Estimation of Air Pollutant Emission from Vehicles in Beijing-Harbin Highway

摘要

Based on the traffic volume data and vehicular emission factors, the emission amount of CO, HC and NO_x from vehicle exhaust in Beijing-Harbin highway in total and in different provinces was quantitatively analyzed in this paper. The results showed that the emission amount of CO, HC and NO_x was 745.57 t, 90.72 t and 226.40 t each day, respectively. The majority of pollutant emission occurred in Liaoning province, where CO, HC and NO_x emission was 302.87 t, 37.64 t and 107.28 t each day, respectively. The smallest emission of CO and HC was in Heilongjiang province, and the amount of which was 21.46 t and 2.67 t each day, respectively. The smallest emission of NO_x occurred in Beijing, and the amount of which was 5.43 t each day. As for the vehicle category, most CO and HC emission was from small size vehicles, then large size vehicles and medium size vehicles occupied the smallest proportion. Most NO_x emission was from large size vehicles, and then small size vehicles and medium size vehicles occupied the smallest proportion.