This study presented the distribution and dispersion characteristics of vehicular pollutant within a given street canyon, and the results of this work can provide the basis for the environmental control of street canyon.

• 研究工作给出了特定街道峡谷内的机动车排气污染物的分布特征及扩散规律，可以为城市街道峡谷的环境控制提供依据。