Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 5.509 IF 5.509
  • IF 5-year value: 5.689 IF 5-year 5.689
  • CiteScore value: 5.44 CiteScore 5.44
  • SNIP value: 1.519 SNIP 1.519
  • SJR value: 3.032 SJR 3.032
  • IPP value: 5.37 IPP 5.37
  • h5-index value: 86 h5-index 86
  • Scimago H index value: 161 Scimago H index 161
Discussion papers
https://doi.org/10.5194/acp-2019-14
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2019-14
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 16 Jan 2019

Research article | 16 Jan 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Atmospheric Chemistry and Physics (ACP).

Significant source of secondary aerosol: formation from gasoline evaporation emissions in the presence of SO2 and NH3

Tianzeng Chen1,3,*, Yongchun Liu2,*, Qingxin Ma1,3,4, Biwu Chu1,3,4, Peng Zhang1, Changgeng Liu1, Jun Liu1,3, and Hong He1,3,4 Tianzeng Chen et al.
  • 1State Key Joint Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • 2Beijing Advanced Innovation center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
  • *These authors contributed equally to this work and should be considered as co-first authors.

Abstract. Gasoline evaporation emissions have become an important anthropogenic source of urban atmospheric VOCs and secondary organic aerosol (SOA). These emissions have a significant impact on regional air quality, especially in China where car ownership is growing rapidly. However, the contribution of evaporation emissions on the secondary aerosol (SA) is not clear in air pollution complex in which high concentration of SO2 and NH3 was present. In this study, the effects of SO2 and NH3 on SA formation from unburned gasoline vapors were investigated in a 30 m3 indoor smog chamber. It was found that increase in SO2 and NH3 concentrations could promote linearly the formation of SA, which could be enhanced by a factor of 1.6–2.6 and 2.0–2.5, respectively. Sulfate was most sensitive to the SO2 concentration, followed by organic aerosol, which was due not only to the well-known acid catalytic effect, but also related to the formation of organic sulfur-containing compounds. In the case of increasing NH3 concentration, ammonium nitrate increased more significantly than organic aerosol, and nitrogen-containing organics were also enhanced, as revealed by the results of positive matrix factorization (PMF) analysis. Meanwhile, new particle formation (NPF) and particle size growth were significantly enhanced in the presence of SO2 and NH3. This work indicates that gasoline evaporation emissions will be a significant source of SA, especially in the presence of high concentrations of SO2 and NH3. Meanwhile, these emissions might also be a potential source of sulfur- and nitrogen-containing organics. Our work provides a scientific basis for the synergistic emission reduction of secondary aerosol precursors, including NOx, SO2, NH3 and particularly VOCs, to mitigate PM pollution in China.

Tianzeng Chen et al.
Interactive discussion
Status: open (until 13 Mar 2019)
Status: open (until 13 Mar 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Tianzeng Chen et al.
Tianzeng Chen et al.
Viewed  
Total article views: 303 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
238 60 5 303 11 2 2
  • HTML: 238
  • PDF: 60
  • XML: 5
  • Total: 303
  • Supplement: 11
  • BibTeX: 2
  • EndNote: 2
Views and downloads (calculated since 16 Jan 2019)
Cumulative views and downloads (calculated since 16 Jan 2019)
Viewed (geographical distribution)  
Total article views: 194 (including HTML, PDF, and XML) Thereof 192 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 17 Feb 2019
Publications Copernicus
Download
Short summary
Effects of SO2 and NH3 on SA formation from unburned gasoline vapors were investigated in a 30 m3 smog chamber. With the increase of SO2 and NH3 concentrations, SA and each of its chemical species were promoted. Meanwhile, NPF and particle size growth were also significantly enhanced. This work indicates that gasoline evaporation emissions will be a significant source of SA, sulfur- and nitrogen-containing organics, especially in the presence of high concentrations of SO2 and NH3.
Effects of SO2 and NH3 on SA formation from unburned gasoline vapors were investigated in a...
Citation