Atmospheric mercury in the Southern Hemisphere – Part 1: Trend and inter-annual variations in atmospheric mercury at Cape Point, South Africa, in 2007–2017, and on Amsterdam Island in 2012–2017

Slemr, Franz; Martin, Lynwill; Labuschagne, Casper; Mkololo, Thumeka; Angot, Hélène; Magand, Olivier; Dommergue, Aurélien; Garat, Philippe; Ramonet, Michel; Bieser, Johannes

doi:https://doi.org/10.5194/acp-20-7683-2020

Articles | Volume 20, issue 13

Atmos. Chem. Phys., 20, 7683–7692, 2020

https://doi.org/10.5194/acp-20-7683-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Research results from the 14th International Conference on...

Atmos. Chem. Phys., 20, 7683–7692, 2020

https://doi.org/10.5194/acp-20-7683-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 13

Research article 02 Jul 2020

Research article | 02 Jul 2020

Atmospheric mercury in the Southern Hemisphere – Part 1: Trend and inter-annual variations in atmospheric mercury at Cape Point, South Africa, in 2007–2017, and on Amsterdam Island in 2012–2017

Franz Slemr et al.

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Final revised paper (published on 02 Jul 2020)
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Preprint (discussion started on 17 Feb 2020)
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Interactive discussion

Status: closed

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

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RC1: 'acp-2020-70 Atmospheric mercury in the southern hemisphere – Part 1: Trend and inter-annual variations of atmospheric mercury at Cape Point, South Africa, in 2007-2017, and on Amsterdam Island in 2012-2017', Anonymous Referee #1, 25 Feb 2020
- AC1: 'Response to anonymous referee #1', Franz Slemr, 14 May 2020
RC2: 'Interactive comment on “Atmospheric mercury in the southern hemisphere –…” by F. Slemr et al.', Anonymous Referee #2, 19 Mar 2020
- AC2: 'Response to anonymous referee #2', Franz Slemr, 14 May 2020

Peer-review completion

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

AR by Franz Slemr on behalf of the Authors (14 May 2020) Author's response Manuscript

ED: Publish as is (26 May 2020) by Ralf Ebinghaus

Short summary

Monitoring of atmospheric mercury (Hg) concentrations is an important part of the effectiveness evaluation of the Minamata Convention on Hg. Hg concentrations in 2012–2017 at Cape Point, South Africa, and at Amsterdam Island in the remote Indian Ocean are comparable, and no trend or a slightly downward trend was observed at both stations. Over the 2007–2017 period an upward trend was observed at CPT which was driven mainly by the 2007–2014 data. The trend and its change are discussed.