基于隧道法的机动车PM_(2.5)排放因子研究  

Study on PM_(2.5) Emission Factor of Motor Vehicle Based on Tunnel Method

作　　者：吴中[1] 侯新超 徐辉[1] 张其龙[2] 殷永文[2] 

机构地区：[1]河海大学土木与交通学院,江苏南京210098 [2]淮安市交通运输局,江苏淮安223001

出　　处：《华东交通大学学报》2016年第4期130-135,共6页Journal of East China Jiaotong University

摘　　要：选取典型城市隧道进行机动车排放因子测试,在南京市富贵山隧道进行监测,对隧道内的PM2.5浓度、风速风向、交通量、车型、速度及气象条件进行采集分析、计数、分类、观察。建立守恒方程和多元线性回归求解PM2.5平均排放因子,分别得出出租车（天然气）、小汽车、公交车（天然气）、大客车（柴油）、大货车在35-40 km·h-1,40-45 km·h-1,45-50 km·h-1范围内的平均排放因子;其中最大值为0.157 2 g·（km·辆）-1,最小值为0.015 21 g·（km·辆）-1,在相同速度范围内城市大货车的PM2.5的平均排放因子明显高于其它,其次是大客车（柴油）、公交车（天然气）、小汽车、出租车（天然气）。Selecting typical urban tunnel for vehicle emission factor test, this study selected Rich Mountain Tunnel in Nanjing City to carry out 3D monitoring and data collection of PM2.5concentration in the tunnel, wind speed and direction, traffic volume, vehicles, speed and meteorological conditions, and then made relevant analysis and classification. By establishing conservation equation and multiple linear regression to solve PM2.5average emission factor, it obtained the average emission factors of taxi（natural gas）, car, bus（natural gas）, bus（diesel）,large freight car in the range of 35- 40 km·h-1, 45- 40 km·h-1, 45 - 50 km·h-1. The maximum value was0.157 2 g·km-1 car and the minimum value was 0.015 21 g/km car. It found out that in the same speed range the average emission factor of PM2.5for the large truck was significantly higher than that in other cities, with the large passenger car（diesel）, bus（natural gas）, car, taxi（natural gas） followed.

关 键 词：PM2.5 排放因子 隧道实验 

分 类 号：X513[环境科学与工程—环境工程]