Articles | Volume 26, issue 4
https://doi.org/10.5194/acp-26-2831-2026
© Author(s) 2026. 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-26-2831-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
26 Feb 2026
Research article |
| 26 Feb 2026
| 26 Feb 2026
Multi-site non-methane hydrocarbon source apportionment and ozone insights in Southern Taiwan using positive matrix factorization
Duy-Hieu Nguyen
Department of Chemistry, National Central University, Taoyuan, 320317, Taiwan
Hsin-Cheng Hsieh
Department of Chemistry, National Central University, Taoyuan, 320317, Taiwan
Mao-Chang Liang
Institute of Earth Sciences, Academia Sinica, Taipei 115201, Taiwan
Neng-Huei Lin
Department of Atmospheric Science, National Central University, Taoyuan, 320317, Taiwan
Chieh-Heng Wang
CORRESPONDING AUTHOR
Center for Environmental Studies, National Central University, Taoyuan, 320317, Taiwan
Jia-Lin Wang
CORRESPONDING AUTHOR
Department of Chemistry, National Central University, Taoyuan, 320317, Taiwan
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Short summary
Using year-round, high-frequency non-methane hydrocarbons measurements from three monitoring sites, each with distinct source–receptor characteristics, this study applied the source apportionment model to resolve eight sources and assess ozone-forming potential. Distinct acetylene plumes at Linyuan (R² > 0.99) provided an internal consistency check. Results reveal spatial–seasonal source variability and highlight the roles of petroleum, mixed, and aged air sources in ozone formation management.
Using year-round, high-frequency non-methane hydrocarbons measurements from three monitoring...
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