Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 15
Articles | Volume 25, issue 15
https://doi.org/10.5194/acp-25-8859-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-8859-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 15
Research article
 | 
13 Aug 2025
Research article |  | 13 Aug 2025

Climate-driven biogenic emissions alleviate the impact of human-made emission reductions on O3 control in the Pearl River Delta region, southern China

Nan Wang, Song Liu, Jiawei Xu, Yanyu Wang, Chun Li, Yuning Xie, Hua Lu, and Fumo Yang

Supplement

https://doi.org/10.5194/acp-25-8859-2025-supplement

Data sets

Real-time air quality monitoring data Environmental Monitoring Station of China https://air.cnemc.cn:18007/

Ozone sounding data for Hong Kong World Ozone and Ultraviolet Radiation Data Centre https://woudc.org/data/explore.php

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

MODIS Terra/Aqua land products NASA Land Processes Distributed Active Archive Center https://e4ftl01.cr.usgs.gov/MOTA/

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Short summary
We found that climate warming and changes in vegetation have increased biogenic volatile organic compound emissions in the Pearl River Delta region. These increasing natural emissions, mainly due to climate warming, are weakening the benefits of reducing human-made emissions through control, leading to higher ozone levels. This work helps us understand how climate change influences air quality and provides important insights for improving pollution control strategies in the future.
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