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Identifikasi Mikroplastik di Muara Sungai Kendal, Kabupaten Kendal
Summary
Researchers identified the types and morphologies of microplastics in the estuary of the Kendal River in Central Java, Indonesia, finding that the river transports microplastics toward the sea and characterizing the polymer types present in the samples.
ABSTRAK: Kajian mengenai mikroplastik pada muara Sungai Kendal, Kabupaten Kendal, Jawa Tengah perlu dilakukan untuk mengetahui jenis polimer dan bentuk dari mikroplastik karena Sungai Kendal berpotensi membawa mikroplastik hingga ke laut. Penelitian mengenai mikroplastik ini terbagi dalam 3 tahap yaitu pengambilan, pengolahan, dan identifikasi. Pengambilan sampel pada permukaan laut menggunakan plankton net 60 µm pada 4 stasiun berbeda. Pengolahan sampel dilakukan dengan 3 tahap yaitu pendegradasian bahan organik, pemisahan densitas, penyaringan. Identifikasi polimer mikroplastik menggunakan FTIR (Fourier Transform Infra Red) dan identifikasi bentuk menggunakan mikroskop stereo. Hasil identifikasi polimer mikroplastik yang terdapat pada muara Sungai Kendal adalah polyethylene dan polypropylene. Bentuk mikroplastik yang didapatkan adalah fragment, film, foam, dan fiber. ABSTRACT: The study of microplastics in Kendal Estuary, Kendal Regency, Central Java, is necessary to know the polymer and shape of microplastics because Kendal River has potential to bring microplastics to ocean. This study contains three steps of processing. The first step is sampling, then sample processing, and identification. Sample of microplastics is taken in surface water using plankton net 60 µm at 4 stations. Sample processing had three steps, first is the degradation of organics matter, density separation, then sample filtration. Polymer identification used FTIR (Fourier Transform Infrared) and shape identification used stereo microscope. The results of polymer identification indicate that is two type of polymer, that is polyethylene and polypropylene. the shape of microplastics is fragment, film, foam, and fiber
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