1,2,- 1Key Laboratory for Urban Habitat Environmental Science and Technology, School of Urban Planning and Design, Peking University, Shenzhen 518055, China (han.wang@pku.edu.cn；fujiayi@pku.org.cn；tanxiiiiii@pku.org.cn；nihg@pkusz.edu.cn；wujs@pkusz.edu.cn)
- 2Key Laboratory for Earth Surface Processes, Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China (han.wang@pku.edu.cn；wujs@pkusz.edu.cn)
- 3Shenzhen Zhili School, No.96 Huahui Road, Dalang Street, Longhua District, Shenzhen 518000, China (fujiayi@pku.org.cn)
- 4Fuwai Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, 100037, China (frankhuang1997@163.com)
- 5State Key Laboratory of Regional and Urban Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China (jmzhang@iue.ac.cn)
Ground-level ozone pollution poses significant public health risks globally, necessitating spatially-resolved governance strategies. Utilizing real-time monitoring data from China's National Environmental Monitoring Network (2017–2021), this study establishes localized exposure-response relationships for Shenzhen through meta-analytic synthesis and BenMAP-CE modeling, quantifying spatial-temporal health burdens. The results found that: (1) the ozone concentration in Shenzhen exhibited fluctuating patterns between seasons and years, indicating an overarching decline between 2017 and 2021 and a peak annual average was observed in 2019; (2) the disease- risk hierarchy was found that cardiovascular mortality with the highest susceptibility (RR=1.0092), followed by respiratory diseases (RR=1.0063), and all-cause non-accidental mortality (RR=1.0046); and (3) severe health burdens were mainly concentrated in western industrial zones in Shenzhen. The study provides insights into the spatial-temporal distribution of ozone pollution and its health impacts in Shenzhen, and the results confirm that ozone control must prioritize megacity emission hotspots and seasonal peaks. Future research should integrate microenvironmental exposure assessment, toxicological mechanisms, and demographic stratification to advance spatially-precise governance in megacities.
How to cite: Wang, H., Fu, J., Huang, H., Zhang, J., Tan, X., Ni, H., and Wu, J.: Spatiotemporal variations of ground-level ozone on public health in megacities: a continuous analysis of Shenzhen, China, EGU General Assembly 2026, Vienna, Austria, 3–8 May 2026, EGU26-21844, https://doi.org/10.5194/egusphere-egu26-21844, 2026.
