Measurement report: Elevated atmospheric ammonia may promote particle pH and HONO formation – insights from the COVID-19 pandemic

Zhang, Xinyuan; Wang, Lingling; Wang, Nan; Ma, Shuangliang; Wang, Shenbo; Zhang, Ruiqin; Zhang, Dong; Wang, Mingkai; Zhang, Hongyu

doi:https://doi.org/10.5194/acp-24-9885-2024

Articles | Volume 24, issue 17

https://doi.org/10.5194/acp-24-9885-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-9885-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 17

Measurement report

|

06 Sep 2024

Measurement report |

| 06 Sep 2024

Measurement report: Elevated atmospheric ammonia may promote particle pH and HONO formation – insights from the COVID-19 pandemic

Xinyuan Zhang, Lingling Wang, Nan Wang, Shuangliang Ma, Shenbo Wang, Ruiqin Zhang, Dong Zhang, Mingkai Wang, and Hongyu Zhang

Supplement

https://doi.org/10.5194/acp-24-9885-2024-supplement

Data sets

Elevated atmospheric ammonia may promote the particle pH and HONO formation: Insights from the COVID-19 pandemic - Data Ruiqin Zhang https://zenodo.org/records/10273539

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Short summary

This study highlights the importance of the redox reaction of NO₂ with SO₂ based on actual atmospheric observations. The particle pH in future China is expected to rise steadily. Consequently, this reaction could become a significant source of HONO in China. Therefore, it is crucial to coordinate the control of SO₂, NO_x, and NH₃ emissions to avoid a rapid increase in the particle pH.