Articles | Volume 19, issue 3
https://doi.org/10.5194/acp-19-1971-2019
https://doi.org/10.5194/acp-19-1971-2019
Research article
 | 
13 Feb 2019
Research article |  | 13 Feb 2019

A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing

Yiqun Lu, Chao Yan, Yueyun Fu, Yan Chen, Yiliang Liu, Gan Yang, Yuwei Wang, Federico Bianchi, Biwu Chu, Ying Zhou, Rujing Yin, Rima Baalbaki, Olga Garmash, Chenjuan Deng, Weigang Wang, Yongchun Liu, Tuukka Petäjä, Veli-Matti Kerminen, Jingkun Jiang, Markku Kulmala, and Lin Wang

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Latest update: 20 Jul 2024
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Short summary
Gaseous sulfuric acid is one of the key precursors for atmospheric new particle formation processes, but its measurement remains challenging. This work develops an estimation method for the gaseous sulfuric acid concentration in an urban environment in China using multiple atmospheric variables that are easier to measure. The consideration of the heterogeneous formation of HONO and the subsequent photo-production of OH radicals improves the performance of the estimation method.
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