Articles | Volume 22, issue 6
Research article
29 Mar 2022
Research article |  | 29 Mar 2022

Impacts of aerosol–photolysis interaction and aerosol–radiation feedback on surface-layer ozone in North China during multi-pollutant air pollution episodes

Hao Yang, Lei Chen, Hong Liao, Jia Zhu, Wenjie Wang, and Xin Li

Data sets

Hourly/Sub-Hourly Observational Data National Centers for Environmental Information

Aeronet NASA

Air pollutants dataset in China China National Environmental Monitoring Centre (CNEMC)

Upper Air Observations University of Wyoming

Short summary
Aerosols can influence O3 through aerosol–radiation interactions, including aerosol–photolysis interaction (API) and aerosol–radiation feedback (ARF). The weakened photolysis rates and changed meteorological conditions reduce surface-layer O3 concentrations by up to 9.3–11.4 ppb, with API and ARF contributing 74.6 %–90.0 % and 10.0 %–25.4 % of the O3 decrease in three episodes, respectively, which indicates that API is the dominant way for O3 reduction related to aerosol–radiation interactions.
Final-revised paper