The Research And Analysis Of The Characteristics Of Vehicle Exhaust Emissions In Nanning

In recent years, with the rapid development of economy and urbanization process, Nanning City, the rapid growth of motor vehicles, as of the end of 2014, the amount of motor vehicles in Nanning reached 1650000, the air pollution is increasingly serious, and various motor vehicles for the entire human environment and human itself caused great harm, how to find out the main pollutant emissions, and to take reasonable and feasible measures to reduce emissions, has become an important task to improve air quality in Nanning city. Motor vehicle emission factors are complex, the emissions are huge, and the emission is very low. The research on the vehicle emission is very important.1 Analysis of the use of motor vehicle exhaust emissions of pollutants, the formation mechanism and common control method. Through the analysis and comparison of the domestic and international standard and test method of vehicle emission pollutants, the gap between China and developed countries is found out.2 Through the research and analysis of Nanning city environmental protection detection station at the present stage of the use of motor vehicle environmental protection testing standards, equipment requirements, testing methods and testing process.3 Combined with the characteristic of Nanning City motor vehicle emission factor and motor vehicle driving status, the COPERT model is used to calculate all kinds of motor vehicle emissions in Nanning City, and the results are analyzed. The calculation results show that the pollutant emissions of motor vehicle in NanningCO is 94689.89t, NOx is 40942.21t, VOC is 32873.7t, PM is 1822.11t.4 Analysis of vehicle emissions in Nanning City, and combined with the current situation of motor vehicle emissions in Nanning City, Nanning City, the main measures to control the air pollution, the different reasons and control methods are summarized, and the different kinds of vehicles to meet the requirements of environmental protection, and ultimately to reduce the emissions of pollutants, and to a certain extent, accelerate the process of improving air quality in Nanning city.