What is the current national emission standard for automobiles?
3 Answers
The current national emission standard for automobiles is the China VI standard. The fuel standards and automobile emission standards under China VI have become more stringent, including stricter limits on sulfur, oxygen, methanol, and benzene content. Methods to check if a car meets the China VI standard include: 1. Check the vehicle conformity certificate: The certificate accompanying the car at the time of production clearly states the vehicle's emission standard; 2. Refer to the vehicle's packing list: The emission standard can be found in the vehicle information section; 3. Review the conformity certificate: It includes exhaust emissions and specifies the corresponding emission standard; 4. Query on the Motor Vehicle Environmental Protection Website: Find the public query platform on the homepage, enter the vehicle's VIN code and the last 6 digits of the engine number to check; 5. Inspect the vehicle's environmental protection label: The back of the environmental protection label on the car's front windshield clearly indicates the vehicle's emission standard.
Last year when I bought a car, I did thorough research. The nationwide China 6 emission standard has now entered its second phase - China 6b. To be honest, this standard is much stricter than the previous China 5, with particularly tight restrictions on carbon monoxide emissions. I specifically checked the data - China 6b vehicles emit half as much hydrocarbons and nitrogen oxides during testing compared to China 5 vehicles. Nowadays, new vehicles must meet China 6b standards to get licensed, especially in major cities where enforcement is particularly strict. I remember the salesperson told me that China 6 vehicles are all equipped with particulate filters, and the white exhaust smoke has significantly reduced. Actually, since last July, all newly produced gasoline and diesel vehicles nationwide have been required to meet this standard compulsorily. Even someone like me who doesn't understand technology has noticed the air quality improving on the roads.
From an environmental perspective, China's National VI emission standards represent a significant advancement. The currently implemented main phase is China VI-b, which reduces pollutant emissions by 4.8 kilograms per vehicle annually. Most notably, the nitrogen oxide limit value has been reduced by over 40% compared to China V standards, with roadside air monitoring stations showing decreased PM2.5 readings. Last month's Ministry of Ecology and Environment report indicated that the nationwide implementation of China VI-b standards has reduced total pollutant emissions from light-duty vehicles by 25%. I believe this automotive industry transformation deserves recognition - while increasing manufacturing costs, it substantially improves urban living quality in the long run. Personally, I strongly support such policies as everyone wants cleaner air to breathe.
