An Bord Pleanala has refused planning permission for the proposed construction of a controversial gas terminal in Bellanaboy, Co Mayo.
Mayo County Council granted permission for the development two years ago, but environmental groups and local residents appealed the decision.
Enterprise Energy Ireland, a subsidiary of Royal/Dutch Shell, wanted to strip an area of bogland in Bellanaboy to make way for the onshore terminal, which would have been cheaper than an offshore facility.
The terminal would have been used to bring gas ashore from the Corrib field.
However, An Bord Pleanala ruled today that the development constituted an unacceptable risk to the health and safety of the local community and the public in general.
It also said the planned terminal posed a pollution risk to the Glenamoy River, Sruwaddacon Bay and Carrowmore Lake and would be contrary to the proper planning and development of the area.