Articles | Volume 22, issue 9
https://doi.org/10.5194/acp-22-6291-2022
https://doi.org/10.5194/acp-22-6291-2022
Research article
 | 
16 May 2022
Research article |  | 16 May 2022

Trends in secondary inorganic aerosol pollution in China and its responses to emission controls of precursors in wintertime

Fanlei Meng, Yibo Zhang, Jiahui Kang, Mathew R. Heal, Stefan Reis, Mengru Wang, Lei Liu, Kai Wang, Shaocai Yu, Pengfei Li, Jing Wei, Yong Hou, Ying Zhang, Xuejun Liu, Zhenling Cui, Wen Xu, and Fusuo Zhang

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Latest update: 20 May 2024
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Short summary
PM2.5 pollution is a pressing environmental issue threatening human health and food security globally. We combined a meta-analysis of nationwide measurements and air quality modeling to identify efficiency gains by striking a balance between controlling NH3 and acid gas emissions. Persistent secondary inorganic aerosol pollution in China is limited by acid gas emissions, while an additional control on NH3 emissions would become more important as reductions in SO2 and NOx emissions progress.
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