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Kandungan Mikroplastik Pada Kolom Air di Sungai Siak Provinsi Riau
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Researchers investigated the type, abundance, and depth distribution of microplastics in the water column of the Siak River in Riau Province, Indonesia, sampling at three stations across three depths (surface, 5 m, and 10 m) monthly from January to March 2023, identifying fibers, fragments, and films throughout all locations and depths.
Tujuan penelitian ini adalah untuk mengetahui tipe dan kelimpahan mikroplastik serta distribusinya berdasarkan kedalaman. Pelaksanaan survei dilakukan selama 3 bulan di mulai dari bulan Januari hingga Maret 2023 pada 3 stasiun, yaitu: Stasiun 1 (hulu - Desa Karya Indah), Stasiun 2 (tengah - Kelurahan Tebing Tinggi Okura) dan Stasiun 3 (hilir - Desa Tualang sebanuak 3 kali dengan interval sebulan sekali. Pada setiap stasiun, sampel mikroplastik komposit sebanyak 30 L diambil di bagian kiri, tengah dan kanan sungai pada 3 kedalaman air (permukaan, 5m dan 10m) menggunakan water sampler, kemudian disaring menjadi 300 mL dengan jaring plankton no 25. Sampel air tersaring dari tiap lokasi dan kedalaman disaring dengan kertas Whatman dan diberi KOH 10%, kemudian didiamkan selama 14 hari. Tipe mikroplastik diidentifikasi dengan mikroskop binocular dan dihitung kelimpahannya. Dari hasil penelitian diperoleh 3 tipe mikroplastik (fiber, fragmen dan film) pada kedalaman dan semua lokasi sampling. Tipe fiber dan fragmen melimpah pada kedalaman 5 m dan total kelimpahan ketiga mikroplastik terbanyak ditemukan pada Stasiun 3 (hilir sungai). Disimpulkan bahwa kelimpahan total mikroplastik berbeda sangat nyata berdasarkan kedalaman dan lokasi pengambilan sampel.
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Kandungan Mikroplastik pada Air Berdasarkan Kedalaman di Waduk PLTA Koto Panjang, Kabupaten Kampar, Provinsi Riau
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Researchers examined the types and abundance of microplastics at five stations across different depths in the Koto Panjang hydroelectric reservoir in Riau Province, Indonesia, finding fiber, fragment, and film morphologies with film type most dominant. Microplastic abundance was highest at station 5 and varied with depth, indicating spatial heterogeneity in contamination across the reservoir.
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.
The Abundance of Microplastics in Sediment Siak River Pekanbaru City
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Researchers assessed microplastic abundance in sediments of the Siak River, Pekanbaru City, examining the river as a pathway for land-based plastic waste to accumulate in aquatic sediment reservoirs given high water utilization activity along its banks.
Analysis of Abundance and Distribution of Microplastics in Sediments of Sail River, Pekanbaru City, Riau
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Researchers analyzed sediment samples from the Sail River in Pekanbaru, Indonesia, and found microplastic contamination at all sampling stations, with abundance increasing toward downstream areas. Concentrations ranged from 5,335 to 21,374 particles per kilogram of dry sediment, consisting of fragments, fibers, and films. The study suggests that growing urban activities such as housing, shops, and restaurants along the river are contributing to the increasing microplastic pollution.
The abundance of microplastics in Siak tributary sediments in the watershed area, Pekanbaru City, Riau (Case Study Sago River)
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This study quantified microplastics in sediments of the Sago River, a tributary of the Siak River in Indonesia, finding elevated concentrations linked to dense human activities in the catchment. The results highlight tributaries as important entry points for microplastics into larger river systems.
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