Articles | Volume 23, issue 4
https://doi.org/10.5194/acp-23-2331-2023
© Author(s) 2023. 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-23-2331-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Measurement report
| 
17 Feb 2023
Measurement report |
| 17 Feb 2023
| 17 Feb 2023
Measurement report: Emission factors of NH3 and NHx for wildfires and agricultural fires in the United States
Laura Tomsche
Universities Space Research Association (USRA) – NASA Postdoctoral Program (NPP), Columbia, MD, USA
NASA Langley Research Center, Hampton, VA, USA
Institute of Atmospheric Physics, German Aerospace Center,
Oberpfaffenhofen, Germany
now at: Institute of Atmospheric Physics, Johannes Gutenberg
University Mainz, Mainz, Germany
Felix Piel
Department of Chemistry, University of Oslo, Oslo, Norway
IONICON Analytik GmbH, Innsbruck, Austria
Institut für Ionenphysik und Angewandte Physik, Universität
Innsbruck, Innsbruck, Austria
Tomas Mikoviny
Department of Chemistry, University of Oslo, Oslo, Norway
Claus J. Nielsen
Department of Chemistry, University of Oslo, Oslo, Norway
Hongyu Guo
Department of Chemistry and Cooperative Institute for Research in
Environmental Sciences (CIRES), University of Colorado, Boulder, CO, USA
Pedro Campuzano-Jost
Department of Chemistry and Cooperative Institute for Research in
Environmental Sciences (CIRES), University of Colorado, Boulder, CO, USA
Benjamin A. Nault
Center for Aerosol and Cloud Chemistry, Aerodyne Research, Inc.,
Billerica, MA, USA
Melinda K. Schueneman
Department of Chemistry and Cooperative Institute for Research in
Environmental Sciences (CIRES), University of Colorado, Boulder, CO, USA
Jose L. Jimenez
Department of Chemistry and Cooperative Institute for Research in
Environmental Sciences (CIRES), University of Colorado, Boulder, CO, USA
Hannah Halliday
US Environmental Protection Agency, Durham, NC, USA
Glenn Diskin
NASA Langley Research Center, Hampton, VA, USA
Joshua P. DiGangi
NASA Langley Research Center, Hampton, VA, USA
John B. Nowak
NASA Langley Research Center, Hampton, VA, USA
Elizabeth B. Wiggins
Universities Space Research Association (USRA) – NASA Postdoctoral Program (NPP), Columbia, MD, USA
NASA Langley Research Center, Hampton, VA, USA
Emily Gargulinski
National Institute of Aerospace, Hampton, VA, USA
Amber J. Soja
NASA Langley Research Center, Hampton, VA, USA
National Institute of Aerospace, Hampton, VA, USA
Armin Wisthaler
CORRESPONDING AUTHOR
Department of Chemistry, University of Oslo, Oslo, Norway
Institut für Ionenphysik und Angewandte Physik, Universität
Innsbruck, Innsbruck, Austria
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Latest update: 06 Dec 2025
Short summary
Ammonia (NH3) is an important trace gas in the atmosphere and fires are among the poorly investigated sources. During the 2019 Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) aircraft campaign, we measured gaseous NH3 and particulate ammonium (NH4+) in smoke plumes emitted from 6 wildfires in the Western US and 66 small agricultural fires in the Southeastern US. We herein present a comprehensive set of emission factors of NH3 and NHx, where NHx = NH3 + NH4+.
Ammonia (NH3) is an important trace gas in the atmosphere and fires are among the poorly...
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