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Blue-Green Algae in Loch Lomond

Last updated: 03 March 2017

Update: there are still small pockets of blue-green algae on the shore between Balmaha and Rowardennan. Warning signs are in place.

People are being advised to keep themselves and their pets out of Loch Lomond after blue-green algae has been discovered in the water.

The algae, which can cause rashes after skin contact and illnesses if swallowed, has been spotted at several locations close to Balmaha Bay on the east side of Loch Lomond.

Local authorities will be liaising with SEPA and Scottish Water to monitor this.

A spokesperson for Loch Lomond & The Trossachs National Park said:

“There have been several sightings of blue-green algae in Loch Lomond in recent days and the public are advised to look for signs of it before going swimming or allowing pets to go into the water.

“Blue-green algae can produce toxins that can kill animals including dogs. In humans it can cause rashes after skin contact and illnesses if swallowed. Pet owners should keep their animals away from affected waters.

“Blue-green algae blooms can make the water become green, blue-green or greenish brown and several species can produce musty, earthy or grassy odours, and can also cause foaming on the shoreline.”

If you believe you have spotted Blue-Green Algae and there are no signs present, please contact your Local Authority.

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