Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 20, issue 11
Articles | Volume 20, issue 11
https://doi.org/10.5194/acp-20-7087-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-20-7087-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 11
Research article
 | 
16 Jun 2020
Research article |  | 16 Jun 2020

Characteristics, sources, and reactions of nitrous acid during winter at an urban site in the Central Plains Economic Region in China

Qi Hao, Nan Jiang, Ruiqin Zhang, Liuming Yang, and Shengli Li

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Short summary
The HONO concentrations during clean, polluted, and severely polluted days were 1.2, 2.3, and 3.7 ppbv. The contributions of the three sources varied under different pollution levels. The proportion of homogenization gradually increased in the second half of the night due to the steady increase in NO. The values of POH+NOnet, CHONO, and Punknown in the severely polluted period were comparatively larger than those in other periods, indicating that HONO participated in many reactions.
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