What are the requirements of the China V emission standard?
4 Answers
The requirements of the China V emission standard are: 1. The carbon monoxide emissions per kilometer driven by a vehicle must not exceed 1000 milligrams; 2. The non-methane hydrocarbon emissions per kilometer driven by a vehicle must not exceed 68 milligrams; 3. The nitrogen oxide emissions per kilometer driven by a vehicle must not exceed 60 milligrams; 4. The particulate matter emissions per kilometer driven by a vehicle must not exceed 4.5 milligrams. The China V standard is the fifth-stage national standard for motor vehicle pollutant emissions, which imposes stricter limits on nitrogen oxides, hydrocarbons, carbon monoxide, and suspended particulate matter emitted by motor vehicles. The purpose is to reduce and prevent environmental pollution caused by vehicle exhaust, protect the ecological environment, and ensure human health.
As an ordinary car owner, I paid special attention to the China 5 emission standard when purchasing a car last year, because new vehicles must comply with this regulation to be registered. Its core requirement is to significantly reduce tailpipe pollutants - for instance, carbon monoxide emissions are reduced by approximately 30%, and nitrogen oxide limits are much stricter, nearly twice as stringent as the previous China 4 standard. Vehicles are now equipped with better catalytic converters to reduce particulate matter and hydrocarbon emissions, which genuinely helps improve air quality. I remember when driving older cars, urban smog was severe, but since implementing China 5, there's noticeably less exhaust odor on roads with visible air quality improvements. Daily driving also feels more reassuring as traffic restriction policies have loosened somewhat, making car travel more convenient. Overall, this standard not only addresses environmental needs but also enhances our quality of life - it's essential to verify the emission standard label when buying a car.
As someone who has long been concerned about the environment, I truly believe the China V emission standard is a significant step forward. It mandates vehicles to reduce emissions of multiple harmful gases, such as strictly controlling nitrogen dioxide and carbon monoxide, thereby cutting down sources of smog. During new vehicle testing, the emission limits are more stringent, forcing automakers to improve engine technology. This leads to cleaner urban air and better respiratory health protection. I've also noticed that since the standard's implementation, more manufacturers have shifted toward cleaner technologies, even accelerating the development of electric vehicles. In daily life, driving a China V-compliant car means noticeably lighter exhaust fumes, allowing us to enjoy driving while protecting nature. Persisting with these standards can help us build a greener home.
Having worked in the auto repair industry for a long time, the China V emission standards have led to upgrades in vehicle emission systems. The core focus is reducing CO and NOx emissions, with stricter emission testing. Gasoline vehicles now use advanced three-way catalytic converters, while diesel vehicles are equipped with DPF to filter particulate matter. The exhaust treatment systems have become more complex, but they effectively reduce pollution. When driving daily, it's important to avoid using low-quality fuel and to check the filters during maintenance.
