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Generation and Distribution Characteristics of Microplastics in Road Dust Sediments in Daejeon Metropolitan City, Korea
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Distribution, Characteristics, and Potential Health Risks of Microplastics in National Coastal Highway Road Dust, Northern Mindanao, Philippines
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Roadside dust sampling in three coastal Philippine cities found microplastic abundances of 180–780 particles/kg, dominated by fragments from consumer product degradation rather than traffic sources, though traffic-related MPs carried the highest individual hazard scores. Road dust is an important understudied vector for microplastics entering coastal waterways and atmospheric transport pathways in densely populated developing-world cities.
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Researchers sampled road dust across Jaipur, India, finding moderate to severe microplastic contamination dominated by polyethylene and polypropylene fibers, with children facing higher exposure risk than adults. Roads act as major microplastic reservoirs, and dust can be inhaled or ingested, making urban road pollution a direct human health threat.
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Researchers compared indoor and outdoor airborne microplastic levels across urban South Korea, finding indoor concentrations were about 1.5 times higher than outdoors and that building ventilation rates directly influenced particle accumulation, suggesting ventilation management as a key exposure-reduction strategy.
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Researchers measured microplastics in roadside dust in both urban and rural areas of Nagpur, India, finding plastic particles in both coarse and fine breathable particulates — meaning people in Indian cities may regularly inhale microplastics simply by being near roads.
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