Management of cyanobacteria in drinking-water supplies

This technical brief provides general information on the management of cyanobacteria in drinking-water supplies to help regulators and water suppliers determine when to take action and what actions to take. It describes a number of measures to prevent the formation of cyanobacterial blooms as well as options to manage such blooms when they occur. Although some of the measures are specific to cyanobacteria, many are equally useful for the management of other hazards. Risks from cyanobacteria should be assessed along with the other microbial, chemical, physical and radiological hazards that may be encountered in a water supply. This can be effectively achieved in the context of developing a water safety plan for the water supply system.