Articles | Volume 21, issue 10
https://doi.org/10.5194/acp-21-8111-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-8111-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 May 2021
Research article |
| 27 May 2021
The role of coarse aerosol particles as a sink of HNO3 in wintertime pollution events in the Salt Lake Valley
Amy Hrdina
Department of Chemistry, University of Toronto, Toronto, ON, M5S 0A6, Canada
now at: Department of Civil and Environmental Engineering,
Massachusetts Institute of Technology, Cambridge, MA 02139, USA
Jennifer G. Murphy
CORRESPONDING AUTHOR
Department of Chemistry, University of Toronto, Toronto, ON, M5S 0A6, Canada
Anna Gannet Hallar
Department of Atmospheric Sciences, University of Utah, Salt Lake
City, UT 84112, USA
John C. Lin
Department of Atmospheric Sciences, University of Utah, Salt Lake
City, UT 84112, USA
Alexander Moravek
Department of Chemistry, University of Toronto, Toronto, ON, M5S 0A6, Canada
now at: Department of Chemistry, York University, Toronto, ON,
M3J 1P3, Canada
Ryan Bares
Department of Atmospheric Sciences, University of Utah, Salt Lake
City, UT 84112, USA
Ross C. Petersen
Department of Atmospheric Sciences, University of Utah, Salt Lake
City, UT 84112, USA
now at: Department of Physical Geography and Ecosystem
Science, Lund University, Lund, Sweden
Alessandro Franchin
Chemical Sciences Laboratory, NOAA Earth System Research Laboratories (ESRL), Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309, USA
Ann M. Middlebrook
Chemical Sciences Laboratory, NOAA Earth System Research Laboratories (ESRL), Boulder, CO 80305, USA
Lexie Goldberger
Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195, USA
now at: Pacific Northwest National Laboratory, Richland, WA 99352, USA
Ben H. Lee
Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO 80309, USA
Munkh Baasandorj
Department of Atmospheric Sciences, University of Utah, Salt Lake
City, UT 84112, USA
Steven S. Brown
Chemical Sciences Laboratory, NOAA Earth System Research Laboratories (ESRL), Boulder, CO 80305, USA
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Cited
6 citations as recorded by crossref.
- Coupled Air Quality and Boundary-Layer Meteorology in Western U.S. Basins during Winter: Design and Rationale for a Comprehensive Study A. Hallar et al. 10.1175/BAMS-D-20-0017.1
- Size-segregated chemical compositions of particulate matter including PM0.1 in northern Vietnam, a highly polluted area where notable seasonal episodes occur Y. Kurotsuchi et al. 10.1016/j.apr.2022.101478
- Ionic Composition of Particulate Matter across Canada Shows Evidence for Near-Ubiquitous Chloride Activation and Sulfate Neutralization E. McLay & D. Donaldson 10.1021/acsearthspacechem.2c00305
- Confronting Uncertainties of Simulated Air Pollution Concentrations during Persistent Cold Air Pool Events in the Salt Lake Valley, Utah X. Sun et al. 10.1021/acs.est.1c05467
- Wintertime haze and ozone at Dinosaur National Monument A. Prenni et al. 10.1080/10962247.2022.2048922
- Comparison of Urban Air Quality Simulations During the KORUS‐AQ Campaign With Regionally Refined Versus Global Uniform Grids in the Multi‐Scale Infrastructure for Chemistry and Aerosols (MUSICA) Version 0 D. Jo et al. 10.1029/2022MS003458
6 citations as recorded by crossref.
- Coupled Air Quality and Boundary-Layer Meteorology in Western U.S. Basins during Winter: Design and Rationale for a Comprehensive Study A. Hallar et al. 10.1175/BAMS-D-20-0017.1
- Size-segregated chemical compositions of particulate matter including PM0.1 in northern Vietnam, a highly polluted area where notable seasonal episodes occur Y. Kurotsuchi et al. 10.1016/j.apr.2022.101478
- Ionic Composition of Particulate Matter across Canada Shows Evidence for Near-Ubiquitous Chloride Activation and Sulfate Neutralization E. McLay & D. Donaldson 10.1021/acsearthspacechem.2c00305
- Confronting Uncertainties of Simulated Air Pollution Concentrations during Persistent Cold Air Pool Events in the Salt Lake Valley, Utah X. Sun et al. 10.1021/acs.est.1c05467
- Wintertime haze and ozone at Dinosaur National Monument A. Prenni et al. 10.1080/10962247.2022.2048922
- Comparison of Urban Air Quality Simulations During the KORUS‐AQ Campaign With Regionally Refined Versus Global Uniform Grids in the Multi‐Scale Infrastructure for Chemistry and Aerosols (MUSICA) Version 0 D. Jo et al. 10.1029/2022MS003458
Latest update: 26 Sep 2023
Short summary
Wintertime air pollution in the Salt Lake Valley is primarily composed of ammonium nitrate, which is formed when gas-phase ammonia and nitric acid react. The major point in this work is that the chemical composition of snow tells a very different story to what we measured in the atmosphere. With the dust–sea salt cations observed in PM2.5 and particle sizing data, we can estimate how much nitric acid may be lost to dust–sea salt that is not accounted for and how much more PM2.5 this could form.
Wintertime air pollution in the Salt Lake Valley is primarily composed of ammonium nitrate,...
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