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Differences in Microplastic Content in Commercial Salt and Salt at the Semiringkai Coastal Local Center in Kupang City and Kupang Regency
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Researchers compared microplastic content between commercial salt and locally produced salt from the Semiringkai coastal area in Kupang City and Kupang Regency, Indonesia, finding that both sources contained microplastics with average concentrations that were not statistically significantly different from each other.
There is a content of microplastic in commercial salt and local center salt of the semiringkai coast in Kupang City and Kupang Regency with an average that is not significantly different.
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Microplastic contamination in Indonesian consumable salts
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Researchers analyzed both traditionally produced and commercial branded sea salts from Indonesia and found microplastics in all samples tested. Traditionally produced salts contained the highest contamination levels, with up to 3,753 particles per kilogram, though branded salts also contained significant amounts. The study indicates that sea salt is a notable dietary source of microplastic exposure for consumers.
Microplastics footprint in Indonesian edible salt: A comparative study across Western, Central, and Eastern regions
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Researchers surveyed 45 edible salt brands across western, central, and eastern Indonesia and found an average of 222 microplastic particles per kilogram — predominantly fibers under 1 mm — with western regions showing the highest contamination and regional polymer composition varying markedly by location.
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This systematic literature review described the presence, characteristics, sources, and health impacts of microplastics in Indonesian salt products, finding consistent contamination across regions with PP, PE, and PA as dominant polymer types. The main contamination sources were polluted seawater used in salt production and unmanaged plastic waste near coastal evaporation ponds.
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Researchers analyzed microplastic contamination in ten brands of table salt commonly consumed in Padang, Indonesia. The study found microplastic particles in all brands tested, ranging from 30 to 510 particles per kilogram, with fragments being the most common shape, suggesting that salt products represent a meaningful source of dietary microplastic exposure.
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Researchers analyzed microplastic content in marine-origin table salts from Italian and Croatian commercial brands, finding microplastic contamination in all tested products with no macroplastic or mesoplastic particles recovered, and characterizing the size, shape, and polymer types present.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.