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Evidence of microplastic presence in the Jagir River and drinking water in Surabaya City, Indonesia
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Researchers tested river water and tap water from a drinking water treatment plant in Surabaya, Indonesia, finding microplastics in both. Raw river water contained about 16 particles per liter, while treated water had about 5.5 particles per liter, mostly tiny fibers made of plastics like polypropylene and polyethylene.
Former research works revealed that microplastics (MPs) had polluted the Jagir River in Surabaya City, Indonesia. This river is utilized as a source for water supply. This study aimed to investigate the presence of MPs in the raw water, treatment plant units, and produced water in the municipal drinking water treatment plant (DWTP) in Jagir. Water samples of 5 L volume was collected by grab method in two replicates. The sampling points were the raw water intake, outlet of each water treatment unit, and reservoir. MP sizes, forms, and colours were identified using a stereomicroscope (Sunshine SZM-45T-B1). The MP polymer types were characterized using FTIR spectrophotometer Nicolet i10. This research resulted in clear evidence of MP contamination in the raw and produced water. The MP abundances in the raw and produced water were 16.1 ± 6.4 and 5.5 ± 0.3 particles/L, respectively. Fiber-formed MPs were dominant during treatment stages (97-100%). The majority of MP particle size was in 351-1000 µm range (55-63%). Transparent particles were the most frequently found in the water (59-83%). Polymer types in the raw water were polypropylene (PP), polyethylene (PE), and polyamide (PA).
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.