Regarding how to use motor vehicle restriction measures in the prevention and control of air pollution, Luo Yi, director of the Monitoring Department of the Ministry of Environmental Protection, said yesterday that motor vehicle pollution prevention and control is a comprehensive problem involving various conditions such as vehicle conditions, oil conditions, and traffic conditions in various places. Different measures are taken in different situations.
It is reported that the Air Pollution Prevention and Control Law, which is being revised, proposes to stipulate that local governments may restrict or prohibit the driving of some motor vehicles according to the needs of air pollution prevention and control. During the period under review, many members of the Standing Committee of the National People's Congress believe that this move may normalize motor vehicle restrictions.
Luo Yi said yesterday that the specific contribution of motor vehicles to air pollution requires detailed analysis of the sources of pollutants. He introduced that according to the deployment, the source analysis results of Beijing, Tianjin and Shijiazhuang have been announced to the public. The analysis results of the three places show that the types of pollution vary from place to place. Among Beijing's local pollution sources, motor vehicles are the first, accounting for 31%. Tianjin has the largest contribution to dust, and motor vehicles are the third largest. Coal-fired, industrial, and dust are the three major sources of contribution.
"After the source analysis results came out, the localities have adjusted the air pollution control plan accordingly, and Beijing has increased the prevention and control of motor vehicles." However, Luo Yi pointed out that motor vehicle pollution prevention and control is a comprehensive problem involving the condition of the car. , oil products, traffic conditions in various places, need to take targeted measures.
“In Beijing's PM2.5 source, secondary pollution sources account for more than 60%, and there are more cases of heavy pollution. This shows that Beijing's air is highly oxidizing, and the gas emitted by motor vehicles is quickly oxidized into particulate matter.” Luo Yi explained that the reason for the high oxidizability is due to the high emissions of oxidizing volatile organic compounds, and the discharge of these substances also needs attention.

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