Articles | Volume 26, issue 8
https://doi.org/10.5194/acp-26-5497-2026
https://doi.org/10.5194/acp-26-5497-2026
Research article
 | 
22 Apr 2026
Research article |  | 22 Apr 2026

PAMS-constrained top-down calibration of VOC-speciated CMAQ simulations

Sheng-Po Chen, Chieh-Heng Wang, Yi-Ju Lee, Fang-Yi Cheng, and Jia-Lin Wang

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Multi-site non-methane hydrocarbon source apportionment and ozone insights in Southern Taiwan using positive matrix factorization
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Atmos. Chem. Phys., 26, 2831–2852, https://doi.org/10.5194/acp-26-2831-2026,https://doi.org/10.5194/acp-26-2831-2026, 2026
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Cited articles

Ahmed, M., Ahmad, M., and Rappenglueck, B.: Twenty years (2004–2023) observation of non-methane hydrocarbons in a subtropical coastal environment – Indications of increased isoprene emissions, Atmospheric Environment, 343, 120993, https://doi.org/10.1016/j.atmosenv.2024.120993, 2025. 
Atkinson, R.: Atmospheric chemistry of VOCs and NOx, Atmos. Environ., 34, 2063–2101, https://doi.org/10.1016/S1352-2310(99)00460-4, 2013. 
Byun, D. and Ching, J.: Science algorithms of the EPA Models-3 Community Multiscale Air Quality (CMAQ) Modeling System, U.S. Environmental Protection Agency, EPA/600/R-99/030, Research Triangle Park, NC, USA, 1999. 
Byun, D. and Schere, K.: Review of the Governing Equations, Computational Algorithms, and Other Components of the Models-3 Community Multiscale Air Quality (CMAQ) Modeling System, Applied Mechanics Reviews, 59, 51–77, https://doi.org/10.1115/1.2128636, 2006. 
Cardelino, C. and Chameides, W. L.: Natural hydrocarbons, urbanization, and urban ozone, Journal of Geophysical Research, 95, https://doi.org/10.1029/JD095iD09p13971, 1990. 
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Short summary
Air quality models often group many chemicals together, which can limit their ability to reflect real-world air pollution. In this study, we improved a widely used model by simulating 54 individual organic air pollutants measured across Taiwan. By comparing the model with observations, we corrected emission estimates and improved accuracy. The results show that a small number of pollutants strongly influence ozone formation, offering clear guidance for more effective air quality control.
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