Emission Characteristics of Tyre Wear Particles from Light-Duty Vehicles

Tyre wear particle emissions have gained significant attention due to their harmful effects on the environment and human health. However, studies tyre particles generated under chassis dynamometer conditions are still scarce. This study measures instantaneous number concentrations elemental species of in different light-duty vehicle test cycles. The results show that (PN) US06 cycle much higher than those WLTC larger more frequent accelerations decelerations former. High PN observed during high driving speeds with rapid accelerations, while lower low speed acceleration. Furthermore, tread temperature is found be related formation particles. concentration second third cycles similar, indicating once exceeds critical value, tyres become heated a steady state, will not affected by average tyre. A initial can produce cold start phase prolong time required for warm up. In addition, contained mass fraction Zn, which serve as tracer non-exhaust tests vehicles.