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Analisis Keberadaan Mikroplastik Pada Air dan Sedimen Di Danau Limboto
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Researchers investigated the type and abundance of microplastics in water and sediment samples from four stations in Lake Limboto, Indonesia, using binocular microscopy and FT-IR spectroscopy. They identified three morphological types -- fiber, film, and fragment -- and two polymer types, polyvinyl chloride and polyamide, with a total microplastic abundance of 940 particles per cubic meter in water samples.
This study aims to identify the type and abundance of microplastics in water and sediment in Lake Limboto. Sampling was conducted at four points using purposive sampling method. Analysis of the type and abundance of microplastics was carried out with a binocular microscope (4×10 magnification) and FT-IR spectroscopy. The results showed the presence of three types of microplastics based on shape, namely fiber, film, and fragment, as well as two types of polymers, namely polyvinyl chloride and polyamide. The total abundance of microplastics in water samples was 940 particles/m³, with the highest abundance at point 2 (290 particles/m³) and the lowest at point 1 (170 particles/m³). In sediment samples, the total abundance of microplastics was 2400 particles/kg, with the highest abundance at point 2 (660 particles/kg) and the lowest at point 1 (540 particles/kg). These results show significant distribution and variation of microplastic abundance in Lake Limboto.
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Microplastic Contamination in Water and Sediment at Maninjau Lake, Indonesia
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Researchers quantified microplastic contamination in surface water and sediment across 10 locations in Maninjau Lake, Indonesia, finding abundances ranging from 65.63 to 195.31 particles/m3 in water and 199.52 to 7,000 particles/kg dry weight in sediment. Fiber, film, fragment, and granule shapes were identified, highlighting contamination risks to a lake critical for water supply, hydroelectric energy, and aquaculture.
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Researchers collected and characterized 890 microplastic particles from surface water at three sites in Laguna de Bay, the largest lake in the Philippines, using visual microscopy and FTIR analysis. Fibres dominated the samples, photodegradation was evident from colour changes, and polyethylene was the most common polymer type identified.
Microplastic Pollution in Waters and Sediments in a Lentic System: A Case Study in a Tropical Wet Urban Lake of Samarinda, Indonesia
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Researchers sampled water and sediment from a tropical urban lake in Samarinda, Indonesia, finding microplastic contamination at all 10 sampling sites with an average of 0.91 particles per litre in water and 375 particles per kilogram in sediment. Fibres — likely from textiles — dominated in both water and sediment, and polyethylene was the most common polymer identified. The study highlights how urban lakes in rapidly developing tropical cities are becoming significant repositories of microplastic pollution, driven by inadequate waste management infrastructure.
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Researchers investigated microplastic characteristics at Pulau Tengah in the Karimunjawa waters of Indonesia, sampling at four stations using plankton nets and analyzing particle abundance, morphology under stereo microscopy, and polymer type via FTIR spectroscopy to characterize contamination in this tropical marine environment.
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