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Characterization of microplastics accumulated in sediments of stormwater detention basins, in relation to the land use patterns in the contributing catchment.
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Microplastics in stormwater detention basin sediments were characterized and linked to surrounding land use, with roads and residential areas contributing the highest concentrations and most diverse plastic types.
International audience
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Contribution of different land use catchments on the microplastic pollution in detention basin sediments
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Researchers measured microplastic pollution in detention basin sediments receiving runoff from catchments with different land uses — residential, commercial, and industrial — finding that industrial catchments contributed the highest microplastic loads. Particle morphology differed by land use type, with industrial sites associated with more fragments and commercial areas with more fibres.
Land Use Pattern Affects Microplastic Concentrations in Stormwater Drains in Urban Catchments in Perth, Western Australia
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Researchers measured microplastic concentrations in stormwater drains across six Perth and Peel catchments with contrasting land uses, finding mean concentrations of 14.2 microplastics per liter with fibrous forms dominant, and demonstrating that catchment land use pattern significantly influences microplastic loading to stormwater systems that transport particles from terrestrial to coastal environments.
Occurrence and Characteristics of Microplastics Pollution in Different Types of Urban Runoff
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Researchers quantified and characterized microplastics in urban surface runoff from different land use types. They found microplastics in all runoff samples, with concentrations and dominant particle types varying by land use, suggesting that road surfaces and commercial areas are significant sources. The study contributes data for urban stormwater management strategies aimed at reducing microplastic loading in receiving waterways.
Microplastic pollution in sediments of urban rainwater drainage system
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Researchers found microplastics in all sediment samples from a university campus rainwater drainage system, with abundances ranging from 80 to 2,610 particles/kg and the highest concentrations in student living areas, suggesting that land use patterns and management practices influence microplastic accumulation in urban stormwater infrastructure.
Characterization of microplastics present in sediments from stormwater retention basins
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This French-language study characterizes microplastics found in the sediments of stormwater retention basins, which collect runoff from urban and agricultural areas. The findings show that these basins accumulate significant microplastic loads, making them potential hotspots of concentrated plastic pollution.
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