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Microplastic: A particulate matter(PM) generated by deterioration of building materials
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Researchers identified that deteriorating building materials — including paints, sealants, and coatings — generate microplastic particulate matter as fine indoor dust, with particle concentration and polymer composition varying by material type and degree of degradation.
Particulate matter (PM), an inhalable material, is generated from various sources, including building materials. To maintain indoor air quality, it is necessary to analyze harmful substances and establish a method for their remediation. The purpose of this study is to identify the particles generated during the deterioration of building materials and analyze the composition of fine dust particles with respect to the degree of deterioration. The concentration of particles generated was analyzed using an SPS30 PM sensor in the built chamber. PM10 and PM2.5 levels of the maximum of 41.95 mg/m and 20.63 mg/m, respectively, were generated from the tested building materials. The components of the collected PM were carbon, hydrogen, and silicon, among others, which are high-molecular-weight compounds. Particles of size 2.5 µm or less were detected, and the possibility of generating nanoplastics was investigated.
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This study assessed indoor microplastic exposure levels across different building types and usage patterns, finding that building composition materials and occupancy behavior significantly affect airborne MP concentrations and thus human inhalation exposure in built environments.
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Researchers exposed common indoor building materials to UV light and found that the materials gradually degraded, releasing microplastic particles into the indoor environment. Wallpapers and plastic sheets showed the highest potential for microplastic generation and posed elevated health risk scores from ingestion, inhalation, and skin contact. Since people spend most of their time indoors, these findings suggest that building materials are an overlooked source of daily microplastic exposure.
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This study explores microplastics as an emerging indoor air and surface pollutant, examining the diverse sources that contribute to microplastic presence within indoor environments and characterizing the pathways by which people may be exposed.
Microplastics Originating from Paints and Synthetic Textile Materials
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Researchers reviewed how paints and synthetic textiles are major but often overlooked sources of microplastic pollution, releasing particles through weathering, washing, and wear. As global demand for these products grows, so does their contribution to environmental microplastic contamination.
Morphological and Chemical Analysis of Indoor Airborne Microplastics: Implications for Human Health in Ahvaz, Iran
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Researchers collected indoor airborne microplastics and performed detailed morphological and chemical characterization, assessing the particle types, polymer identities, and surface properties of what people inhale in enclosed spaces. The study found a diverse mixture of synthetic fiber fragments and plastic particles in indoor air.
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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.