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Abundance of microplastic in Water Column of Lubuk Siam Lake (Oxbow) Lubuk Siam Village Siak Hulu District Kampar Regency Riau Province
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This study quantified microplastic abundance in the water column of Lubuk Siam Lake, an oxbow lake in Riau Province, Indonesia, through monthly sampling at three points from September to November 2020. Water samples of 100 L were filtered using plankton nets and Whatman filter paper, and microplastic morphotypes were identified under a binocular microscope, with fibers and fragments as the dominant types. The study documents the extent of microplastic contamination in this inland freshwater system and contributes baseline data for Indonesian lacustrine environments.
Microplastics originated from degraded plastic materials that may be flown to water bodies and accidentally swallowed by aquatic organisms. The research aims to understand the microplastics in the water body in the Lubuk Siam lake and was conducted from September to November 2020. Samplings were conducted 3 times, once per month, in 3 sampling points. At each sampling point, 100 L of water was taken and filtered using a plankton net (30 µm mesh size). To obtain the microplastics, the filtered water was again filtered using Whatman filter paper No.42, and the type of microplastics was identified using a binocular microscope. Results show the types of microplastics found in the water namely fibers, films, and fragments. The microplastic density was (10 fibers/m3), (93 films/m3) and (40 fragments/m3) in the water. Data obtained indicate that the most common type of microplastic found in the waters was film.
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