OPEN ACCESS

Articles online

Gaseous and Carbonaceous Composition of PM2.5 Emitted from Rural Vehicles in China

Category: Aerosol and Atmospheric Chemistry

Volume: 18 | Issue: 8 | Pages: 1993-2004
DOI: 10.4209/aaqr.2017.10.0401
PDF

Export Citation:  RIS | BibTeX

Xianbao Shen, Hui Wu, Xinyue Cao, Wei Zhang, Zhiliang Yao , Xuewei Hao

  • School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China

Highlights

10 3-W RVs and 8 4-W RVs were measured in Hebei Province using a PEMS.
The carbonaceous component represents the main fraction of PM2.5 emitted from RVs.
The CO2-based EFs of OC and EC decreased with increasing vehicle mass.
More cruise and less creep mode caused higher EC/OC for 3-W RVs than 4-W RVs.


Abstract

Rural vehicles (RVs) could contribute significantly to on-road vehicle emissions, especially PM2.5 and NOx; This study tested 10 three-wheeled (3-W) RVs and 8 four-wheeled (4-W) RVs on real roads in Hebei Province using a portable emissions measurement system to investigate gaseous concentrations (CO, NOx, and HC) and the carbonaceous composition (EC and OC) of the PM2.5 emitted. The results showed that the tightening emission standards resulted in the CO, HC, and PM2.5 emissions for China II RVs decreasing, but may increasing NOx emission for China II 3-W RVs. The emission level of PM2.5 for China II RVs is between Euro II LDDTs and Euro III LDDTs. The emission factors (EFs) of OC and EC for 3-W RVs were 0.035 ± 0.019 and 0.058 ± 0.055 g km-1, respectively, and for 4-W RVs, they were 0.046 ± 0.018 and 0.031 ± 0.024 g km-1, respectively. The carbonaceous component represents the main fraction of PM2.5 emitted from RVs (84.6% and 87.2% for 3-W and 4-W RVs, respectively), similar to other diesel vehicles. The average distance-based EFs of OC increased with increasing vehicle size (3-W RVs < 4-W RVs). The CO2-based EFs of OC and EC decreased with increasing vehicle mass, consistent with the emission laws of light-, medium-, and heavy-duty diesel trucks. Driving cycles that included more cruise mode and less creep mode resulted in a higher average EC/OC ratio (1.57) for 3-W RVs than for 4-W RVs (0.63), and resulted in the average EC/OC ratios for both types of RV were lower than for highway LDDTs.

Keywords

Carbonaceous composition Gaseous emission Particulate matter Rural vehicle PEMS


Related Article

Aerosol Chamber Characterization for Commercial Particulate Matter (PM) Sensor Evaluation

Dian Ahmad Hapidin, Casmika Saputra, Dian Syah Maulana, Muhammad Miftahul Munir , Khairurrijal Khairurrijal
Article In Press
DOI: 10.4209/aaqr.2017.12.0611
PDF

Chemical Composition of Particulate Matter from Traffic Emissions in a Road Tunnel in Xi’an, China

Yanzhao Hao, Shunxi Deng , Yan Yang, Wenbin Song, Hui Tong, Zhaowen Qiu

Quantification of Carbonaceous Aerosol Emissions from Cookstoves in Senegal

Candela de la Sota , Mar Viana, Moustapha Kane, Issakha Youm, Omar Masera, Julio Lumbreras
;