Articles | Volume 18, issue 5
https://doi.org/10.5194/acp-18-3641-2018
https://doi.org/10.5194/acp-18-3641-2018
Research article
 | 
13 Mar 2018
Research article |  | 13 Mar 2018

Modeling reactive ammonia uptake by secondary organic aerosol in CMAQ: application to the continental US

Shupeng Zhu, Jeremy R. Horne, Julia Montoya-Aguilera, Mallory L. Hinks, Sergey A. Nizkorodov, and Donald Dabdub

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Latest update: 03 Jul 2025
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Short summary
For the first time, the interaction between ammonia and secondary organic aerosol (SOA) is integrated in an air quality model and investigated on a national scale. Our original analysis from simulation results indicates that a significant reduction in gas-phase ammonia is possible due to its uptake onto SOA. Significant impact is also observed in the concentration of particulate matter, with a distinct spatial pattern over different seasons.
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