Brunke, E.G., C. Labuschagne, F. Slemr, R. Ebinghaus, and H. Kock. “ATMOSPHERIC MERCURY MEASUREMENTS AT CAPE POINT, SOUTH AFRICA”. Clean Air Journal 18, no. 1 (June 3, 2010): 17–21. Accessed October 22, 2021. https://cleanairjournal.org.za/article/view/7082.