Analysis of Pollutant Exposure of Pedestrian in Urban Street

As an important place of pedestrian activities, the air quality of urban street is closely related to the human health, and the effects of air pollutants on human health have a close contact with the actual level of exposure. According to the concept of exposure, the paper analyzes the process of the exhaust pollutants from vehicles to pedestrians and the influencing factors under the urban traffic environment, and compares the research method of the pollutants exposure at home and abroad. Combined with the distribution characteristics of pollutants concentration and the peak feature of traffic flow in urban street, the paper also discusses the level of pollutant exposure of pedestrian in different time on the basis of the data of pollutant emission in Leeds City.