Atmospheric mercury in the Southern Hemisphere – Part 2: Source apportionment analysis at Cape Point station, South Africa

Bieser, Johannes; Angot, Hélène; Slemr, Franz; Martin, Lynwill

doi:https://doi.org/10.5194/acp-20-10427-2020

Articles | Volume 20, issue 17

https://doi.org/10.5194/acp-20-10427-2020

© 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...

https://doi.org/10.5194/acp-20-10427-2020

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

Articles | Volume 20, issue 17

Research article

|

08 Sep 2020

Research article |

| 08 Sep 2020

Atmospheric mercury in the Southern Hemisphere – Part 2: Source apportionment analysis at Cape Point station, South Africa

Johannes Bieser, Hélène Angot, Franz Slemr, and Lynwill Martin

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Final revised paper (published on 08 Sep 2020)
Supplement to the final revised paper
Preprint (discussion started on 20 Feb 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Minor revisions are needed', Anonymous Referee #1, 19 Mar 2020
RC2: 'acp-2020-63', Anonymous Referee #2, 25 Mar 2020
AC1: 'Answers to the reviewers', Johannes Bieser, 24 Jun 2020

Peer-review completion

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

AR by Johannes Bieser on behalf of the Authors (25 Jun 2020) Manuscript

ED: Publish as is (06 Jul 2020) by Andreas Hofzumahaus

AR by Johannes Bieser on behalf of the Authors (07 Jul 2020)

Short summary

We use numerical models to determine the origin of air masses measured for elemental gaseous mercury (GEM) at Cape Point (CPT), South Africa. Our analysis is based on 10 years of hourly GEM measurements at CPT from 2007 to 2016. Based on GEM concentration and the origin of the air mass, we identify source and sink regions at CPT. We find, that the warm Agulhas Current to the south-east is the major Hg source and the continent the major sink.