What are the symbols for emission standards from China I to China VI?
2 Answers
The symbols for emission standards from China I to China VI are I, II, III, IV, V, and VI respectively. Additional information is as follows: 1. Reasons for establishing emission standards: Automobiles are a mobile source of pollution, emitting primary pollutants such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM), all of which are environmental contaminants that need to be controlled. The sources of automobile pollutant emissions include the exhaust pipe, crankcase, and fuel system. 2. Legislation: With the increasing severity of automobile exhaust pollution, legislation on automobile exhaust emissions has become imperative. Countries around the world established corresponding regulations as early as the 1960s and 1970s to promote advancements in automobile emission control technologies through strict legislation. As automobile emission control technologies continue to improve, the formulation of higher standards has become possible.
I've been driving since the 1990s and witnessed the evolution of emission standards from China I to China VI. These symbols represent Chinese numerals: China I stands for the first-generation standard, and so on up to China VI, which is the current sixth-generation standard. For ordinary car owners like me, vehicles with China I symbols are very old, have poor emission control, and are prone to urban driving restrictions, while China VI vehicles run more smoothly with better exhaust purification. When China I was implemented in 2000, pollution was severe. Now, after the introduction of China VI in 2019, urban smog has improved significantly. When buying a new car, I prioritize the symbol, opting for China V or above to avoid hassles. The entire series has driven technological progress, improved quality of life, and made the automotive industry greener. In the future, China VII may arrive, and we veteran drivers will need to continuously learn and adjust our driving habits.
