Jamie Lee Donnelly and her husband, Ryan McKee, with their children Brodie, aged 11, Katie, aged 4, and Annie, aged 1, at their home in Ballina, Co Mayo, which is affected by pyrite and will have to be demolished. Photograph : Keith Heneghan

Hundreds of protesters took the streets of Ballina in Co Mayo on Saturday afternoon to demonstrate a perceived shortfall in funding for pyrite remedia(...)