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The Occurrence and Distribution of Microplastic in Sediment of the Coastal Waters of Bengkalis Island Riau Province
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This study documented the occurrence and distribution of microplastics in coastal sediments in Indonesia, finding particles widely distributed across sampling sites with varying concentrations by location. The results add to growing evidence of microplastic contamination in Southeast Asian coastal environments.
Abstract The presence of microplastics, which was defined as small pieces of plastic less than 5 mm in size, in the aquatic environment has become a global concern these days. Once in the aquatic environment, microplastics might float in the water column or sink to the bottom sediment, depending on the particle density. This study was conducted in the coastal waters of Bengkalis Island in early 2020 with the aim to determine the occurrence and distribution of microplastics in sediment from six stations with suspected different sources of pollutant input. Sediment samples were taken using the PVC pipe at the depth of 0-10 cm, brought back to laboratory, observed the types and calculated their abundance. The results of the study showed that the highest abundance of microplastics was found at station 6 (83.33 and 26.67 particles/kg for fiber and film) and the lowest abundance was at stations 2 (30.00 particles/kg for fiber) and station 3 (10.00 particles/kg for films). The abundance of fiber type between stations was significantly different (p<0.05), but not for film type (p>0.05). The abundance of microplastics based on colour in each type showed that the highest abundance was in blue colour for fiber and white colour for film type. The abundance of microplastics in the northern part was found to be significantly (p<0.05) higher than in the southern part of Bengkalis Island which was assumed to be due to differences in oceanographic characteristics in both areas such as differences in the type and size of the sediment substrate.
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This Indonesian study assessed the distribution of microplastics in the waters around Bengkalis Island in Riau Province. Microplastics were detected throughout the sampling sites, reflecting plastic pollution patterns common in Indonesian coastal and river-adjacent waters.
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Researchers identified and quantified microplastics in sediment samples from the coastal area around Balikpapan Bay, Indonesia, finding plastic particles present at all stations sampled. The study provides baseline data on microplastic distribution in Indonesian coastal sediments, an important step for understanding contamination in this heavily trafficked maritime region.
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Researchers surveyed the types and abundance of microplastics along the east coast of Karimun Besar Island in Indonesia's Riau Islands Province. High anthropogenic activity in the area was associated with microplastic contamination in coastal waters and sediments.
Analysis of Microplastics on Sediments in the Waters of Selat Panjang of Tebing Tinggi Subdistrict, Meranti Islands Regency, Riau Province
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Researchers surveyed microplastic contamination in sediments in the Selat Panjang waters of Indonesia and found that fragment-shaped microplastics were the most common type, followed by films and fibers. Microplastic abundance varied significantly across the three sampling stations, with the highest concentrations found near a port area.
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