Dutch authorities warn of blue‑algae risk in swimming waters

The Dutch water boards advise the public to swim only at officially designated sites and to check water‑quality information via the Zwemwater app. They note that natural water can be hazardous because of currents, debris, low temperatures and possible contamination.

The Vallei‑en‑Veluwe water board reported blue‑algae (cyanobacteria) in the pond containing the “IJzeren Zaag” sculpture in Soest. Municipal authorities have installed warning signs and advised residents to avoid any contact with the water. Exposure can cause skin irritation, eye discomfort, and gastrointestinal illness, especially in children. Pets drinking the water may become seriously ill or die. Boating, fishing and swimming have been prohibited, and the water will be continuously monitored for further algal growth.