%0 journal article %@ 1680-7316 %A Bieser, J., Angot, H., Slemr, F., Martin, L. %D 2020 %J Atmospheric Chemistry and Physics %N 17 %P 10427-10439 %R doi:10.5194/acp-20-10427-2020 %T Atmospheric mercury in the Southern Hemisphere – Part 2: Source apportionment analysis at Cape Point station, South Africa %U https://doi.org/10.5194/acp-20-10427-2020 17 %X Further, we find that mercury concentrations and trends from long-range transport are independent of the source region (e.g. South America, Antarctica) and thus indistinguishable. Therefore, by filtering out air masses from source and sink regions we are able to create a dataset representing a southern hemispheric background Hg concentrations. Based on this dataset, we were able to show that the interannual variability in Hg concentrations at Cape Point is not driven by changes in atmospheric circulation but rather due to changes in global emissions (gold mining and biomass burning).