上海市区道路地面氮氧化物污染现场调查

为了解城市道路地面NOx污染的状况和特征，对上海典型道路路边NOx污染进行现场实测。结果表明：在交通繁忙的路段，路边NOx污染严重。调查发现：路边NOx的浓度与交通状况有关，车流量越大，车辆阻塞时间越长，NOx的浓度越高；不同类型车辆对路边NOx的贡献不同，大型车和中型车的贡献要比小型车、摩托车和助动车大得多；路边空气污染和影响因素与传统空气监测数据有较大差别。

In situ Investigation on NOx Pollution in the Road of Shanghai Proper

The intention of this paper is to understand the pollution situation and character of NOX along the roadside in Shanghai proper. Concentration of NOX has been monitored in situ. The results were as follow: In the high way of heavy traffic, NOX pollution was very serious, concentration of NOX along the roadside was correlated with vehicle flow, the higher of vehicle flow rate and longer of traffic jam are, the higher of NOX concentration will be. The different vehicles have different emissions, emissions of heavy tractors and median tractors is higher than that of the cars, motocycles, motor bicycles. The character and influence factors of pollution along roadside were differed from the routine air monitoring data.