摘要
机动车污染是城市大气污染物的重要来源,城市机动车污染排放量模拟对城市街区环境污染状况监测和污染治理都有重要参考价值。目前确定排放因子的方法有底盘测控仪检测、模型计算法、公路隧道法、车载尾气检测系统。文中分析了这些方法的特点和适用条件。国内外也在污染排放模拟方面建立了高斯模型、经验模型、数值模拟模型、箱模型等模型,给出了一个适用于清洁能源的修正模型。排放模型与GIS技术结合后,增加了数据获取的途径、增强了数据分析方法,也使分析过程和计算结果表达得更直观。
Vehicle pollutants are the main source s of urban atmospheric pollution. It is useful to predict pollutant discharge and to simulate pollutant dispersion due to running vehicle.The methodologies to identify emission factors include chassis measuring,model account,highway and tunnel measuring,on board emission measurement.The characteristics and application qualifications of the four methodologies were analysed. There are four classical calculation models,which are Gaussion model, empirical model, numerical simulation model,box model.After integrating of GIS technology and the simulating result, the data gain way is Increased, the data analysis method is strengthened and dynamic display to make the simulation results more visual.
出处
《云南地理环境研究》
2007年第3期60-65,共6页
Yunnan Geographic Environment Research
基金
河南省科技厅攻关项目(0323013100)
河南大学重点研究项目.
关键词
GIS
汽车尾气
排放因子
扩散模型
机动车
GIS
vehicles emission
emission factor
diffusion models
motor vehicle
