Articles | Volume 15, issue 18
https://doi.org/10.5194/acp-15-10669-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-15-10669-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
25 Sep 2015
Research article |
| 25 Sep 2015
Influence of crustal dust and sea spray supermicron particle concentrations and acidity on inorganic NO3− aerosol during the 2013 Southern Oxidant and Aerosol Study
H. M. Allen
now at: Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
Department of Chemistry, Reed College, Portland, OR, USA
D. C. Draper
Department of Chemistry, Reed College, Portland, OR, USA
now at: Department of Chemistry, University of California, Irvine, CA, USA
B. R. Ayres
Department of Chemistry, Reed College, Portland, OR, USA
Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
A. Bondy
Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
S. Takahama
École Polytechnique Fèdèrale de Lausanne, Lausanne, Switzerland
R. L. Modini
École Polytechnique Fèdèrale de Lausanne, Lausanne, Switzerland
K. Baumann
Atmospheric Research & Analysis, Inc., Cary, NC, USA
E. Edgerton
Atmospheric Research & Analysis, Inc., Cary, NC, USA
C. Knote
Meteorologisches Institut, Ludwig-Maximilians-Universität, Munich, Germany
A. Laskin
William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
B. Wang
William R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, USA
Department of Chemistry, Reed College, Portland, OR, USA
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Latest update: 18 Nov 2025
Short summary
We report ion chromatographic measurements of gas- and aerosol-phase inorganic species at the SOAS 2013 field study. Our particular focus is on inorganic nitrate aerosol formation via HNO3 uptake onto coarse-mode dust and sea salt particles, which we find to be the dominant source of episodic inorganic nitrate at this site, due to the high acidity of the particles preventing formation of NH4NO3. We calculate a production rate of inorganic nitrate aerosol.
We report ion chromatographic measurements of gas- and aerosol-phase inorganic species at the...
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