Measurement report: Variations and environmental impacts of atmospheric N<sub>2</sub>O<sub>5</sub> concentrations in urban Beijing during the 2022 Winter Olympics

Zhang, Tiantian; Zuo, Peng; Chen, Yi; Liu, Tong; Zeng, Linghan; Lin, Weili; Ye, Chunxiang

doi:10.5194/acp-25-16331-2025

Articles | Volume 25, issue 22

https://doi.org/10.5194/acp-25-16331-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-16331-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 22

Measurement report

|

20 Nov 2025

Measurement report |

| 20 Nov 2025

Measurement report: Variations and environmental impacts of atmospheric N₂O₅ concentrations in urban Beijing during the 2022 Winter Olympics

Tiantian Zhang, Peng Zuo, Yi Chen, Tong Liu, Linghan Zeng, Weili Lin, and Chunxiang Ye

Supplement

https://doi.org/10.5194/acp-25-16331-2025-supplement

Data sets

Measurement report: Variations and environmental impacts of atmospheric N2O5 concentrations in urban Beijing during the 2022 Winter Olympics [Data set] Tiantian Zhang et al. https://doi.org/10.5281/zenodo.15381990

Download

Article (3097 KB)
Full-text XML

Short summary

During the 2022 Beijing Winter Olympics, we conducted field observations of N₂O₅. By comparing pre- and post-Olympic pollutant levels, we evaluated the impact of emission reductions on nocturnal chemistry. The results showed that the reactivity of nitric oxide (NO) and volatile organic compounds (VOCs) with NO₃ decreased, and that the heterogeneous uptake of N₂O₅ played a critical role in nocturnal nitrate formation.