Zihang Peng 1,2, Yunshan Ge1,2, Jianwei Tan1,2, Mingliang Fu3, Xin Wang1,2, Ming Chen1,2, Yao Lu1,2, Yue Wu1,2

  • 1 National Lab of Auto Performance and Emission Test, Beijing Institute of Technology, 5th South Zhongguancun Street, Beijing, China
  • 2 Collaborative Innovation Center of Electric Vehicles in Beijing, 5th South Zhongguancun Street, Beijing, China
  • 3 School of Environment, Tsinghua University, (null), China

Received: September 4, 2015
Revised: January 31, 2016
Accepted: May 17, 2016
Download Citation: ||https://doi.org/10.4209/aaqr.2015.09.0534  

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Cite this article:
Peng, Z., Ge, Y., Tan, J., Fu, M., Wang, X., Chen, M., Lu, Y. and Wu, Y. (2016). Real-World Emission from In-Use Construction Equipment in China. Aerosol Air Qual. Res. 16: 1893-1902. https://doi.org/10.4209/aaqr.2015.09.0534


HIGHLIGHTS

  • Eleven pieces of construction equipment were tested using PEMS.
  • The emission factors of regulated pollutants for construction equipment are given.
  • PM carbonaceous compositions and particle-phase PAHs are analyzed.
  • Emission at the start-up phase is compared with that in the normal idling mode.

 

ABSTRACT


In-use emission factors of 11 pieces of construction equipment were collected using a portable emission measurement system. These vehicles include excavators, bulldozers and loaders. Both regulated pollutants and PM carbonaceous compositions were tested. The emission factors of CO, HC, NOx and PM for these vehicles are 13–91 g kg–1, 12–63 g kg–1, 1.4–27 g kg–1, and 2.5–13 g kg–1 respectively. Their fuel consumption rates are also provided. The vehicles in the idling mode are higher in the emission factors of CO and HC than those in the other operating modes. The vehicles certified to different emission standards are significantly different in PM carbonaceous compositions. The analysis by GC-MS shows that the majority of particle-phase PAHs from these vehicles are 2- or 3-ring PAHs, while high-molecular-weight PAHs are seldom detected. There is a great difference in the emission factors of PM and OM between the vehicles at the start-up phase and those in the normal idling mode. Some conclusions and recommendations are made by comparing this study with some others.


Keywords: Portable emission measurement system; Construction equipment; Emission factor; Carbonaceous particle; Particle-phase PAHs


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