九华山和玄武湖隧道机动车尾气污染源解析

Source analysis of vehicle exhaust pollution in Jiuhua Mountain and Xuanwu Lake Tunnel

随着城市快速发展,隧道机动车尾气排放已成为城市地区大气污染治理的关键。本文通过调查分析,发现小型载客汽车是CO和HC的最大贡献源,贡献率分别高达93%和96%。NOx和PM2.5排放主要来自小型载客汽车、中型载客汽车和公交车。同时计算出2017年九华山和玄武湖隧道CO、HC、NOx、PM2.5排放量分别为140.16t/a和211.39t/a、37.81t/a和57.02t/a、14.72t/a和22.20t/a、0.63t/a和0.95t/a,可为玄武湖隧道和九华山隧道口的机动车尾气治理设计及管理提供借鉴。

With the rapid development of the city,the vehicle exhaust in tunnels has become the key control of air pollution in urban areas.through investigation and analysis,it is found that small passenger cars are the largest contributor to CO and HC,with the contribution rates as high as 93% and 96% respectively.at the same time,the emissions of CO,HC,NOx and PM2.5 from Jiuhua Mountain and Xuanwu Lake Tunnel in 2017 are 140.16 t/a and 211.39 t/a,37.81 t/a and 57.02 t/a,14.72 t/a and 22.20 t/a,0.63 t/a and 0.95 t/a respectively,it provides reference for the design and management of vehicle exhaust.