Public encouraged to report blue-green algae
Blue-green algae is harmful to people and animals.
The Northern Ireland Environment Agency (NIEA) is encouraging members of the public to help monitor freshwater sites for harmful blue-green algae by reporting sightings through an app.
Anyone spending time at places where the algae is likely to bloom, such as lakes, ponds, canals, rivers and reservoirs, will be able to use the “Bloomin’ Algae” app to report the presence of algal blooms.
The app, developed by the UK Centre for Ecology & Hydrology (UKCEH), allows users to upload a photo of the algae along with information about the location and date of the bloom. There is also the option to share information about any activities that are taking place there, to allow the UKCEH team to assess the level of risk to humans and animals.
All reports are examined by environmental experts to verify whether it is blue-green algae or something else. The relevant local authorities, agencies, and landowners are then alerted to enable them to provide warnings to water users.
Blue-green algae, also known as cyanobacteria, is toxic to dogs when ingested. Symptoms include vomiting, diarrhoea, drooling, blood in faeces, disorientation, breathing difficulties, and seizures. Without treatment, it can prove fatal.
It also poses a health risk to people, livestock, and wild animals.
The app, which can also be used by people in England, Wales, Scotland, and the Republic of Ireland, is free to download from Google Play or the App Store.
The Veterinary Medicines Directorate (VMD) is inviting applications from veterinary students to attend a one-week extramural studies (EMS) placement in July 2026.
