| It is of great significance to study the emission characteristics of urban motor vehicle pollutants for the control of regional environmental quality.Based on the analysis and summary of the general characteristics of vehicle exhaust emissions and their harm,based on the growth of vehicle ownership in Shijiazhuang in recent three years,This paper makes a statistical analysis on the number and category of motor vehicles in Shijiazhuang,and statistics the data of vehicle inspection at different vehicle inspection stations,and gives the influence laws of vehicle types,years and operating conditions on pollutant emission,and adopts the pollution factor method.Source analysis fuel consumption method and traffic flow analysis the change trend of the total amount of vehicle pollutants,and analyze the change of fuel vehicle pollutants with the number of years.At the same time,the linear regression model is used to study the relationship between vehicle pollutant emission and the quantity,and then to predict the pollutant emission in the next few years.The list of motor vehicle pollution sources in different urban areas is given,and the contribution of typical restriction measures to the reduction of main pollutants is predicted.Based on the study of the characteristics of motor vehicle pollution emissions,the problems faced by Shijiazhuang motor vehicle pollution prevention and control are summarized.Combined with the case analysis of motor vehicle pollution prevention and control at home and abroad at present,the existing problems of motor vehicle pollution prevention and control in Shijiazhuang City are analyzed,and the reasonable prevention and control work of motor vehicle exhaust gas in Shijiazhuang is given.To make recommendations. |
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