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Analisis Mikroplastik Pada Air Dan Sedimen Di Pulaupasaran Menggunakan Ft-ir
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Researchers analyzed microplastic contamination in water and sediments at Pasaran Island, Indonesia, using FT-IR spectroscopy to identify six polymer types (PA, PE, PP, PVC, PS, PTFE) across four sampling stations, with fiber shapes dominating and contamination attributed to local community activities and ocean currents.
Sampah di laut menjadi salah satu sumber pencemaran laut dan menyebabkan berbagai dampak ekologis. Salah satu sampah laut yang paling mendominasi di lautan adalah plastik. Sampah plastik yang terbuang di alam, seiring berjalannya waktu akan mengalami fragmentasi menjadi mikroplastik. Penelitian ini bertujuan untuk menganalisis jumlah partikel, bentuk dan jenis polimer mikroplastik yang terdapat pada air dan sedimen di Pulau Pasaran. Lokasi penelitian dilakukan sebanyak empat stasiun, yaitu Stasiun I, Stasiun II, Stasiun III dan Stasiun IV. Analisis mikroplastik pada sampel air laut dilakukan dengan menambahkan larutan Etanol 70%, H2O2 30% dan NaCl 30% dan pada sampel sedimen dilakukan dengan menambahkan larutan FeSO4 (0,05 M), NaCl dan H2O2 30%. Jumlah partikel dan bentuk mikroplastik dianalisis menggunakan mikroskop digital portable G1200X 12MP sedangkan untuk analisis polimer mikroplastik menggunakan FT-IR. Bentuk mikroplastik yang ditemukan yaitu Fiber, Fragmen, Film, dan Pellet. Jumlah partikel mikroplastik yang paling tinggi yaitu jenis Fiber dan yang paling rendah yaitu jenis Pellet. Jenis polimer yang ditemukan pada air dan sedimen di Pulau Pasaran yaitu Poliamida (PA), Polietilen (PE), Polipropilenii (PP), Polyvinil Chloride (PVC), Polyestyrened (PS) dan Polytetraflouoroetilena (PTPE). Mikroplastik diketahui bersumber dari adanya penggunaan plastik yang berasal dari aktivitas masyarakat dan berasal dari arus laut Pulau Pasaran.Kata kunci: mikroplastik, air laut, sedimen, FT-IR
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Analysis of Microplastic at Sea Water and Sediment in the Pasaran Island Bay Using FT-IR
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Researchers analysed microplastic particle counts, morphologies, and polymer types in seawater and sediment samples collected from four stations around Pasaran Island Bay using FT-IR spectroscopy. Extraction protocols used 70% ethanol, hydrogen peroxide, and sodium chloride for seawater samples and FeSO4, NaCl, and H2O2 for sediments, characterising the nature and extent of microplastic pollution at this Indonesian marine site.
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Researchers characterized microplastic abundance and morphology in coastal sediments of Bandar Lampung City, Indonesia, finding an average of 1,180 particles/kg across three stations, with pellets, fragments, foam, films, and fibers present, and FT-IR analysis confirming diverse polymer types in particles predominantly smaller than 1 mm.
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