Shetland Islands Council's Environmental Health Team has received notification that blue-green algae is present in Spiggie Loch. Some blue-green algae may give rise to adverse medical effects - but not always. Toxic algae have caused deaths of livestock and dogs. The treatment of water supplies removes blue-green algae, and additional treatment may be applied to destroy or remove toxins should they arise. For further information please contact Environmental Health on 01595 745250 or by email