State Key Joint Laboratory of ESPC,State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex,School of Environment,International Joint Laboratory on Low Carbon Clean Energy Innovation,Tsinghua University,Beijing 100084,China;
State Environmental Protection Key Laboratory of Vehicle Emission Control and Simulation,Chinese Research Academy of Environmental Sciences,Beijing 100012,China;
Jinan Automobile Testing Center Co,Ltd.,Jinan 250102,China;
Nonroad mobile machinery; Emission reduction; Emission control policy; Emission factor; Diesel fuel quality;