Author:Zunckel, M; Koosailee, A; Yarwood, G; Maure, G; Venjonoka, K; Van Tienhoven, AM; Otter, LDate:Jul 2006Monitoring of surface ozone over southern Africa has shown that ambient concentrations often exceed a threshold of 40 ppb at which damage to vegetation by ozone could be expected. The Cross Border Air Pollution Assessment Project (CAPIA) was ...Read more