occurrence and removal of cyanobacterial metabolites microcystin-LR and geosmin from source waters with powdered activated carbon, The
Cyanobacteria blooms may result in the release of problematic algal metabolites, such as geosmin and microcystin-LR in source waters. The World Health Organization has set a guideline limit of 1 μg/L for the Microcystin-LR in drinking water to prevent adverse health effects. Microcystin-LR is the most common and potent cyanotoxin which can cause severe gastro-enteritis and hepatoritis. Unlike microcystin-LR, geosmin is not known to be harmful however, it imparts an unpleasant earthy off-flavor to drinking water detectable to humans at 2-10 ng/L. Understanding the occurrence of these metabolites ...