The Radiological Protection Institute of Ireland has confirmed that it has detected the presence of trace amounts of radioactivity from the Fukushima accident in Ireland, but they are of no public health concern.

The amount of radio-iodine identified is extremely low, is consistent with levels found in other European countries and has no public health implications.

via rte.ie

http://www.rpii.ie/Monitoring-Stations/Clonskeagh.aspx