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61,005 resultsShowing papers similar to Road sediment, an underutilized material in environmental science research: A review of perspectives on United States studies with international context
ClearCharacterisation of road-dust sediment in urban systems: a review of a global challenge
This global review of urban road-deposited sediment contamination synthesized data on organic pollutants, metals, and plastic particles from cities worldwide, highlighting the variability in sampling and analytical methods as a major obstacle to risk-based management of roadside pollution.
Tyre wear particles: an abundant yet widely unreported microplastic?
Researchers collected tire wear particles from roadside drains and natural environments near a major UK road, finding that these particles are abundant and widespread yet frequently undetected in environmental monitoring, suggesting tyre wear is a major but under-reported microplastic source.
Tendencias metodológicas en la evaluación del grado de contaminación y de riesgos por metales pesados presentes en sedimentos viales urbanos
This systematic review (in Spanish) analyzes global trends in methods used to assess heavy metal contamination in urban road sediments from 1995 to 2018. While focused on metals rather than microplastics, the study covers assessment frameworks applicable to roadside pollution that can co-occur with plastic tire particles.
Is road pavement wear a source of microplastics in stormwater runoff?
This study investigated whether road pavement wear is a measurable source of microplastics in stormwater runoff, distinct from the better-characterized tire wear contribution. Pavement-derived particles were identified in stormwater samples, confirming that road surface material itself contributes to microplastic loading in urban runoff alongside tire wear and other sources.
Identification, classification and quantification of microplastics in road dust and stormwater
Researchers identified and quantified microplastics in road dust and stormwater, finding significantly higher concentrations in industrial areas compared to residential zones, with tire wear particles and polyethylene fragments being the most common types.
Characterization of Particles in Road Surface Sediments for Analyzing Runoff Behavior of Microplastics
Researchers characterized physical properties — density, shape, and material composition — of particles in road surface sediments and stormwater catchpit deposits in Japan using density-gradient separation, image analysis, and ATR-FTIR, finding that synthetic polymers comprised 40-50% of all particles and were concentrated in high-density fractions with Feret diameters of 500-800 micrometers.
Reply to road markings and microplastics- a critical literature review
Researchers responded to a review that dismissed road markings as a microplastic source, arguing the absence of detections in environmental samples reflects the extreme analytical difficulty of identifying road marking materials — not their actual absence — and calling for more consistent reporting standards across microplastic studies.
Microplastics from tyre and road wear A literature review
This literature review examines microplastics generated from tire and road wear, identifying road traffic as a significant but often overlooked source of plastic pollution in urban runoff and waterways. The authors assess what is known about tire particle composition, environmental fate, and potential ecological effects.
Microplastics in road dust – characteristics, pathways and measures
Researchers reviewed the sources, characteristics, and transport pathways of road dust-associated microplastic particles (RAMP), identifying tyre wear rubber, polymer-modified bitumen, and thermoplastic road marking paints as the main contributors. The study found significant data gaps regarding the fate of RAMP in stormwater runoff and wastewater treatment systems.
Occurrence and characteristics of microplastics in surface road dust in Kusatsu (Japan), Da Nang (Vietnam), and Kathmandu (Nepal)
Microplastics were detected in road dust sampled from three Asian cities (Kusatsu in Japan, Da Nang in Vietnam, and Kathmandu in Nepal), with concentrations and polymer types varying by city and sampling location. The study demonstrates that road surfaces are a major reservoir of microplastics in urban environments across diverse Asian contexts.
Concentrations of tire wear microplastics and other traffic-derived non-exhaust particles in the road environment
Researchers measured actual environmental concentrations of tire wear microplastics and other traffic-derived non-exhaust particles in a rural highway setting, providing field-based data to complement the theoretical estimates that dominate current literature.
Pollution from Transport: Detection of Tyre Particles in Environmental Samples
This study reviews tyre wear particles as a major but underestimated source of microplastic pollution from road transport, describing methods for detecting these particles in environmental samples including road dust, waterways, and soils. The authors call for greater regulatory attention to tyre-derived emissions alongside other transport-related pollutants.
