Widespread surface ozone reduction triggered by dust storm disturbance on ozone production and destruction chemistry

作者：Y. Zhang, Nan Li, Keqin Tang, Ming Wang, Haiwei Li, Ke Li, Bo Zheng, Qiang Zhang, Meng Gao, Jie Fang, Haoran Zhang, Shijie Cui, Junfeng Wang, Mindong Chen, Hong Liao, Xinlei Ge, Didier Hauglustaine, Yves Balkanski, Philippe Ciais, Guibin Jiang · 发表于：Science Advances · 年份：2025 · DOI：10.1126/sciadv.adr4297 · 被引用次数：7 · 研究领域：Atmospheric chemistry and aerosols、Atmospheric aerosols and clouds、Atmospheric Ozone and Climate

Natural dust storms are associated with changes to atmospheric photochemical processes, including changes in surface ozone, a critical global air pollutant. Here, we quantified the change in surface ozone during dust storms for regions in China by using a synthesis of measurements and modeling approaches. Our results showed that notable reductions of the average ozone concentration (2.0 to 12.2 parts per billion by volume) were observed during the 12 dust storm events from 2016 to 2023, relative to predust storm levels. The chemical interactions of dust particles with ozone production processes played crucial roles in explaining approximately 13 to 35% of the observed ozone reduction, alongside the impact of intense meteorological disturbances on transport and formation of ozone. Among these interactions, the uptake of ozone, reactive nitrogen, and hydroperoxyl radical by dust particles could substantially contribute to the ozone suppression. This study highlighted the importance of interactions between severe dust pollution and atmospheric photochemistry.