Blue-Green Algae - Confirmed Locations
DAERA established an Interagency Blue-Green Algae Monitoring Group last October, in response to the blue green algae bloom during 2023. The Group has included representation from all those involved in monitoring Lough Neagh – NIEA, DAERA Marine and Fisheries, Agri-Food and Biosciences Institute (AFBI), Food Standards Agency, NI Water and has also included the Public Health Agency. Over the autumn / winter period, a Monitoring Protocol has been developed and is currently in stages of being agreed ahead of the 2024 season.
In March 2024 DAERA commissioned a short shore-based sampling programme by AFBI in conjunction with Centre for Environment, Fisheries and Aquaculture Science (CEFAS) whereby overwintering levels of cyanotoxins in Lough Neagh were assessed. Results are expected to be received in the coming weeks. Under the Bathing Waters Programme, DAERA is also now monitoring the candidate bathing water of Rea’s Wood weekly for cyanotoxins, and liaising with the local council as required.
The Department also plans, pending budget confirmation, to commence a Small Business Research Initiative (SBRI) scheme that aims to identify viable technical solutions to deal with the immediate effects of Blue Green Algae in Lough Neagh which may then be able to be used in other waterways.
The underpinning driver of the increase in blue-green algae blooms is diffuse pollution from agricultural and wastewater systems within the Lough Neagh catchment. This, combined with climate change along with the impacts of the invasive, non-native zebra mussels have brought about changes in the Lough’s habitat making it more suitable for blue-green algae.
DAERA has established a cross departmental Water Quality Steering Group to review the scientific and other evidence available and identify further action needed to improve water quality alongside the range of significant programmes already underway. The Steering Group is currently finalising a draft report with a set of evidenced-based actions to tackle Blue-Green Algae and secure longer-term improvements in water quality across Northern Ireland.
Blue-Green algae, or cyanobacteria as they are correctly called, have the potential to release toxins and the public are reminded that blue-green algae can be harmful to humans and is highly toxic to animals. The public are advised to remain vigilant and to follow signage erected by local authorities along our rivers, lakes and shorelines.
Members of the public can report suspected blue green algal blooms in several ways - via the Bloomin Algae App which can be downloaded at: https://www.ceh.ac.uk/our-science/projects/bloomin-algae(external link opens in a new window / tab) or e-mail emergency-pollution@daera-ni.gov.uk or phone 0800 80 70 60.