Blue-green Algae in Voorschoten

Blue-green algae has been found in the water at various locations in Voorschoten. Blue-green algae can cause serious health problems. Therefore, stay away from the water and do not let pets enter the water or drink from it. Signs will be posted this week along the bodies of water where blue-green algae has been found; however, it can also develop in other locations very quickly.

Blue-green algae are naturally present in water and can produce toxic substances. This usually occurs when there is a specific combination of temperature, light, and nutrients. It also happens more frequently when there is little water flow. Blue-green algae thrive especially in the summer, when temperatures range between 20 and 30 degrees. 

Water Quality

The website www.zwemwater.nl provides information on the water quality at registered swimming locations.