Nottingham City Council has issued a warning to the public of the dangers of blue-green algae after finding it in the East Lake (Trout Lake) at Colwick Country Park.
Posting on social media, visitors are warned to be careful as the blue-green algae can kill dogs and other animals.
For humans, it can cause rashes after skin contact and other illnesses if swallowed.
The council posted on Facebook: “Recent testing has shown higher levels of Blue Green Algae in the water of the East (Trout) Lake at Colwick Country Park.
“Swallowing or contact with the water, algal scum or shoreline mats can cause stomach upsets, skin complaints or more serious health effects.
“As a precautionary measure, we ask that no one enters the water or shoreline areas, including children and dogs, to avoid possible contact with algae at this time.
“The West Lake is not currently affected by this advice, having lower algae levels present.”
They added: “We are testing both lakes weekly and will provide any updates to this advice as required.”
