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

Journal metrics

IF value: 5.414
IF5.414
IF 5-year value: 5.958
IF 5-year
5.958
CiteScore value: 9.7
CiteScore
9.7
SNIP value: 1.517
SNIP1.517
IPP value: 5.61
IPP5.61
SJR value: 2.601
SJR2.601
Scimago H <br class='widget-line-break'>index value: 191
Scimago H
index
191
h5-index value: 89
h5-index89
Preprints
https://doi.org/10.5194/acp-2019-1151
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-2019-1151
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  04 May 2020

04 May 2020

Review status
This preprint is currently under review for the journal ACP.

Investigating three patterns of new particles growing to cloud condensation nuclei size in Beijing's urban atmosphere

Liya Ma1, Yujiao Zhu1,2, Mei Zheng3, Yele Sun4, Lei Huang1, Xiaohuan Liu1, Yang Gao1, Yanjie Shen1, Huiwang Gao1,5, and Xiaohong Yao1,5 Liya Ma et al.
  • 1Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China
  • 2Environment Research Institute, Shandong University, Qingdao, Shandong 266237, China
  • 3State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
  • 4State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
  • 5Laboratory for Marine Ecology and Environmental Sciences, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China

Abstract. The growth of newly formed particles with diameters from ~ 10 nm to a larger size was investigated in Beijing's urban atmosphere on 10–23 December 2011, 12–27 April 2012 and through June–August 2014. The maximum geometric median diameter (Dpgmax) of newly formed particles in 11/27 new particle formation (NPF) events through June–August exceeded 75 nm, and the grown new particles may contribute to the population of cloud condensation nuclei. In contrast, no apparent growth in new particles with Dpgmax < 20 nm was observed in all of the events occurring in December, in approximately half of the NPF events occurring in April and only 2/27 of the NPF events occurring in June–August. New particles observed in the latter NPF events were too small to be activated as cloud condensation nuclei. Apparent new particle growth with Dpgmax ≤ 50 nm was observed in the remaining NPF events. The 11/27 NPF events with Dpgmax exceeded 75 nm were thereby analyzed in-depth. They are clearly three particle growth pattern classifications: one-stage growth, which is characterized by a continuous increase in Dpgmax ≥ 80 nm (4/11 NPF events), and two-stage growth-A and growth-B, which are characterized by either no apparent growth (two-stage growth-A) or a shrinkage of particles (two-stage growth-B) in the middle 2–4 hours of the growth period (7/11 NPF events). Combining the observations of gaseous pollutants and the measured (or modeled) concentrations of particulate chemical species, the three growth patterns were discussed in terms of the spatial heterogeneity of NPF, the formation of secondary aerosols and the evaporation of semi-volatile particulates. Secondary organic species and NH4NO3 were argued to be two major contributors to the growth in new particles, but NH4NO3 likely contributed to growth only in the late afternoon and/or at nighttime.

Liya Ma et al.

Interactive discussion

Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Login for Authors/Editors] [Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Liya Ma et al.

Viewed

Total article views: 372 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
271 92 9 372 29 6 5
  • HTML: 271
  • PDF: 92
  • XML: 9
  • Total: 372
  • Supplement: 29
  • BibTeX: 6
  • EndNote: 5
Views and downloads (calculated since 04 May 2020)
Cumulative views and downloads (calculated since 04 May 2020)

Viewed (geographical distribution)

Total article views: 303 (including HTML, PDF, and XML) Thereof 303 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 29 Oct 2020
Publications Copernicus
Download
Short summary
In this study, we investigate three patterns of new particles growing to CCN size, i.e., one-stage growth, two-stage growth-A and growth-B. Combining the observations of gaseous pollutants and the measured (or modeled) particulate chemical species, the three growth patterns were discussed in terms of the spatial heterogeneity, the formation of secondary aerosols and the evaporation of semi-volatile particulates. The survival probability of new particles to CCN size was also discussed.
In this study, we investigate three patterns of new particles growing to CCN size, i.e.,...
Citation
Altmetrics