城郊道路交通污染个例分析

A Case Study on Suburban Transportation Pollution in Shanghai

为建立和研究适合地面道路的宽路幅、高等级、支路多等特点的大城市城郊道路交通大气污染扩散模式,选取了受环境外来源影响较小的上海市沪青平公路的徐泾段,作交通大气污染实测和相关气象因子项目的观测。在获得详细实测结果的基础上,以NOx为例分析了大气稳定度、风向、风速、交通量对城郊地面道路交通污染扩散的影响。

In order to provide a data base for calibration of the lately developed band--source dispersion model for the wide section road system in the Pudong New Area. Shanghai, an on-site transportation pollution survey was conducted on both side of Huqinping Road in the sub- urban of Shnaghai. Meteorological condition, traffic flow and pollution level were measured hourly. Discussion on the effect of atmospheric stability, wind direction, wind speed and traffic flow on pollution dispersion profile were pre- sented. The result indicated that meteorological con- dition and emission rate from vehicles were the most sensitive parameters to the pollution profile of tran- sportation.