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Microplastic Distribution Model in Ambient Air PM2.5 Around the Medan Industrial Area, North Sumatra
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Researchers investigated the distribution of microplastics in fine particulate matter around an industrial area in Medan, North Sumatra, finding between 41 and 92 particles per sample. The dominant form was fragments, making up 62% of detected microplastics, and their distribution was influenced by wind direction and nearby pollution sources. The study suggests that industrial areas are significant contributors to airborne microplastic contamination in the surrounding environment.
This research aims to investigate and model the distribution of microplastics in PM2.5-sized air particulates around the Medan industrial area, North Sumatra. Focusing on airborne particles less than 2.5 micrometers in diameter, this research seeks to understand the impact of exposure to microplastics on ambient air quality. The air sampling method was carried out systematically at various strategic points around the industrial area, and laboratory analysis was carried out to detect and identify microplastics. The research results showed that the number of microplastics in PM2.5 in ambient air ranged from 41 – 92 particles with an abundance of 0.41 – 1.40 particles/m 3 . The dominant form of microplastics around the Medan industrial area is fragments, amounting to 62%. The distribution of the number of microplastics and their abundance is marked in red, which is close to the source of pollution, namely industrial areas.
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Researchers measured airborne microplastics in Bandar Lampung City, Indonesia, finding fibrous particles — mostly PET — present at all sampling locations including residential areas and city centers, not just industrial zones. The detection of microplastics in the ambient air at meaningful concentrations adds to the growing body of evidence that people in urban environments are continuously inhaling microplastic fibers, regardless of proximity to obvious industrial sources.
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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.