Vertical Distribution of Microplastic Along the Main Gate of Indonesian Throughflow Pathways

Microplastics in Urban Environments: Sources, Pathways, and Distribution

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Researchers mapped the major sources and pathways of microplastic pollution in cities, finding that tire wear, laundry wastewater, landfills, and construction activity collectively make urban areas major generators of the microplastics that flow into surrounding air, water, and soil.

Migration, Distribution and Influencing Factors of Microplastics at the Confluence of Pipe and Channel

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Laboratory experiments on pipe-channel confluences showed that microplastic migration and deposition are strongly governed by flow velocity and particle size, with MPs accumulating in low-velocity scour holes and aged, more hydrophilic particles migrating further downstream. This hydrodynamic insight is essential for designing effective interception strategies at wastewater infrastructure junctions before MPs reach open waterways and ultimately the food chain.

The transport and vertical distribution of microplastics in the Mekong River, SE Asia

Transport of Traffic-Related Microplastic Particles in Receiving Water

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Traffic-generated microplastic particles, primarily from tire wear and road markings, are transported via stormwater runoff into urban waterways and ultimately marine environments, making roads a significant but underappreciated land-based source of ocean microplastic pollution. Quantifying this transport pathway is essential for developing effective urban stormwater management strategies to reduce microplastic loads in receiving waters.

Abundance and Characteristics of Microplastics in Urban Drainage Canals of Dhaka City, Bangladesh

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Researchers assessed microplastic contamination in urban drainage canals in Dhaka, Bangladesh, finding significant accumulation that turns these waterways into conduits transporting microplastics into riverine and marine ecosystems, posing risks to aquatic life and human health in one of the world's most densely populated cities.