What National Emission Standard Should a Car Produced in 2014 Comply With?

[JulietLee]

Cars produced in 2014 could comply with either National IV or National V emission standards. You can check the environmental label located at the upper right corner of the vehicle's windshield, which indicates the specific emission standard the car meets. The primary pollutants emitted by automobiles include carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NOx), and particulate matter (PM). These pollutants originate from the exhaust pipe, crankcase, and fuel system. The National IV emission standard represents the fourth phase of China's motor vehicle pollutant emission regulations, targeting key pollutants such as HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). This standard achieves reduced emission levels through advanced technologies like improved catalytic converter active layers, secondary air injection systems, and cooled exhaust gas recirculation systems, effectively controlling and minimizing vehicle emissions below specified thresholds.