What is the Difference Between China IV and China V?

[DelMiranda]

Here are the differences between China IV and China V: Differences in Emission Standards: Compared to China IV emission standards, China V is more stringent, with fewer pollutants emitted, making it more environmentally friendly. Differences in Control Systems: China V, compared to China IV, mainly features a more complex emission control system, resulting in increased costs. Differences in Pollution Levels: To further reduce photochemical pollution caused by gasoline evaporation emissions and decrease deposits in car engine intake systems, the olefin content has been reduced from 28% in the fourth stage to 24%. Solid suspended particles are complex in composition and have strong adsorption capabilities, capable of adsorbing various metal dust, highly carcinogenic substances like benzopyrene, and pathogenic microorganisms. These solid suspended particles enter the human lungs through respiration and remain in different parts of the respiratory tract through collision, diffusion, and deposition, leading to respiratory diseases.