Kassomenos Pavlos A, Karakitsios Spyros P, Pilidis Georgios A
University of Ioannina, Department of Physics, Laboratory of Meteorology, GR-45110, Ioannina, Greece.
Sci Total Environ. 2005 Jul 15;347(1-3):272-81. doi: 10.1016/j.scitotenv.2004.12.056. Epub 2005 Feb 19.
In this work an approach is presented that describes the changes of benzene concentration in the air, in relation with the special traffic characteristics of a road. The dominant input parameters of the model are traffic density and the vehicle's type distribution according to seven main categories characterized by different emission factors. The dispersion approach used is a semi-empirical relationship that apart from emission rates requires also wind speed and the direction, as well as the geometrical characteristics of the road. The methodology was validated for Ioannina, a Greek medium sized town with special traffic and geographic characteristics presenting high atmospheric pollution values. It is found that the benzene concentrations estimated by the methodology are in a very good agreement with the measurements.
在这项工作中，提出了一种描述空气中苯浓度变化的方法，该方法与道路的特殊交通特征相关。该模型的主要输入参数是交通密度以及根据七个主要类别划分的车辆类型分布，这些类别具有不同的排放因子。所采用的扩散方法是一种半经验关系，除了排放率外，还需要风速、风向以及道路的几何特征。该方法在希腊中等规模城镇约阿尼纳得到了验证，该城镇具有特殊的交通和地理特征，呈现出高大气污染值。结果发现，该方法估算的苯浓度与测量值非常吻合。
