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Microplastic pollution in the sediment of Jagir Estuary, Surabaya City, Indonesia
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Microplastics were detected in sediments of the Jagir Estuary in Surabaya, Indonesia, with fragments being the dominant form and polypropylene the most common polymer. The study documents plastic contamination in an Indonesian urban estuary and highlights industrial and urban runoff as likely sources.
This study was aimed to investigate the abundance and characteristics of microplastics (MP) in the sediment of Jagir estuary and Wonorejo coast, Surabaya, Indonesia. Sediment samples from 5 sites in the estuary and the adjacent coast were collected in replicates using Ekman dredge sampler. The MP particles were extracted using density separation method. Then the MP particles were counted and categorized according to shape, size, and color under a Zeiss Discovery V.12 stereomicroscope. Identification was done using Thermo Scientific Nicolet iS10 FTIR Spectrometer. The MP shapes comprised fiber (57%), film (36%), and fragment (7%). Abundance of the MP was highest in the Wonorejo coast sediment (590 particles/kg dry weight). The MP particles consisted of 68% large and 25% small sizes and comprised 56.7% polyester, 24.6% low-density polyethylene, and 18.8% polypropylene. The MP colors were 43% transparent, 21% black, 14% blue, 10% white, 8% red, and 4% yellow.
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Microplastics in Sediments of East Surabaya, Indonesia: Regional Characteristics and Potential Risks
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Microplastic occurrence and distribution were characterized for the first time in sediments from 16 sites along urban and mangrove coastal areas of East Surabaya, Indonesia. Microplastic abundances ranged from undetected to 598 items per kilogram, with higher contamination in urban areas and characteristics reflecting mixed local plastic waste sources.
A novel report on the occurrence of microplastics in Pekalongan River Estuary, Java Island, Indonesia
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Researchers measured microplastic contamination in water and sediments of the Pekalongan River estuary in Indonesia, finding concentrations of 45.2-99.1 particles/L in water and 0.77-1.01 particles/g in sediment. Polystyrene, polyester, and polyamide were the dominant polymers, with fragments and films smaller than 1 mm accounting for the majority.
Characterization of Microplastics in Jakarta’s Urban Downstream and Estuary Water Bodies
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Researchers characterized microplastic contamination in urban water bodies of Jakarta -- specifically Sunter River, Buaran River, and Marunda Estuary -- which serve as conduits for plastic waste to the ocean. Microplastics were abundant in all sampled water bodies, with fiber and fragment morphotypes dominant, reflecting the high density of urban plastic sources in the surrounding catchments.
Abundance and characteristics of microplastics in the northern coastal waters of Surabaya, Indonesia
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Microplastics were characterized in coastal waters off Surabaya, Indonesia, with fibers as the most common shape and polyethylene terephthalate as the dominant polymer, reflecting textile and packaging waste inputs to the region.
Initial investigation of microplastic pollution in river sediments at Yogyakarta City Indonesia
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Researchers conducted an initial investigation of microplastic pollution in river sediments crossing Yogyakarta City in Indonesia, finding microplastics at all sampling sites. Fragment and fiber types dominated, reflecting common plastic pollution sources in this urban environment.
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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.