Abstract A road simulator was used to generate wear particles from the interaction between two tyre brands and a composite pavement. Particle size distributions were monitored using a scanning mobility particle sizer and an aerosol particle sizer. Continuous measurements of particle mass concentrations were also made. Collection of inhalable particles (PM10) was conducted using a high-volume sampler equipped with quartz filters, which were then analysed for organic and elemental carbon, organic constituents and elemental composition. Tyre fragments chopped into tiny chips were also subjected to detailed organic and elemental speciation. The number concentration was dominated by particles 0.5 μm. The emission factor from wear between pavements and tyres was of the order of 2 mg km−1 veh−1. Organic carbon represented about 10% of the PM10 mass, encompassing multiple aliphatic compounds (n-alkanes, alkenes, hopanes, and steranes), PAHs, thiazols, n-alkanols, polyols, some fragrant compounds, sugars, triterpenoids, sterols, phenolic constituents, phthalate plasticisers and several types of acids, among others. The relationship between airborne particulate organic constituents and organic matter in tyre debris is discussed. The detection of compounds that have been extensively used as biomass burning tracers (e.g. retene, dehydroabietic acid and levoglucosan) in both the shredded tiny tyre chips and the wear particles from the interaction between tyres and pavement puts into question their uniqueness as markers of wood combustion. Trace and major elements accounted for about 5% of the mass of the tyre fragments but represented 15–18% of the PM10 from wear, denoting the contribution of mineral elements from the pavement. Sulphur and zinc were abundant constituents in all samples.

中文翻译：

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路面与轮胎之间磨损产生的非尾气颗粒的理化特性

摘要 道路模拟器用于从两个轮胎品牌和复合路面之间的相互作用中生成磨损颗粒。使用扫描迁移率粒度仪和气溶胶粒度仪监测粒度分布。还进行了粒子质量浓度的连续测量。使用配备石英过滤器的大容量采样器收集可吸入颗粒 (PM10)，然后分析有机和元素碳、有机成分和元素组成。切碎成细小碎片的轮胎碎片也进行了详细的有机和元素形态分析。数量浓度以 0.5 μm 的颗粒为主。路面和轮胎之间磨损的排放因子约为 2 mg km-1 veh-1。有机碳约占 PM10 质量的 10%，包括多种脂肪族化合物（正烷烃、烯烃、藿烷和甾烷）、多环芳烃、噻唑、正烷醇、多元醇、一些芳香化合物、糖、三萜、甾醇、酚类成分、邻苯二甲酸酯增塑剂和几种酸等. 讨论了空气中颗粒有机成分与轮胎碎屑中有机物之间的关系。在细小的轮胎碎片和轮胎与路面相互作用产生的磨损颗粒中检测到已广泛用作生物质燃烧示踪剂的化合物（例如维甲酸、脱氢松香酸和左旋葡聚糖），使其作为木材燃烧标志物的独特性受到质疑. 微量元素和主要元素约占轮胎碎片质量的 5%，但占磨损产生的 PM10 的 15-18%，表示来自路面的矿物元素的贡献。硫和锌是所有样品中的丰富成分。