Management of haze weather

Due to the rapid growth of motor vehicles in cities in my country, urban air pollution is changing from coal smoke pollution to mixed pollution of coal smoke and motor vehicles. Some large and medium-sized cities frequently experience haze weather. Motor vehicle pollution causes frequent haze weather in large and medium-sized cities.

The quality of oil used by my country’s motor vehicles is low and the emission level is not high. Motor vehicles have become an important source of pollution in large and medium-sized cities, which directly leads to an increase in urban haze weather and an increase in cities polluted by vehicle exhaust gas.

The so-called haze weather refers to the large amount of nitrogen oxides and particulate matter in the air, resulting in low visibility. Under unfavorable meteorological conditions, regional haze weather occurs frequently in our country. The haze weather is directly related to the fact that the sulfur content in my country's vehicle fuel is much higher than that in developed countries in Europe and the United States. According to statistical data analysis, the emission level of newly produced motor vehicles in my country is currently more than 8 years behind that of developed countries in Europe and the United States. The emission of hydroxide and nitrogen oxide from cars is 3.5 times that in the United States and 2.5 times that in the United States. The emission standards for agricultural vehicles are at least More than 20 years behind Europe.

In 2005, motor vehicle pollutant emissions have become an important source of pollution in many cities in northern and southern my country. Since 2006, my country's urban particulate matter emissions and emissions of toxic and harmful substances have continued to increase. Surveys show that haze weather in Beijing has been increasing year by year in recent years. On both sides of the roads in Beijing, the per capita hourly inhalation of pollutants in the traffic microenvironment is about five times the average per capita hourly inhalation of pollutants in Beijing as a whole, which has led to an upward trend in the incidence of respiratory diseases.

Improving urban air quality requires a fundamental reversal of the economic development model. The environmental protection department will strengthen emission control of newly produced vehicles, meet European and American standards in stages, and strengthen the management of the implementation of various types of vehicle standards.