Blue-green algae detected in Lake Edersee
As part of routine water testing by the health department of the district of Waldeck-Frankenberg, increased concentrations of cyanobacteria, colloquially known as "blue-green algae", were detected at the lido in Rehbach in Lake Edersee. Due to the potential health risks, swimming in the Edersee is not recommended with immediate effect.
The water analysis revealed a clearly visible increase in blue-green algae, particularly in the bank area. Blue-green algae can release poisonous substances (toxins) that can cause health problems such as skin irritation, nausea, vomiting or breathing problems if swallowed or in contact with the skin. Children and pets are particularly at risk.
The Health Department provides the following important information in connection with the increased concentration of cyanobacteria/blue-green algae:
- Until further notice, it is not advisable to go swimming or bathing in the Edersee.
- Water sports activities with direct water contact (e.g. surfing, stand-up paddling, diving) are also not recommended.
- Pets should be kept away from the water, especially dogs.
- If any of the above symptoms occur after contact with water, a doctor should be consulted.
If you have any questions, please contact the health department of the Waldeck-Frankenberg district on 05631 954-1554 or e-mail amtsarzt@lkwafkb.de for clarification.
Caption: Example image of the occurrence of so-called "blue-green algae" in a bathing water.
Background "Blue-green algae"
Blue-green algae occur more frequently at warm temperatures in stagnant waters with a high nutrient content. They are a natural component of freshwaters, but can multiply en masse under certain conditions. Blue-green algae can also be recognised by the naked eye. Typical indications of their presence are
- greenish-bluish or turquoise-coloured streaks on the water surface,
- cloudy, milky or "blooming" impression of the water,
- flake-like or cloud-like formations in the water,
- Mouldy or putrid odour, especially in the case of heavy infestation,
- hardly any visibility - the bottom of the water is no longer recognisable even close to the shore.
If such signs are visible, you should always refrain from swimming - even if no official warning has yet been issued.