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Assessment of tire wear emission in a road tunnel, using benzothiazoles as tracer in tunnel wash water
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Researchers developed a methodology to quantify tire wear emissions in a road tunnel using benzothiazoles — chemical components of tire rubber — as tracers in tunnel wash water. The approach offers a practical way to estimate how much tire particle pollution, a major source of microplastics, is generated on busy road corridors.
This thesis was performed after recommendations by the Norwegian Public Road Administration in cooperation with the Norwegian institute for Water Research (NIVA), in order to develop a new methodology to quantify tire tread emission in the environment. The physical properties of the tire particle, makes it challenging to detect with existing visual detection methods for microplastics. Benzothiazoles (BTs), organic components in tire tread, has earlier been proposed as tracers for tire wear in road runoff, and was therefore investigated as a possible tracer for tire tread particles (TP) in this study.
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Characterization of tire and road wear microplastic particle contamination in a road tunnel: From surface to release
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Researchers characterized tire and road wear particle distributions across multiple compartments of a road tunnel including road surfaces, gully pots, and wash water, finding the highest concentrations in side bank surface deposits and gully pots at the tunnel inlet. Sedimentation treatment retained only 63% of tire and road wear particles from wash water, highlighting the need for improved treatment to prevent environmental release.
Pollution from Transport: Detection of Tyre Particles in Environmental Samples
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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.
An estimation of tire and road wear particles emissions in surface water based on a conceptual framework
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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.
Quantification of tire tread wear particles in microparticles produced on the road using oleamide as a novel marker
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A novel analytical method using oleamide, a compound incorporated into tire rubber for processing purposes, as a chemical marker was developed and validated to quantify tire tread wear particles in road microparticle samples, offering improved specificity over existing benzothiazole-based approaches for source attribution of tire-derived microplastics.
Tyre wear particles: an abundant yet widely unreported microplastic?
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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.
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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.