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The Distribution of Microplastic in Sediment at Khuan Khi Sian Wetland, Southern Thailand
Summary
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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