When did China IV diesel vehicles start in 2013?
1 Answers
Specific dates are as follows: Light-duty diesel vehicles: July 1, 2013, when the China IV emission standard was implemented nationwide. Heavy-duty diesel vehicles: January 1, 2012, when the China IV emission standard was implemented nationwide. Here are the relevant details: 1. Vehicle emission pollutants: The main pollutants emitted by vehicles include HC (hydrocarbons), NOx (nitrogen oxides), CO (carbon monoxide), and PM (particulate matter). The national emission standards are primarily based on the European Union standards, with some adaptive modifications made on top of the EU standards. 2. China IV: The China IV emission standard is the fourth stage of national standards for motor vehicle pollutant emissions. It involves the application of technologies such as improved catalytic converter active layers, secondary air injection, and exhaust gas recirculation systems with cooling devices to control and reduce vehicle emissions to below specified levels.