Articles | Volume 17, issue 8
Atmos. Chem. Phys., 17, 5393–5406, 2017
https://doi.org/10.5194/acp-17-5393-2017

Special issue: Global Mercury Observation System – Atmosphere...

Atmos. Chem. Phys., 17, 5393–5406, 2017
https://doi.org/10.5194/acp-17-5393-2017

Research article 26 Apr 2017

Research article | 26 Apr 2017

Four years (2011–2015) of total gaseous mercury measurements from the Cape Verde Atmospheric Observatory

Katie A. Read et al.

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This paper presents 4 years of total gaseous mercury data obtained from measurements made at the Cape Verde Atmospheric Observatory, a subtropical site in the Atlantic Ocean. The data show a clear decreasing trend in the overall concentrations but in air from sub-Saharan Africa the trend is less significant and the data more variable. We attribute this result to an influence from artisanal small-scale gold mining in this region, a source for which there is uncertain information.
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