Quantification of microplastic by particle size down to 1.1 μm in surface road dust in an urban city, Japan
Researchers quantified microplastics in urban road dust in Japan down to 1.1 micrometers, revealing that smaller size fractions contained disproportionately higher particle counts and that roads are a significant source of fine microplastic pollution.
Tire and road wear particles contamination in infiltration ponds sediments: occurrence, spatial variability, size distribution and correlation with metals
Researchers examined tire and road wear particle (TRWP) contamination in infiltration pond sediments, characterizing their occurrence, spatial variability, size distribution, and correlation with heavy metals to assess the pollution dynamics of these road-derived particles in urban drainage systems.
An estimation of tire and road wear particles emissions in surface water based on a conceptual framework
Researchers developed a conceptual framework to estimate emissions of tire and road wear particles (TRWPs) into surface water, identifying them as a dominant source of microplastic contamination in freshwater environments globally.
Tyre wear particles and metals in highway roadside ditches: Occurrence and potential transport pathways.
Researchers characterized the occurrence and distribution of tyre wear particles (TWP) and associated metals in roadside soils and drainage ditches along a highway, investigating transport pathways and estimating the potential for TWP and metal contamination to reach surface water.
Microplastics and tyre wear particles infiltration in the soil of a roadside biofiltration swale
Researchers investigated the infiltration of microplastics and tyre wear particles into soil along a roadside biofiltration swale, assessing the extent to which these particles migrate from the road surface into subsurface soils under real-world conditions.
Geoecological analysis of impacts of the use of plastic waste in road construction on the geological environment
This study analyzes the environmental risks of incorporating recycled polymer waste into road construction materials, finding that microplastic particles can migrate into surrounding soil and groundwater and proposing criteria to assess the safety of such practices based on chemical composition and hazard class.
Tire Wear Monitoring Approach for Hotspot Identification in Road Deposited Sediments from a Metropolitan City in Germany
Researchers developed a systematic road-sampling approach to identify urban hotspots for tire-and-road wear particles (TRWP) — a major category of microplastic pollution — by sweeping road-deposited sediments at six inner-city monitoring sites. Curves and traffic-light zones accumulated 8x and 3x more styrene-butadiene rubber (a TRWP marker) than straight road sections, respectively. Since tire wear is one of the largest sources of microplastics entering waterways via road runoff, this hotspot mapping method can inform targeted mitigation measures.
Is road pavement wear a source of microplastics in stormwater runoff?
Researchers investigated whether road pavement wear contributes microplastics to stormwater runoff, testing pavement materials and runoff samples from urban areas. The study found that pavement abrasion does release plastic-associated particles into stormwater, adding to the range of urban microplastic sources.
Tire wear particles concentrations in gully pot sediments
Researchers measured tire wear particle (TWP) concentrations in gully pot sediments, developing analytical methods to quantify this major microplastic source in road runoff as it enters urban drainage systems before reaching the broader environment.
Mitigation of Suspendable Road Dust in a Subpolar, Oceanic Climate
Tire and road wear particles (TRWP), a major source of microplastics in waterways, are especially abundant in cold climates where studded tires are common. This study assessed road dust generation and found that traffic volume and road surface conditions are key drivers of TRWP pollution.
Occurrence and risk associated with urban road-deposited microplastics
Researchers collected and analyzed microplastics deposited on urban roads and found average concentrations ranging from 0.33 to 3.64 grams per square meter, with significant variation based on land use and particle size. Road-deposited microplastics were mainly fibers and fragments from tire wear and textile sources, and their risk assessment indicated moderate ecological concern. The study provides new insights into how different urban environments contribute to microplastic pollution through road runoff.
Microplastics Generated from Recycled Plastic Modified Asphalt Pavement: Method Development and Laboratory Evaluation
This study developed laboratory methods to measure how much microplastic is shed by asphalt pavement made with recycled plastic, filling an important knowledge gap as recycled-plastic roads are promoted as a sustainability solution. The research raises the concern that pavements incorporating waste plastic could become a previously unrecognized source of microplastic pollution over their service life.