Measurement report: Statistical modelling of long-term trends of atmospheric inorganic gaseous species within proximity of the pollution hotspot in South Africa. - Swartz, Jan-Stefan; van Zyl, Pieter G.; Beukes, Johan P.; Galy-Lacaux, Corinne; Ramandh, Avishkar; Pienaar, Jacobus J. (Atmospheric Chemistry & Physics, 2020)