The role of heatwaves in modifying ozone trends and exceedance probabilities in China: A decade-long analysis revealing climate penalty effects

Data is presented in the manuscript "The role of heatwaves in modifying ozone trends and exceedance probabilities in China: A decade-long analysis revealing climate penalty effects" submitted to Journal of Cleaner Production. This study provides a comprehensive and statistically detailed analysis of ground-level ozone(O3) pollution trends and the impact of extreme climate events (heatwaves) across mainland China over the past decade (2015–2024).