气态污染物长期平均浓度计算方法初探

Sturdies on Method of Calculating Long-Term Average Concentration of Gaseous Pollution

本文以Gauss模式为基础扩散模式 ,充分考虑了兰州市区的气象条件、地形和风场特征 ,建立了一个能够应用于长期平均浓度预测的扩散模型。并利用 98年的污染源资料和气象资料 ,对SO2 和NOX的长期平均浓度分布进行了模拟计算 ,与同期监测值相比效果较好 ,该模式能够较好的反映兰州市区的空气质量状况 ,对其他城市的长期浓度预测也有一定的借鉴作用。

This research built a dispersion model applied for long-term average concentration forecast, The model was based on Gauss and counted well on characteristic of meteorology,terrain and windy field and SO 2, NO X distribution were calculated by the model with input of the pollution sources and meteorological data. Compared with the simultaneous monitoring values. the results were good. It showed that the model could reflect the air quality in lanzhou and was help for other cities.