ArticleEnvironmental science. Processes & impacts2026
Evidence for extender oils in thermally generated tyre nanoparticles.
Article in Environmental science. Processes & impacts, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Tyre-derived nanoparticles are an increasingly acknowledged component of road traffic emissions due to their potential health impacts. Although nanoparticle formation from tyres has frequently been attributed to evaporation-condensation processes, the chemical identity of the vapour-phase precursors remains unknown. In this work, we combined controlled thermal generation, solvent extraction, and nuclear magnetic resonance (NMR) spectroscopy to investigate thermally generated tyre nanoparticles. Cryomilled passenger car tyre tread was heated in a tube furnace, isolating thermal effects in the absence of mechanical abrasion. A clear onset of nanoparticle formation was observed above approximately 110 °C to 130 °C. Extracting the tyre tread with chloroform reduced cumulative nanoparticle emissions at 200 °C by 99% and 70% for two different tyre samples, indicating that nanoparticle formation at this temperature is dominated by solvent-accessible tyre constituents rather than the cross-linked rubber matrix.
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