Articles | Volume 24, issue 9
https://doi.org/10.5194/acp-24-5265-2024
https://doi.org/10.5194/acp-24-5265-2024
Research article
 | 
07 May 2024
Research article |  | 07 May 2024

A better representation of volatile organic compound chemistry in WRF-Chem and its impact on ozone over Los Angeles

Qindan Zhu, Rebecca H. Schwantes, Matthew Coggon, Colin Harkins, Jordan Schnell, Jian He, Havala O. T. Pye, Meng Li, Barry Baker, Zachary Moon, Ravan Ahmadov, Eva Y. Pfannerstill, Bryan Place, Paul Wooldridge, Benjamin C. Schulze, Caleb Arata, Anthony Bucholtz, John H. Seinfeld, Carsten Warneke, Chelsea E. Stockwell, Lu Xu, Kristen Zuraski, Michael A. Robinson, J. Andrew Neuman, Patrick R. Veres, Jeff Peischl, Steven S. Brown, Allen H. Goldstein, Ronald C. Cohen, and Brian C. McDonald

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Cited articles

Ackermann, I., Hass, H., Memmesheimer, M., Ebel, A., Binkowski, F., and Shankar, U.: Modal aerosol dynamics model for Europe-Uncertainty analysis and experimental evaluation, Atmos. Environ., 32, 2981–2999, 1998. a
ACOM: Photolysis in WRF-Chem, https://www2.acom.ucar.edu/sites/default/files/documents/Instructions_photolysis_opt_4.pdf (last access: 5 November 2023), 2021. a
Ahmadov, R., McKeen, S., Robinson, A., Bahreini, R., Middlebrook, A., De Gouw, J., Meagher, J., Hsie, E.-Y., Edgerton, E., Shaw, S., and Trainer, M.: A volatility basis set model for summertime secondary organic aerosols over the eastern United States in 2006, J. Geophys. Res.-Atmos., 117, https://doi.org/10.1029/2011JD016831, 2012. a, b, c
Alford, K. L. and Kumar, N.: Pulmonary health effects of indoor volatile organic compounds – a meta-analysis, Int. J. Env. Res. Pub. He., 18, 1578, https://doi.org/10.3390/ijerph18041578, 2021. a
Alton, M. W. and Browne, E. C.: Atmospheric chemistry of volatile methyl siloxanes: Kinetics and products of oxidation by OH radicals and Cl atoms, Environ. Sci. Technol., 54, 5992–5999, 2020. a
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Short summary
Volatile organic compounds (VOCs) fuel the production of air pollutants like ozone and particulate matter. The representation of VOC chemistry remains challenging due to its complexity in speciation and reactions. Here, we develop a chemical mechanism, RACM2B-VCP, that better represents VOC chemistry in urban areas such as Los Angeles. We also discuss the contribution of VOCs emitted from volatile chemical products and other anthropogenic sources to total VOC reactivity and O3.
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