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
Download
Short summary
Trifluoroacetic acid (TFA), was previously proved to participate in sulfuric acid (SA)-dimethylamine (DMA) nucleation in Shanghai, China. However, complex atmospheric environments can influence the nucleation of aerosol significantly. We show the influence of different atmospheric conditions on the SA-DMA-TFA nucleation and find the enhancement by TFA can be significant in cold and polluted areas, which provides the perspective of the realistic role of TFA in different atmospheric environments.
Altmetrics
Preprints
https://doi.org/10.5194/acp-2020-1186
https://doi.org/10.5194/acp-2020-1186

  18 Dec 2020

18 Dec 2020

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

Influence of atmospheric conditions on the role of trifluoroacetic acid in atmospheric sulfuric acid-dimethylamine nucleation

Ling Liu1, Fangqun Yu2, Kaipeng Tu1, Zhi Yang1, and Xiuhui Zhang1 Ling Liu et al.
  • 1Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
  • 2Atmospheric Sciences Research Center, University at Albany, Albany, New York 12203, USA

Abstract. Ambient measurements combined with theoretical simulations have shown evidence that the tropospheric degradation end-products of Freon alternatives, trifluoroacetic acid (TFA), one of the most important and abundant atmospheric organic substances, can enhance the process of sulfuric acid (SA) – dimethylamine (DMA) – based nucleation process in urban environments. However, TFA is widespread all over the world with different atmospheric conditions, such as temperature and nucleation precursor concentration, which are the most important factors potentially influencing the atmospheric nucleation process and thus inducing different nucleation mechanisms. Herein, using the Density Functional Theory combined with the Atmospheric Cluster Dynamics Code, the influence of temperature and nucleation precursor concentration on the role of TFA in the SA-DMA nucleation has been investigated. The results indicate that the growth trends of clusters involving TFA can increase with the decrease of temperature. The enhancement of particle formation rate by TFA and the contributions of SA-DMA-TFA cluster to the cluster formation pathways can be up to as much as 227 times and 95 %, respectively, at relatively low temperature, low SA concentration, high TFA concentration and high DMA concentration, such as in winter or at relatively high atmospheric boundary layer and in megacities far away from industrial sources of sulfur-containing pollutants. These results provide the perspective of the realistic role of TFA in different atmospheric environments, revealing the potential influence of the tropospheric degradation of Freon alternatives under a wide range of atmospheric conditions.

Ling Liu et al.

 
Status: open (until 12 Feb 2021)
Status: open (until 12 Feb 2021)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Ling Liu et al.

Viewed

Total article views: 108 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
80 26 2 108 9 2 3
  • HTML: 80
  • PDF: 26
  • XML: 2
  • Total: 108
  • Supplement: 9
  • BibTeX: 2
  • EndNote: 3
Views and downloads (calculated since 18 Dec 2020)
Cumulative views and downloads (calculated since 18 Dec 2020)

Viewed (geographical distribution)

Total article views: 105 (including HTML, PDF, and XML) Thereof 103 with geography defined and 2 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 20 Jan 2021
Publications Copernicus
Download
Short summary
Trifluoroacetic acid (TFA), was previously proved to participate in sulfuric acid (SA)-dimethylamine (DMA) nucleation in Shanghai, China. However, complex atmospheric environments can influence the nucleation of aerosol significantly. We show the influence of different atmospheric conditions on the SA-DMA-TFA nucleation and find the enhancement by TFA can be significant in cold and polluted areas, which provides the perspective of the realistic role of TFA in different atmospheric environments.
Citation
Altmetrics