The vertical variability of ammonia in urban Beijing, China

Zhang, Yangyang; Tang, Aohan; Wang, Dandan; Wang, Qingqing; Benedict, Katie; Zhang, Lin; Liu, Duanyang; Li, Yi; Collett Jr., Jeffrey L.; Sun, Yele; Liu, Xuejun

doi:https://doi.org/10.5194/acp-18-16385-2018

Articles | Volume 18, issue 22

https://doi.org/10.5194/acp-18-16385-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-16385-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 22

Research article

|

19 Nov 2018

Research article |

| 19 Nov 2018

The vertical variability of ammonia in urban Beijing, China

Yangyang Zhang, Aohan Tang, Dandan Wang, Qingqing Wang, Katie Benedict, Lin Zhang, Duanyang Liu, Yi Li, Jeffrey L. Collett Jr., Yele Sun, and Xuejun Liu

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Final revised paper (published on 19 Nov 2018)
Supplement to the final revised paper
Preprint (discussion started on 03 Sep 2018)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Review: vertical NH3 profiles over Beijing', Anonymous Referee #2, 03 Oct 2018
- AC1: 'Author response', Xuejun Liu, 17 Oct 2018
RC2: 'Comments', Anonymous Referee #1, 04 Oct 2018
- AC2: 'Author response', Xuejun Liu, 17 Oct 2018
  - RC3: 'Comments', Anonymous Referee #1, 17 Oct 2018
    - AC3: 'Author response', Xuejun Liu, 30 Oct 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Xuejun Liu on behalf of the Authors (30 Oct 2018) Author's response

ED: Publish as is (05 Nov 2018) by John Liggio

AR by Xuejun Liu on behalf of the Authors (06 Nov 2018)

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Short summary

Our study is the first to continually monitor the vertical concentration profile of NH₃ in urban Beijing. Weekly concentrations averaged 13.3 ± 4.8 μg m⁻³. The highest NH₃ concentrations were always observed between 32 and 63 m, decreasing toward the surface and toward higher altitudes. Our results demonstrate a NH₃ rich atmosphere in urban Beijing, from the ground to at least 320 m. Regional transport from the south (intensive agricultural regions) contributed high NH₃ concentrations in Beijing.