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ACP | Articles | Volume 20, issue 20
Atmos. Chem. Phys., 20, 12115–12131, 2020
https://doi.org/10.5194/acp-20-12115-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Chem. Phys., 20, 12115–12131, 2020
https://doi.org/10.5194/acp-20-12115-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 26 Oct 2020

Research article | 26 Oct 2020

Sources of nitrous acid (HONO) in the upper boundary layer and lower free troposphere of the North China Plain: insights from the Mount Tai Observatory

Ying Jiang et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by L.K. Xue on behalf of the Authors (19 Aug 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (31 Aug 2020) by James Roberts
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Short summary
We analyzed the characteristics and sources of HONO in the upper boundary layer and lower free troposphere in the North China Plain, based on the field measurements at Mount Tai. Higher-than-expected levels and broad daytime peaks of HONO were observed. Without presence of ground surfaces, aerosol surface plays a key role in the heterogeneous HONO formation at high altitudes. Models without additional HONO sources largely underestimated the oxidation processes in the elevation atmospheres.
We analyzed the characteristics and sources of HONO in the upper boundary layer and lower free...
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