Swimming banned at Prague's Džbán reservoir over toxic algae

Health authorities have banned swimming at Prague's Džbán reservoir after detecting high levels of blue-green algae and algal bloom. Lower concentrations were also found at the nearby Šeberák pond, where children, allergy sufferers and other vulnerable people are advised not to swim. Water quality has also deteriorated slightly at Motol pond, Hostivař reservoir and the Braník beach on the Vltava River, although swimming remains permitted there. Prague's public health authority regularly monitors bathing sites during the summer, testing for harmful bacteria, blue-green algae and overall water quality.