Beware blue-green algae in Argyll lochs and rivers

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Argyll and Bute Council is warning of the dangers of algal blooms in our lochs and rivers.

The blue-green algae (also known as Cyanobacteria) may develop during periods of warmer weather and can be hazardous to those entering the water, including pets.

A council spokesperson said: ‘Where there is evidence of this, it would be sensible to avoid swimming or other water-based activities like canoeing or water skiing. Make sure that pets don’t drink or enter the water. Further advice is available on the Argyll and Bute Council website.

‘If you have any concerns, you can contact our environmental health team on 01546 605519 or via email at or notify SEPA at

A national reporting hub for blue-green algae is operated by the UK Centre for Ecology and Hydrology. ‘Bloomin’ Algae’ is a citizen science app for reporting the presence of harmful algal blooms of blue-green algae.


A severe algal bloom. NO_T28_BlueGreenAlgae