The results of a ten-year study by Dr. M Matthews have revealed that harmful cyanobacteria are widespread in South Africa’s 50 largest dams, with the Hartbeespoort dam, in the North West, the Darlington dam, in the Eastern Cape, and Spitskop dam, in the Northern Cape, found to be the worst affected by cyanobacterial surface scum. For the full article in Engineering News click here