Articles | Volume 19, issue 24
https://doi.org/10.5194/acp-19-15691-2019
https://doi.org/10.5194/acp-19-15691-2019
Research article
 | 
20 Dec 2019
Research article |  | 20 Dec 2019

Wintertime spatial distribution of ammonia and its emission sources in the Great Salt Lake region

Alexander Moravek, Jennifer G. Murphy, Amy Hrdina, John C. Lin, Christopher Pennell, Alessandro Franchin, Ann M. Middlebrook, Dorothy L. Fibiger, Caroline C. Womack, Erin E. McDuffie, Randal Martin, Kori Moore, Munkhbayar Baasandorj, and Steven S. Brown

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Latest update: 04 Mar 2024
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Short summary
Ammonium nitrate is a major component of fine particulate matter of wintertime air pollution in the Great Salt Lake Region (UT, USA). We investigate the sources of ammonia in the region by using aircraft observations and comparing them to modelled ammonia mixing ratios based on emission inventory estimates. The results suggest that ammonia emissions are underestimated, specifically in regions with high agricultural activity, while ammonia in Salt Lake City is mainly of local origin.
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