Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Howard, Dean; Edwards, Grant C.

doi:https://doi.org/10.5194/acp-18-129-2018

Articles | Volume 18, issue 1

https://doi.org/10.5194/acp-18-129-2018

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

https://doi.org/10.5194/acp-18-129-2018

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

Articles | Volume 18, issue 1

Research article

|

05 Jan 2018

Research article |

| 05 Jan 2018

Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events

Dean Howard and Grant C. Edwards

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Final revised paper (published on 05 Jan 2018)
Preprint (discussion started on 30 Aug 2017)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Re-review Howard and Edwards.', Anonymous Referee #1, 14 Sep 2017
- AC1: 'Response to Reviewer 1', Dean Howard, 02 Nov 2017
RC2: 'Review for “Mercury fluxes over an Australian alpine grassland and observation of nocturnal atmospheric mercury depletion events” by Howard and Edwards. (MS No.: ACP-2017-580)', Anonymous Referee #2, 27 Oct 2017
- AC2: 'Response to Reviewer 2', Dean Howard, 02 Nov 2017

Peer-review completion

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

AR by Dean Howard on behalf of the Authors (02 Nov 2017) Author's response Manuscript

ED: Publish as is (07 Nov 2017) by Aurélien Dommergue

AR by Dean Howard on behalf of the Authors (17 Nov 2017)

Short summary

Air–surface exchange of mercury is an important process for the movement of this toxic metal through the environment. This study presents observations of nocturnal depletion of atmospheric mercury, with surface deposition playing a large role. This deposited mercury is more labile, with up to ~17% re-released the following morning. This study is the first of its kind taken in Australia. Comparison with studies in the Northern Hemisphere shows reasonably good agreement for deposition velocities.