What is the automobile exhaust emission standard

Pacific Automotive Network automobile emission standards are the regulations on the content of carbon monoxide, hydrocarbons and nitrogen oxides, particulates, carbon smoke and other harmful gases discharged from automobile exhaust.

With the sharp increase in the number of cars, traffic congestion has become a common occurrence, and the automobile exhaust brought by too many vehicles is even more harmful. Exhaust contains 150 to 200 kinds of different compounds, due to automobile emissions mainly in the 0.3 meters to 2 meters between the human body's breathing range, the human body's health damage is very serious, which is the most harmful to the human carbon monoxide, hydrocarbons, nitrogen oxides, and solid suspended particulate matter.

The National VI emission standard can be said to be an advanced version of the National V emission standard, although it is advanced, but the gap between them is not a little bit. This standard requires a 50 percent reduction in carbon monoxide emissions from gasoline vehicles, a 50 percent drop in total hydrocarbon and total non-methane hydrocarbon emission limits, and a 42 percent tightening of nitrogen oxide emission limits, excluding the effects of operating conditions and testing. (Photo: Bunbin Wu, PacificAuto.com)