Atmospheric trace metals measured at a regional background site (Welgegund) in South Africa

Venter, Andrew D.; van Zyl, Pieter G.; Beukes, Johan P.; Josipovic, Micky; Hendriks, Johan; Vakkari, Ville; Laakso, Lauri

doi:https://doi.org/10.5194/acp-17-4251-2017

Articles | Volume 17, issue 6

https://doi.org/10.5194/acp-17-4251-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-4251-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 6

Research article

|

29 Mar 2017

Research article |

| 29 Mar 2017

Atmospheric trace metals measured at a regional background site (Welgegund) in South Africa

Andrew D. Venter, Pieter G. van Zyl, Johan P. Beukes, Micky Josipovic, Johan Hendriks, Ville Vakkari, and Lauri Laakso

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Final revised paper (published on 29 Mar 2017)
Supplement to the final revised paper
Preprint (discussion started on 11 Oct 2016)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Review of “Atmospheric trace metals measured at a regional background site (Welgegund) in South Africa” by Venter et al.', Anonymous Referee #2, 11 Nov 2016
- AC1: 'Response to Referee #2', Pieter van Zyl, 13 Feb 2017
RC2: 'Review', Anonymous Referee #3, 10 Jan 2017
- AC2: 'Response to Referee #3', Pieter van Zyl, 13 Feb 2017

Peer-review completion

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

AR by Pieter van Zyl on behalf of the Authors (13 Feb 2017)

ED: Publish as is (03 Mar 2017) by Sachin S. Gunthe

AR by Pieter van Zyl on behalf of the Authors (07 Mar 2017)

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Short summary

Size-resolved trace metal concentrations were determined at a regional background site impacted by the major pollutant source regions in the interior of South Africa, which include a region holding a large number of pyrometallurgical smelters. ≥70% of trace metal species were in the smaller size fractions, indicating the influence of industrial activities, while the influence of wind-blown dust was reflected in the PM_2.5–10 size fraction. Annual average Ni and As exceeded European standards.