What is the exhaust emission of a car at least?

A car emits harmful exhaust gas every year, which is three times larger than its own weight. The exhaust emission standard has become a hard index that must be achieved in the annual inspection of motor vehicles. Therefore, in view of the negative impact of automobile exhaust on urban atmospheric environment, improving automobile exhaust emission standards will be one of the most direct and effective means.

Domestic automobile exhaust emission standards are basically formulated with reference to European standards, and national IV standards are implemented nationwide, which is equivalent to European V standards.

Judging from the development progress of European countries, the European VI standard came into effect on February 20 12, 12 and 3 1, while the national V standard equivalent to the European VI standard is still in the pilot state in some cities, and the progress is obviously behind Europe.

Extended data:

Due to the serious dispersion and fluidity of automobile operation, the purification technology is limited. In addition to developing internal purification technology, we should also vigorously develop external purification treatment technology.

This should start from two aspects: control technology, mainly to improve the burning rate of fuel, install anti-pollution treatment equipment and develop new engines;

Administrative measures include scrapping and updating, eliminating old cars, developing new cars (that is, motor vehicles without pollutant emissions), and starting with controlling fuel use standards. Replacing leaded gasoline with unleaded gasoline can reduce the emission of toxic substances in gasoline tail gas.