1. Improve the quality of existing automobile power plant and fuel. Try to use a diesel engine. From the point of view of pollution, both diesel vehicles and gasoline vehicles are polluted, but no measures have been taken. The pollution of gasoline vehicles is more serious.
2. Exhaust gas purification measures outside the engine. At present, some advanced external purification technologies are widely used to purify the exhaust gas produced by automobiles to reduce pollution. This method can achieve good results. The outside purification technology is to install various purification devices in the exhaust system of the automobile to reduce the pollutants in the exhaust gas by physical and chemical methods.
3, through laws and regulations to limit automobile exhaust emissions.
4. Strengthening the management of in-use vehicles can reduce and eliminate the pollution of automobile exhaust to the atmospheric environment.
Strengthen the maintenance of vehicles in use. In-use vehicle inspection and maintenance system (I/M system) is very important for reducing vehicle pollution. We should further improve China's I/M system and make it play its due role by formulating strict and reasonable I/M system, perfecting inspection and maintenance equipment, clarifying the authority of management departments and strengthening personnel technical training.
5. Reducing automobile use can reduce automobile exhaust pollution. Encouraging the development of public transport and reducing the use of cars is one of the ways to control automobile exhaust pollution. Therefore, we must vigorously develop public transportation, including buses, subways and urban railways, and increase the speed of public transportation to reduce tail gas pollution.
6. Skills of vehicle energy saving and emission reduction: slow-moving hot cars reduce losses, turn off the engine when idling for more than one minute, and close the windows when the speed exceeds 60 km/h, and what else? Turn off the electrical appliances after getting off the bus. The tire pressure is normal, which can save fuel and refuel slowly.
Extended information about the severity of automobile exhaust pollution;
The Annual Report on Environmental Management of Motor Vehicles in China (20 18) issued by the Ministry of Ecology and Environment shows that China has been the world's largest producer and seller of motor vehicles for nine consecutive years, and motor vehicle pollution has become an important source of air pollution in China and an important cause of environmental air pollution, and the urgency of motor vehicle pollution prevention and control has become increasingly prominent.
The person in charge of the Department of Atmospheric Environment Management said that with the rapid increase in the number of motor vehicles, the air in some cities in China began to show the characteristics of combined pollution of soot and motor vehicle exhaust, which directly affected people's health.
In 20 17, the total emission of four pollutants from motor vehicles in China was 43.597 million tons, which was 2.5% lower than that in 20 16. Among them, carbon monoxide (CO) is 33.273 million tons, hydrocarbons (HC) is 407110,000 tons, nitrogen oxides (nitrogen oxides) is 5.743 million tons, and particulate matter (PM) is 509,000 tons.
Automobile is the main contributor to the air pollution emission of motor vehicles, which emits more than 80% of carbon monoxide and hydrocarbons, and more than 90% of nitrogen oxides and particulate matter. Among them, diesel trucks, which account for 7.8% of motor vehicles, emit 57.3% of nitrogen oxides and 77.8% of PM, which is the top priority of motor vehicle pollution prevention and control.
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