polyester being the most common polymer types, suggesting that seasonal hydrological patterns and human activities both influence microplastic distribution in urban estuaries.
Influence of seasonal variations on the distribution characteristics of microplastics in the surface water of the Inner Gulf of Thailand
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Researchers sampled surface water across 70-74 sites in the Inner Gulf of Thailand in both dry and wet seasons, finding microplastic concentrations 4 times higher in the wet season (34.59 pieces/L) than the dry season (8.70 pieces/L). River discharge was identified as the key driver of microplastic input to the coastal sea, and polypropylene and polyethylene were the dominant polymers.
Seasonal effects, spatial distribution, and possible sources of microplastics in the Chao Phraya River estuary, Thailand
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This study tracked microplastic abundance and distribution in the Chao Phraya River estuary in Thailand across dry and wet seasons. Plastic levels varied significantly by season and location, with the estuary serving as a key pathway for plastic debris entering the marine environment.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.