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Identifikasi Jenis Dan Kelimpahan Mikroplastik Pada Sedimen Di Muara Sembilang Kecamatan Samboja Kabupaten Kutai Kartanegara Kalimantan Timur
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Researchers identified and quantified microplastics in sediments from Muara Sembilang estuary in East Kalimantan, Indonesia, finding a total abundance of 1,613 particles/kg with fragments dominating at 41%, followed by films and fibers, with no statistically significant difference in abundance among morphotype categories.
Sampah plastik adalah salah satu pencemar yang memberikan dampak negatif terhadap perairan. Sampah plastik dapat memasuki sistem perairan dalam bentuk partikel kecil yang disebut mikroplastik. Tujuan penelitian ini adalah mengidentifikasi jenis dan kelimpahan mikroplastik pada sedimen di perairan Muara Sembilang. Preparasi sampel sedimen dilakukan di Laboratorium Kualitas Air Fakultas Perikanan dan Ilmu Kelautan. Sampel sedimen diambil menggunakan Ekman Grab dengan metode purposive sampling pada 5 stasiun pengamatan dengan 4 kali pengulangan. Uji statistik terhadap data kelimpahan menggunakan Kruskal Wallis. Jenis mikroplastik yang teridentifikasi meliputi fragmen, film, dan fiber. Jenis mikroplastik yang mendominasi yaitu fragmen dengan komposisi sebesar 41%. Kelimpahan total mikroplastik yang ditemukan pada sedimen adalah 1613 partikel/kg. Tidak terdapat perbedaan yang signifikan antara kelimpahan jenis fragmen, fiber, dan film dengan nilai Sig 𝜌 (0,371) > Sig 𝛼 (0,05).
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Jenis Dan Kelimpahan Mikroplastik Pada Air Laut Di Muara Sembilang Kecamatan Samboja Provinsi Kalimantan Timur
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Researchers sampled seawater at Muara Sembilang estuary in East Kalimantan, Indonesia, identifying microplastic abundances of 265 particles/L at high tide and 250 particles/L at low tide, with fibers, fragments, and film all present and statistically significant differences in abundance between particle types.
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Researchers measured microplastic abundance and composition in coastal sediments at Monpera Beach in Balikpapan, East Kalimantan, finding film was the dominant type at 62% of total particles (54,140 particles/kg/m²), followed by fiber and fragment, with statistically significant differences in abundance between fragment and film types.
Kajian Kelimpahan Mikroplastik Pada Sedimen Pantai Kecamatan Sangatta Utara Kabupaten Kutai Timur
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This study measures the abundance and distribution of microplastics in beach sediment samples, characterizing particle types, sizes, and polymer compositions found at coastal sites. Spatial variation in microplastic load is analyzed in relation to local sources such as tourism, fishing activity, and inland runoff. Results add to regional baseline data on coastal microplastic pollution and inform monitoring and cleanup priorities.
Jenis Dan Kelimpahan Mikroplastik Pada Sedimen Pesisir Pantai Manggar Kota Balikpapan Kalimantan Timur
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Researchers characterized microplastic types and abundance in coastal sediments at Manggar Beach, Balikpapan, East Kalimantan, using NaCl density separation and H2O2/FeSO4 digestion followed by microscopy. Fibers were most abundant (63%), followed by fragments (32%) and films (20%), with significant differences in abundance between particle types.
Identifikasi Jenis dan Kelimpahan Mikroplastik pada Sedimen di Danau Buatan Bandar Kayangan Lembah Sari Kecamatan Rumbai Pesisir Kota Pekanbaru
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Researchers identified and quantified microplastics in sediments from an artificial lake in Pekanbaru, Indonesia, finding three morphotypes — fragments (37%), fibers (33%), and films (30%) — with abundances ranging from 358 to 440 particles per kg across sampling stations.
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