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- Title
Joint Occurrence of Heatwaves and Ozone Pollution and Increased Health Risks in Beijing, China: Roles of Synoptic Weather Pattern and Urbanization.
- Authors
Zong, Lian; Yang, Yuanjian; Xia, Haiyun; Gao, Meng; Sun, Zhaobin; Zheng, Zuofang; Li, Xianxiang; Ning, Guicai; Li, Yubin; Lolli, Simone
- Abstract
Heatwaves (HWs) paired with higher ozone (O3) concentration at surface level pose a serious threat to human health. Their combined modulation of synoptic patterns and urbanization remains unclear. By using five years of summertime temperature and O3 concentrations observation in Beijing, this study explored potential drivers of compound HWs and O3 pollution events. Three unfavourable synoptic weather patterns were identified to dominate the compound HWs and O3 pollution events. The weather patterns contributing to enhance those conditions are characterized by sinking air motion, low boundary layer height, and hot temperatures. Under the synergistic stress of HWs and O3 pollution, the public mortality risk increased by approximately 12.59% (95% confidence interval: 4.66%, 21.42%). Relative to rural areas, urbanization caused higher risks for HWs, but lower risks for O3 over urban areas. In general, unfavourable synoptic patterns and urbanization can enhance the compound risk of events in Beijing by 45.46% and 8.08%, respectively. Our findings provide robust evidence and implications for forecasting compound heatwaves and O3 pollution event and its health risks in Beijing or in other urban areas all over the word having high concentrations of O3 and high-density populations. Key words: Heatwaves, ozone pollution, compound health risks, synoptic weather pattern, urbanization
- Subjects
HEAT waves (Meteorology); OZONE; POLLUTION; WEATHER; URBANIZATION; ATMOSPHERIC sciences
- Publication
Atmospheric Chemistry & Physics Discussions, 2022, p1
- ISSN
1680-7367
- Publication type
Article
- DOI
10.5194/acp-2021-1095